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-rw-r--r--fs/9p/conv.c1
-rw-r--r--fs/9p/error.c1
-rw-r--r--fs/9p/fcall.c1
-rw-r--r--fs/9p/fcprint.c1
-rw-r--r--fs/9p/fid.c1
-rw-r--r--fs/9p/mux.c3
-rw-r--r--fs/9p/trans_fd.c1
-rw-r--r--fs/9p/v9fs.c1
-rw-r--r--fs/9p/v9fs_vfs.h2
-rw-r--r--fs/9p/vfs_addr.c3
-rw-r--r--fs/9p/vfs_file.c1
-rw-r--r--fs/9p/vfs_inode.c2
-rw-r--r--fs/9p/vfs_super.c1
-rw-r--r--fs/Kconfig12
-rw-r--r--fs/Makefile1
-rw-r--r--fs/adfs/dir.c1
-rw-r--r--fs/adfs/inode.c2
-rw-r--r--fs/affs/affs.h6
-rw-r--r--fs/affs/file.c4
-rw-r--r--fs/affs/symlink.c2
-rw-r--r--fs/afs/file.c2
-rw-r--r--fs/afs/internal.h2
-rw-r--r--fs/befs/linuxvfs.c40
-rw-r--r--fs/bfs/bfs.h2
-rw-r--r--fs/bfs/file.c2
-rw-r--r--fs/binfmt_elf.c15
-rw-r--r--fs/binfmt_flat.c1
-rw-r--r--fs/binfmt_som.c1
-rw-r--r--fs/block_dev.c106
-rw-r--r--fs/buffer.c5
-rw-r--r--fs/char_dev.c2
-rw-r--r--fs/cifs/asn1.c1
-rw-r--r--fs/cifs/cifsfs.h4
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/coda/psdev.c23
-rw-r--r--fs/coda/symlink.c2
-rw-r--r--fs/coda/sysctl.c1
-rw-r--r--fs/compat_ioctl.c2
-rw-r--r--fs/configfs/dir.c6
-rw-r--r--fs/configfs/inode.c2
-rw-r--r--fs/configfs/symlink.c2
-rw-r--r--fs/cramfs/inode.c4
-rw-r--r--fs/dcache.c7
-rw-r--r--fs/dcookies.c1
-rw-r--r--fs/debugfs/file.c1
-rw-r--r--fs/debugfs/inode.c1
-rw-r--r--fs/devfs/Makefile8
-rw-r--r--fs/devfs/base.c2836
-rw-r--r--fs/devfs/util.c97
-rw-r--r--fs/direct-io.c6
-rw-r--r--fs/efs/inode.c2
-rw-r--r--fs/efs/symlink.c2
-rw-r--r--fs/eventpoll.c4
-rw-r--r--fs/exec.c1
-rw-r--r--fs/ext2/balloc.c1
-rw-r--r--fs/ext2/ext2.h6
-rw-r--r--fs/ext2/ialloc.c1
-rw-r--r--fs/ext2/inode.c6
-rw-r--r--fs/ext2/super.c3
-rw-r--r--fs/ext2/xattr.h1
-rw-r--r--fs/ext3/balloc.c1
-rw-r--r--fs/ext3/inode.c6
-rw-r--r--fs/ext3/resize.c1
-rw-r--r--fs/ext3/super.c3
-rw-r--r--fs/ext3/xattr.h1
-rw-r--r--fs/fat/inode.c2
-rw-r--r--fs/file_table.c1
-rw-r--r--fs/freevxfs/vxfs_immed.c2
-rw-r--r--fs/freevxfs/vxfs_inode.c6
-rw-r--r--fs/freevxfs/vxfs_subr.c2
-rw-r--r--fs/fs-writeback.c4
-rw-r--r--fs/fuse/file.c2
-rw-r--r--fs/hfs/hfs_fs.h4
-rw-r--r--fs/hfs/inode.c4
-rw-r--r--fs/hfs/super.c1
-rw-r--r--fs/hfsplus/hfsplus_fs.h4
-rw-r--r--fs/hfsplus/inode.c4
-rw-r--r--fs/hfsplus/super.c1
-rw-r--r--fs/hostfs/hostfs_kern.c6
-rw-r--r--fs/hpfs/file.c2
-rw-r--r--fs/hpfs/hpfs_fn.h4
-rw-r--r--fs/hpfs/namei.c2
-rw-r--r--fs/hugetlbfs/inode.c4
-rw-r--r--fs/inode.c12
-rw-r--r--fs/ioctl.c1
-rw-r--r--fs/ioprio.c29
-rw-r--r--fs/isofs/compress.c3
-rw-r--r--fs/isofs/dir.c1
-rw-r--r--fs/isofs/inode.c3
-rw-r--r--fs/isofs/isofs.h2
-rw-r--r--fs/isofs/rock.c2
-rw-r--r--fs/isofs/zisofs.h2
-rw-r--r--fs/jffs/inode-v23.c4
-rw-r--r--fs/jffs/intrep.c1
-rw-r--r--fs/jffs/jffs_fm.h1
-rw-r--r--fs/jffs2/compr_zlib.c1
-rw-r--r--fs/jffs2/debug.h1
-rw-r--r--fs/jffs2/file.c2
-rw-r--r--fs/jffs2/fs.c1
-rw-r--r--fs/jffs2/nodelist.h1
-rw-r--r--fs/jffs2/os-linux.h2
-rw-r--r--fs/jffs2/super.c1
-rw-r--r--fs/jfs/inode.c2
-rw-r--r--fs/jfs/jfs_inode.h2
-rw-r--r--fs/jfs/jfs_metapage.c2
-rw-r--r--fs/jfs/jfs_metapage.h2
-rw-r--r--fs/jfs/jfs_txnmgr.c2
-rw-r--r--fs/jfs/super.c1
-rw-r--r--fs/lockd/clntproc.c1
-rw-r--r--fs/lockd/svc.c1
-rw-r--r--fs/lockd/svclock.c1
-rw-r--r--fs/lockd/svcproc.c1
-rw-r--r--fs/lockd/svcsubs.c1
-rw-r--r--fs/lockd/xdr.c1
-rw-r--r--fs/minix/inode.c2
-rw-r--r--fs/namei.c20
-rw-r--r--fs/namespace.c1
-rw-r--r--fs/ncpfs/dir.c1
-rw-r--r--fs/ncpfs/inode.c3
-rw-r--r--fs/ncpfs/ioctl.c1
-rw-r--r--fs/ncpfs/mmap.c2
-rw-r--r--fs/ncpfs/ncplib_kernel.c1
-rw-r--r--fs/ncpfs/ncplib_kernel.h1
-rw-r--r--fs/ncpfs/ncpsign_kernel.c1
-rw-r--r--fs/ncpfs/sock.c1
-rw-r--r--fs/ncpfs/symlink.c3
-rw-r--r--fs/nfs/callback.c1
-rw-r--r--fs/nfs/callback_proc.c1
-rw-r--r--fs/nfs/callback_xdr.c1
-rw-r--r--fs/nfs/delegation.c1
-rw-r--r--fs/nfs/direct.c1
-rw-r--r--fs/nfs/file.c2
-rw-r--r--fs/nfs/inode.c1
-rw-r--r--fs/nfs/internal.h4
-rw-r--r--fs/nfs/nfs4state.c1
-rw-r--r--fs/nfs/pagelist.c2
-rw-r--r--fs/nfs/read.c1
-rw-r--r--fs/nfs/sysctl.c1
-rw-r--r--fs/nfs/write.c10
-rw-r--r--fs/nfsctl.c1
-rw-r--r--fs/nfsd/export.c2
-rw-r--r--fs/nfsd/nfs4callback.c1
-rw-r--r--fs/nfsd/nfs4idmap.c1
-rw-r--r--fs/nfsd/nfs4state.c32
-rw-r--r--fs/nfsd/nfsctl.c1
-rw-r--r--fs/nfsd/nfsfh.c27
-rw-r--r--fs/nfsd/nfssvc.c1
-rw-r--r--fs/nfsd/vfs.c15
-rw-r--r--fs/nls/nls_base.c1
-rw-r--r--fs/ntfs/aops.c4
-rw-r--r--fs/ntfs/inode.c33
-rw-r--r--fs/ntfs/ntfs.h4
-rw-r--r--fs/ntfs/super.c31
-rw-r--r--fs/ntfs/sysctl.h1
-rw-r--r--fs/ocfs2/aops.c11
-rw-r--r--fs/ocfs2/cluster/heartbeat.c20
-rw-r--r--fs/ocfs2/cluster/masklog.h22
-rw-r--r--fs/ocfs2/cluster/ocfs2_heartbeat.h1
-rw-r--r--fs/ocfs2/cluster/tcp.c14
-rw-r--r--fs/ocfs2/dir.c6
-rw-r--r--fs/ocfs2/dlm/dlmcommon.h2
-rw-r--r--fs/ocfs2/dlm/dlmdomain.c9
-rw-r--r--fs/ocfs2/dlm/dlmrecovery.c8
-rw-r--r--fs/ocfs2/dlmglue.c3
-rw-r--r--fs/ocfs2/extent_map.c29
-rw-r--r--fs/ocfs2/inode.h2
-rw-r--r--fs/ocfs2/journal.c5
-rw-r--r--fs/ocfs2/mmap.c4
-rw-r--r--fs/ocfs2/ocfs2.h4
-rw-r--r--fs/ocfs2/slot_map.c2
-rw-r--r--fs/ocfs2/super.c49
-rw-r--r--fs/ocfs2/symlink.c2
-rw-r--r--fs/partitions/Makefile1
-rw-r--r--fs/partitions/acorn.c1
-rw-r--r--fs/partitions/check.c32
-rw-r--r--fs/partitions/devfs.c130
-rw-r--r--fs/partitions/devfs.h10
-rw-r--r--fs/partitions/efi.c1
-rw-r--r--fs/partitions/efi.h1
-rw-r--r--fs/partitions/ibm.c1
-rw-r--r--fs/partitions/mac.c1
-rw-r--r--fs/partitions/msdos.c1
-rw-r--r--fs/proc/array.c1
-rw-r--r--fs/proc/base.c1
-rw-r--r--fs/proc/kcore.c1
-rw-r--r--fs/proc/proc_misc.c24
-rw-r--r--fs/proc/root.c1
-rw-r--r--fs/proc/vmcore.c1
-rw-r--r--fs/qnx4/bitmap.c1
-rw-r--r--fs/qnx4/dir.c1
-rw-r--r--fs/qnx4/fsync.c1
-rw-r--r--fs/qnx4/inode.c3
-rw-r--r--fs/qnx4/namei.c1
-rw-r--r--fs/qnx4/truncate.c1
-rw-r--r--fs/ramfs/file-mmu.c2
-rw-r--r--fs/ramfs/file-nommu.c2
-rw-r--r--fs/ramfs/internal.h2
-rw-r--r--fs/reiserfs/bitmap.c1
-rw-r--r--fs/reiserfs/dir.c1
-rw-r--r--fs/reiserfs/do_balan.c1
-rw-r--r--fs/reiserfs/fix_node.c1
-rw-r--r--fs/reiserfs/ibalance.c1
-rw-r--r--fs/reiserfs/inode.c8
-rw-r--r--fs/reiserfs/journal.c1
-rw-r--r--fs/reiserfs/lbalance.c1
-rw-r--r--fs/reiserfs/namei.c1
-rw-r--r--fs/reiserfs/objectid.c1
-rw-r--r--fs/reiserfs/prints.c1
-rw-r--r--fs/reiserfs/procfs.c1
-rw-r--r--fs/reiserfs/stree.c1
-rw-r--r--fs/reiserfs/super.c3
-rw-r--r--fs/reiserfs/tail_conversion.c1
-rw-r--r--fs/romfs/inode.c2
-rw-r--r--fs/smbfs/file.c2
-rw-r--r--fs/smbfs/inode.c1
-rw-r--r--fs/smbfs/proto.h2
-rw-r--r--fs/smbfs/smbiod.c1
-rw-r--r--fs/stat.c1
-rw-r--r--fs/super.c12
-rw-r--r--fs/sysfs/inode.c2
-rw-r--r--fs/sysv/itree.c2
-rw-r--r--fs/sysv/sysv.h2
-rw-r--r--fs/udf/file.c2
-rw-r--r--fs/udf/inode.c2
-rw-r--r--fs/udf/super.c1
-rw-r--r--fs/udf/symlink.c2
-rw-r--r--fs/udf/udfdecl.h7
-rw-r--r--fs/ufs/balloc.c48
-rw-r--r--fs/ufs/file.c4
-rw-r--r--fs/ufs/inode.c15
-rw-r--r--fs/ufs/super.c3
-rw-r--r--fs/ufs/truncate.c148
-rw-r--r--fs/ufs/util.c54
-rw-r--r--fs/ufs/util.h8
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.h2
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.h1
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl32.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_linux.h1
240 files changed, 748 insertions, 3656 deletions
diff --git a/fs/9p/conv.c b/fs/9p/conv.c
index a767e05b60b..1e898144eb7 100644
--- a/fs/9p/conv.c
+++ b/fs/9p/conv.c
@@ -24,7 +24,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/9p/error.c b/fs/9p/error.c
index 981fe8ecd78..ae91555c155 100644
--- a/fs/9p/error.c
+++ b/fs/9p/error.c
@@ -27,7 +27,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/list.h>
diff --git a/fs/9p/fcall.c b/fs/9p/fcall.c
index 6f2617820a4..8556097fcda 100644
--- a/fs/9p/fcall.c
+++ b/fs/9p/fcall.c
@@ -24,7 +24,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/9p/fcprint.c b/fs/9p/fcprint.c
index 583e827baeb..34b96114a28 100644
--- a/fs/9p/fcprint.c
+++ b/fs/9p/fcprint.c
@@ -21,7 +21,6 @@
* Boston, MA 02111-1301 USA
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index b7608af07ce..70492ccb438 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -20,7 +20,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/9p/mux.c b/fs/9p/mux.c
index 12e1baa4508..90a79c78454 100644
--- a/fs/9p/mux.c
+++ b/fs/9p/mux.c
@@ -23,7 +23,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
@@ -932,6 +931,8 @@ v9fs_mux_rpc(struct v9fs_mux_data *m, struct v9fs_fcall *tc,
r.rcall || r.err);
} while (!r.rcall && !r.err && err==-ERESTARTSYS &&
m->trans->status==Connected && !m->err);
+
+ err = -ERESTARTSYS;
}
sigpending = 1;
}
diff --git a/fs/9p/trans_fd.c b/fs/9p/trans_fd.c
index 94e0a7fd9fc..34d43355beb 100644
--- a/fs/9p/trans_fd.c
+++ b/fs/9p/trans_fd.c
@@ -25,7 +25,6 @@
*
*/
-#include <linux/config.h>
#include <linux/in.h>
#include <linux/module.h>
#include <linux/net.h>
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index d37416eb579..22f7ccd58d3 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -23,7 +23,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index f867b8d3e97..450b0c1b385 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -38,7 +38,7 @@
*/
extern struct file_system_type v9fs_fs_type;
-extern struct address_space_operations v9fs_addr_operations;
+extern const struct address_space_operations v9fs_addr_operations;
extern const struct file_operations v9fs_file_operations;
extern const struct file_operations v9fs_dir_operations;
extern struct dentry_operations v9fs_dentry_operations;
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index efda46fb64d..9dfd259a70b 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -31,7 +31,6 @@
#include <linux/string.h>
#include <linux/smp_lock.h>
#include <linux/inet.h>
-#include <linux/version.h>
#include <linux/pagemap.h>
#include <linux/idr.h>
@@ -103,6 +102,6 @@ UnmapAndUnlock:
return retval;
}
-struct address_space_operations v9fs_addr_operations = {
+const struct address_space_operations v9fs_addr_operations = {
.readpage = v9fs_vfs_readpage,
};
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 1a8e46084f0..c3c47eda757 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -31,7 +31,6 @@
#include <linux/string.h>
#include <linux/smp_lock.h>
#include <linux/inet.h>
-#include <linux/version.h>
#include <linux/list.h>
#include <asm/uaccess.h>
#include <linux/idr.h>
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 5c6bdf82146..2f580a197b8 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -300,7 +300,7 @@ clunk_fid:
fid = V9FS_NOFID;
put_fid:
- if (fid >= 0)
+ if (fid != V9FS_NOFID)
v9fs_put_idpool(fid, &v9ses->fidpool);
kfree(fcall);
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 8b15bb22cac..63320d4e15d 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -25,7 +25,6 @@
*/
#include <linux/kernel.h>
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/Kconfig b/fs/Kconfig
index 6dc8cfd6d80..53f5c6d6112 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -326,7 +326,7 @@ source "fs/xfs/Kconfig"
config OCFS2_FS
tristate "OCFS2 file system support (EXPERIMENTAL)"
- depends on NET && EXPERIMENTAL
+ depends on NET && SYSFS && EXPERIMENTAL
select CONFIGFS_FS
select JBD
select CRC32
@@ -356,6 +356,16 @@ config OCFS2_FS
- POSIX ACLs
- readpages / writepages (not user visible)
+config OCFS2_DEBUG_MASKLOG
+ bool "OCFS2 logging support"
+ depends on OCFS2_FS
+ default y
+ help
+ The ocfs2 filesystem has an extensive logging system. The system
+ allows selection of events to log via files in /sys/o2cb/logmask/.
+ This option will enlarge your kernel, but it allows debugging of
+ ocfs2 filesystem issues.
+
config MINIX_FS
tristate "Minix fs support"
help
diff --git a/fs/Makefile b/fs/Makefile
index d0ea6bfccf2..89135428a53 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -66,7 +66,6 @@ obj-$(CONFIG_MSDOS_FS) += msdos/
obj-$(CONFIG_VFAT_FS) += vfat/
obj-$(CONFIG_BFS_FS) += bfs/
obj-$(CONFIG_ISO9660_FS) += isofs/
-obj-$(CONFIG_DEVFS_FS) += devfs/
obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
obj-$(CONFIG_HFS_FS) += hfs/
obj-$(CONFIG_VXFS_FS) += freevxfs/
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 7b075fc397d..d3c7905b2dd 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -9,7 +9,6 @@
*
* Common directory handling for ADFS
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/adfs_fs.h>
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index a02802a3079..534f3eecc98 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -72,7 +72,7 @@ static sector_t _adfs_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping, block, adfs_get_block);
}
-static struct address_space_operations adfs_aops = {
+static const struct address_space_operations adfs_aops = {
.readpage = adfs_readpage,
.writepage = adfs_writepage,
.sync_page = block_sync_page,
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index a43a876742b..0ddd4cc0d1a 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -195,9 +195,9 @@ extern struct inode_operations affs_symlink_inode_operations;
extern const struct file_operations affs_file_operations;
extern const struct file_operations affs_file_operations_ofs;
extern const struct file_operations affs_dir_operations;
-extern struct address_space_operations affs_symlink_aops;
-extern struct address_space_operations affs_aops;
-extern struct address_space_operations affs_aops_ofs;
+extern const struct address_space_operations affs_symlink_aops;
+extern const struct address_space_operations affs_aops;
+extern const struct address_space_operations affs_aops_ofs;
extern struct dentry_operations affs_dentry_operations;
extern struct dentry_operations affs_dentry_operations_intl;
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 7076262af39..3de8590e4f6 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -406,7 +406,7 @@ static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,affs_get_block);
}
-struct address_space_operations affs_aops = {
+const struct address_space_operations affs_aops = {
.readpage = affs_readpage,
.writepage = affs_writepage,
.sync_page = block_sync_page,
@@ -759,7 +759,7 @@ out:
goto done;
}
-struct address_space_operations affs_aops_ofs = {
+const struct address_space_operations affs_aops_ofs = {
.readpage = affs_readpage_ofs,
//.writepage = affs_writepage_ofs,
//.sync_page = affs_sync_page_ofs,
diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c
index 426f0f094f2..f802256a593 100644
--- a/fs/affs/symlink.c
+++ b/fs/affs/symlink.c
@@ -66,7 +66,7 @@ fail:
return err;
}
-struct address_space_operations affs_symlink_aops = {
+const struct address_space_operations affs_symlink_aops = {
.readpage = affs_symlink_readpage,
};
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 7bb716887e2..67d6634101f 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -35,7 +35,7 @@ struct inode_operations afs_file_inode_operations = {
.getattr = afs_inode_getattr,
};
-struct address_space_operations afs_fs_aops = {
+const struct address_space_operations afs_fs_aops = {
.readpage = afs_file_readpage,
.sync_page = block_sync_page,
.set_page_dirty = __set_page_dirty_nobuffers,
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 72febdf9a35..e88b3b65ae4 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -69,7 +69,7 @@ extern const struct file_operations afs_dir_file_operations;
/*
* file.c
*/
-extern struct address_space_operations afs_fs_aops;
+extern const struct address_space_operations afs_fs_aops;
extern struct inode_operations afs_file_inode_operations;
#ifdef AFS_CACHING_SUPPORT
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 08201fab26c..fcaeead9696 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -73,7 +73,7 @@ static struct inode_operations befs_dir_inode_operations = {
.lookup = befs_lookup,
};
-static struct address_space_operations befs_aops = {
+static const struct address_space_operations befs_aops = {
.readpage = befs_readpage,
.sync_page = block_sync_page,
.bmap = befs_bmap,
@@ -325,7 +325,7 @@ befs_read_inode(struct inode *inode)
if (!bh) {
befs_error(sb, "unable to read inode block - "
"inode = %lu", inode->i_ino);
- goto unaquire_none;
+ goto unacquire_none;
}
raw_inode = (befs_inode *) bh->b_data;
@@ -334,7 +334,7 @@ befs_read_inode(struct inode *inode)
if (befs_check_inode(sb, raw_inode, inode->i_ino) != BEFS_OK) {
befs_error(sb, "Bad inode: %lu", inode->i_ino);
- goto unaquire_bh;
+ goto unacquire_bh;
}
inode->i_mode = (umode_t) fs32_to_cpu(sb, raw_inode->mode);
@@ -402,17 +402,17 @@ befs_read_inode(struct inode *inode)
befs_error(sb, "Inode %lu is not a regular file, "
"directory or symlink. THAT IS WRONG! BeFS has no "
"on disk special files", inode->i_ino);
- goto unaquire_bh;
+ goto unacquire_bh;
}
brelse(bh);
befs_debug(sb, "<--- befs_read_inode()");
return;
- unaquire_bh:
+ unacquire_bh:
brelse(bh);
- unaquire_none:
+ unacquire_none:
make_bad_inode(inode);
befs_debug(sb, "<--- befs_read_inode() - Bad inode");
return;
@@ -761,14 +761,14 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
printk(KERN_ERR
"BeFS(%s): Unable to allocate memory for private "
"portion of superblock. Bailing.\n", sb->s_id);
- goto unaquire_none;
+ goto unacquire_none;
}
befs_sb = BEFS_SB(sb);
memset(befs_sb, 0, sizeof(befs_sb_info));
if (!parse_options((char *) data, &befs_sb->mount_opts)) {
befs_error(sb, "cannot parse mount options");
- goto unaquire_priv_sbp;
+ goto unacquire_priv_sbp;
}
befs_debug(sb, "---> befs_fill_super()");
@@ -794,7 +794,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
if (!(bh = sb_bread(sb, sb_block))) {
befs_error(sb, "unable to read superblock");
- goto unaquire_priv_sbp;
+ goto unacquire_priv_sbp;
}
/* account for offset of super block on x86 */
@@ -809,20 +809,20 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
}
if (befs_load_sb(sb, disk_sb) != BEFS_OK)
- goto unaquire_bh;
+ goto unacquire_bh;
befs_dump_super_block(sb, disk_sb);
brelse(bh);
if (befs_check_sb(sb) != BEFS_OK)
- goto unaquire_priv_sbp;
+ goto unacquire_priv_sbp;
if( befs_sb->num_blocks > ~((sector_t)0) ) {
befs_error(sb, "blocks count: %Lu "
"is larger than the host can use",
befs_sb->num_blocks);
- goto unaquire_priv_sbp;
+ goto unacquire_priv_sbp;
}
/*
@@ -838,7 +838,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
if (!sb->s_root) {
iput(root);
befs_error(sb, "get root inode failed");
- goto unaquire_priv_sbp;
+ goto unacquire_priv_sbp;
}
/* load nls library */
@@ -860,13 +860,13 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
/*****************/
- unaquire_bh:
+ unacquire_bh:
brelse(bh);
- unaquire_priv_sbp:
+ unacquire_priv_sbp:
kfree(sb->s_fs_info);
- unaquire_none:
+ unacquire_none:
sb->s_fs_info = NULL;
return -EINVAL;
}
@@ -925,18 +925,18 @@ init_befs_fs(void)
err = befs_init_inodecache();
if (err)
- goto unaquire_none;
+ goto unacquire_none;
err = register_filesystem(&befs_fs_type);
if (err)
- goto unaquire_inodecache;
+ goto unacquire_inodecache;
return 0;
-unaquire_inodecache:
+unacquire_inodecache:
befs_destroy_inodecache();
-unaquire_none:
+unacquire_none:
return err;
}
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 9d791004b21..31973bbbf05 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -50,7 +50,7 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
/* file.c */
extern struct inode_operations bfs_file_inops;
extern const struct file_operations bfs_file_operations;
-extern struct address_space_operations bfs_aops;
+extern const struct address_space_operations bfs_aops;
/* dir.c */
extern struct inode_operations bfs_dir_inops;
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index d83cd74a2e4..3d5aca28a0a 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -153,7 +153,7 @@ static sector_t bfs_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping, block, bfs_get_block);
}
-struct address_space_operations bfs_aops = {
+const struct address_space_operations bfs_aops = {
.readpage = bfs_readpage,
.writepage = bfs_writepage,
.sync_page = block_sync_page,
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index d0434406eae..f42e64210ee 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -84,7 +84,7 @@ static struct linux_binfmt elf_format = {
.min_coredump = ELF_EXEC_PAGESIZE
};
-#define BAD_ADDR(x) ((unsigned long)(x) > TASK_SIZE)
+#define BAD_ADDR(x) ((unsigned long)(x) >= TASK_SIZE)
static int set_brk(unsigned long start, unsigned long end)
{
@@ -394,7 +394,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
* <= p_memsize so it's only necessary to check p_memsz.
*/
k = load_addr + eppnt->p_vaddr;
- if (k > TASK_SIZE ||
+ if (BAD_ADDR(k) ||
eppnt->p_filesz > eppnt->p_memsz ||
eppnt->p_memsz > TASK_SIZE ||
TASK_SIZE - eppnt->p_memsz < k) {
@@ -887,7 +887,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
* allowed task size. Note that p_filesz must always be
* <= p_memsz so it is only necessary to check p_memsz.
*/
- if (k > TASK_SIZE || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+ if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
elf_ppnt->p_memsz > TASK_SIZE ||
TASK_SIZE - elf_ppnt->p_memsz < k) {
/* set_brk can never work. Avoid overflows. */
@@ -941,10 +941,9 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
interpreter,
&interp_load_addr);
if (BAD_ADDR(elf_entry)) {
- printk(KERN_ERR "Unable to load interpreter %.128s\n",
- elf_interpreter);
force_sig(SIGSEGV, current);
- retval = -ENOEXEC; /* Nobody gets to see this, but.. */
+ retval = IS_ERR((void *)elf_entry) ?
+ (int)elf_entry : -EINVAL;
goto out_free_dentry;
}
reloc_func_desc = interp_load_addr;
@@ -955,8 +954,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
} else {
elf_entry = loc->elf_ex.e_entry;
if (BAD_ADDR(elf_entry)) {
- send_sig(SIGSEGV, current, 0);
- retval = -ENOEXEC; /* Nobody gets to see this, but.. */
+ force_sig(SIGSEGV, current);
+ retval = -EINVAL;
goto out_free_dentry;
}
}
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index c94d52eafd1..a62fd4018a2 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -16,7 +16,6 @@
*/
#include <linux/module.h>
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index 00a91dc25d1..32b5d625ce9 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -32,7 +32,6 @@
#include <asm/uaccess.h>
#include <asm/pgtable.h>
-#include <linux/config.h>
#include <linux/elf.h>
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 028d9fb9c2d..37534573960 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -5,14 +5,12 @@
* Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/fcntl.h>
#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/major.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#include <linux/highmem.h>
#include <linux/blkdev.h>
@@ -741,7 +739,7 @@ static int bd_claim_by_kobject(struct block_device *bdev, void *holder,
if (!bo)
return -ENOMEM;
- mutex_lock(&bdev->bd_mutex);
+ mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_PARTITION);
res = bd_claim(bdev, holder);
if (res || !add_bd_holder(bdev, bo))
free_bd_holder(bo);
@@ -766,7 +764,7 @@ static void bd_release_from_kobject(struct block_device *bdev,
if (!kobj)
return;
- mutex_lock(&bdev->bd_mutex);
+ mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_PARTITION);
bd_release(bdev);
if ((bo = del_bd_holder(bdev, kobj)))
free_bd_holder(bo);
@@ -824,6 +822,22 @@ struct block_device *open_by_devnum(dev_t dev, unsigned mode)
EXPORT_SYMBOL(open_by_devnum);
+static int
+blkdev_get_partition(struct block_device *bdev, mode_t mode, unsigned flags);
+
+struct block_device *open_partition_by_devnum(dev_t dev, unsigned mode)
+{
+ struct block_device *bdev = bdget(dev);
+ int err = -ENOMEM;
+ int flags = mode & FMODE_WRITE ? O_RDWR : O_RDONLY;
+ if (bdev)
+ err = blkdev_get_partition(bdev, mode, flags);
+ return err ? ERR_PTR(err) : bdev;
+}
+
+EXPORT_SYMBOL(open_partition_by_devnum);
+
+
/*
* This routine checks whether a removable media has been changed,
* and invalidates all buffer-cache-entries in that case. This
@@ -870,7 +884,11 @@ void bd_set_size(struct block_device *bdev, loff_t size)
}
EXPORT_SYMBOL(bd_set_size);
-static int do_open(struct block_device *bdev, struct file *file)
+static int
+blkdev_get_whole(struct block_device *bdev, mode_t mode, unsigned flags);
+
+static int
+do_open(struct block_device *bdev, struct file *file, unsigned int subclass)
{
struct module *owner = NULL;
struct gendisk *disk;
@@ -887,7 +905,8 @@ static int do_open(struct block_device *bdev, struct file *file)
}
owner = disk->fops->owner;
- mutex_lock(&bdev->bd_mutex);
+ mutex_lock_nested(&bdev->bd_mutex, subclass);
+
if (!bdev->bd_openers) {
bdev->bd_disk = disk;
bdev->bd_contains = bdev;
@@ -914,11 +933,11 @@ static int do_open(struct block_device *bdev, struct file *file)
ret = -ENOMEM;
if (!whole)
goto out_first;
- ret = blkdev_get(whole, file->f_mode, file->f_flags);
+ ret = blkdev_get_whole(whole, file->f_mode, file->f_flags);
if (ret)
goto out_first;
bdev->bd_contains = whole;
- mutex_lock(&whole->bd_mutex);
+ mutex_lock_nested(&whole->bd_mutex, BD_MUTEX_WHOLE);
whole->bd_part_count++;
p = disk->part[part - 1];
bdev->bd_inode->i_data.backing_dev_info =
@@ -946,7 +965,8 @@ static int do_open(struct block_device *bdev, struct file *file)
if (bdev->bd_invalidated)
rescan_partitions(bdev->bd_disk, bdev);
} else {
- mutex_lock(&bdev->bd_contains->bd_mutex);
+ mutex_lock_nested(&bdev->bd_contains->bd_mutex,
+ BD_MUTEX_PARTITION);
bdev->bd_contains->bd_part_count++;
mutex_unlock(&bdev->bd_contains->bd_mutex);
}
@@ -987,11 +1007,49 @@ int blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags)
fake_file.f_dentry = &fake_dentry;
fake_dentry.d_inode = bdev->bd_inode;
- return do_open(bdev, &fake_file);
+ return do_open(bdev, &fake_file, BD_MUTEX_NORMAL);
}
EXPORT_SYMBOL(blkdev_get);
+static int
+blkdev_get_whole(struct block_device *bdev, mode_t mode, unsigned flags)
+{
+ /*
+ * This crockload is due to bad choice of ->open() type.
+ * It will go away.
+ * For now, block device ->open() routine must _not_
+ * examine anything in 'inode' argument except ->i_rdev.
+ */
+ struct file fake_file = {};
+ struct dentry fake_dentry = {};
+ fake_file.f_mode = mode;
+ fake_file.f_flags = flags;
+ fake_file.f_dentry = &fake_dentry;
+ fake_dentry.d_inode = bdev->bd_inode;
+
+ return do_open(bdev, &fake_file, BD_MUTEX_WHOLE);
+}
+
+static int
+blkdev_get_partition(struct block_device *bdev, mode_t mode, unsigned flags)
+{
+ /*
+ * This crockload is due to bad choice of ->open() type.
+ * It will go away.
+ * For now, block device ->open() routine must _not_
+ * examine anything in 'inode' argument except ->i_rdev.
+ */
+ struct file fake_file = {};
+ struct dentry fake_dentry = {};
+ fake_file.f_mode = mode;
+ fake_file.f_flags = flags;
+ fake_file.f_dentry = &fake_dentry;
+ fake_dentry.d_inode = bdev->bd_inode;
+
+ return do_open(bdev, &fake_file, BD_MUTEX_PARTITION);
+}
+
static int blkdev_open(struct inode * inode, struct file * filp)
{
struct block_device *bdev;
@@ -1007,7 +1065,7 @@ static int blkdev_open(struct inode * inode, struct file * filp)
bdev = bd_acquire(inode);
- res = do_open(bdev, filp);
+ res = do_open(bdev, filp, BD_MUTEX_NORMAL);
if (res)
return res;
@@ -1021,13 +1079,13 @@ static int blkdev_open(struct inode * inode, struct file * filp)
return res;
}
-int blkdev_put(struct block_device *bdev)
+static int __blkdev_put(struct block_device *bdev, unsigned int subclass)
{
int ret = 0;
struct inode *bd_inode = bdev->bd_inode;
struct gendisk *disk = bdev->bd_disk;
- mutex_lock(&bdev->bd_mutex);
+ mutex_lock_nested(&bdev->bd_mutex, subclass);
lock_kernel();
if (!--bdev->bd_openers) {
sync_blockdev(bdev);
@@ -1037,7 +1095,8 @@ int blkdev_put(struct block_device *bdev)
if (disk->fops->release)
ret = disk->fops->release(bd_inode, NULL);
} else {
- mutex_lock(&bdev->bd_contains->bd_mutex);
+ mutex_lock_nested(&bdev->bd_contains->bd_mutex,
+ subclass + 1);
bdev->bd_contains->bd_part_count--;
mutex_unlock(&bdev->bd_contains->bd_mutex);
}
@@ -1053,9 +1112,8 @@ int blkdev_put(struct block_device *bdev)
}
bdev->bd_disk = NULL;
bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info;
- if (bdev != bdev->bd_contains) {
- blkdev_put(bdev->bd_contains);
- }
+ if (bdev != bdev->bd_contains)
+ __blkdev_put(bdev->bd_contains, subclass + 1);
bdev->bd_contains = NULL;
}
unlock_kernel();
@@ -1064,8 +1122,20 @@ int blkdev_put(struct block_device *bdev)
return ret;
}
+int blkdev_put(struct block_device *bdev)
+{
+ return __blkdev_put(bdev, BD_MUTEX_NORMAL);
+}
+
EXPORT_SYMBOL(blkdev_put);
+int blkdev_put_partition(struct block_device *bdev)
+{
+ return __blkdev_put(bdev, BD_MUTEX_PARTITION);
+}
+
+EXPORT_SYMBOL(blkdev_put_partition);
+
static int blkdev_close(struct inode * inode, struct file * filp)
{
struct block_device *bdev = I_BDEV(filp->f_mapping->host);
@@ -1095,7 +1165,7 @@ static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
return blkdev_ioctl(file->f_mapping->host, file, cmd, arg);
}
-struct address_space_operations def_blk_aops = {
+const struct address_space_operations def_blk_aops = {
.readpage = blkdev_readpage,
.writepage = blkdev_writepage,
.sync_page = block_sync_page,
diff --git a/fs/buffer.c b/fs/buffer.c
index f23bb647db4..3660dcb9759 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -18,7 +18,6 @@
* async buffer flushing, 1999 Andrea Arcangeli <andrea@suse.de>
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/syscalls.h>
#include <linux/fs.h>
@@ -852,7 +851,7 @@ int __set_page_dirty_buffers(struct page *page)
write_lock_irq(&mapping->tree_lock);
if (page->mapping) { /* Race with truncate? */
if (mapping_cap_account_dirty(mapping))
- inc_page_state(nr_dirty);
+ __inc_zone_page_state(page, NR_FILE_DIRTY);
radix_tree_tag_set(&mapping->page_tree,
page_index(page),
PAGECACHE_TAG_DIRTY);
@@ -2598,7 +2597,7 @@ int nobh_truncate_page(struct address_space *mapping, loff_t from)
unsigned offset = from & (PAGE_CACHE_SIZE-1);
unsigned to;
struct page *page;
- struct address_space_operations *a_ops = mapping->a_ops;
+ const struct address_space_operations *a_ops = mapping->a_ops;
char *kaddr;
int ret = 0;
diff --git a/fs/char_dev.c b/fs/char_dev.c
index f3418f7a6e9..a4cbc6706ef 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -4,7 +4,6 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
@@ -14,7 +13,6 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/seq_file.h>
#include <linux/kobject.h>
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 031cdf29325..2e75883b7f5 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -17,7 +17,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index a6384d83fde..8f75c6f2470 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -32,8 +32,8 @@
#define TRUE 1
#endif
-extern struct address_space_operations cifs_addr_ops;
-extern struct address_space_operations cifs_addr_ops_smallbuf;
+extern const struct address_space_operations cifs_addr_ops;
+extern const struct address_space_operations cifs_addr_ops_smallbuf;
/* Functions related to super block operations */
extern struct super_operations cifs_super_ops;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index e9c1573f6aa..944d2b9e092 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -324,7 +324,7 @@ out:
return rc;
}
-/* Try to reaquire byte range locks that were released when session */
+/* Try to reacquire byte range locks that were released when session */
/* to server was lost */
static int cifs_relock_file(struct cifsFileInfo *cifsFile)
{
@@ -1942,7 +1942,7 @@ static int cifs_prepare_write(struct file *file, struct page *page,
return 0;
}
-struct address_space_operations cifs_addr_ops = {
+const struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
.readpages = cifs_readpages,
.writepage = cifs_writepage,
@@ -1959,7 +1959,7 @@ struct address_space_operations cifs_addr_ops = {
* contain the header plus one complete page of data. Otherwise, we need
* to leave cifs_readpages out of the address space operations.
*/
-struct address_space_operations cifs_addr_ops_smallbuf = {
+const struct address_space_operations cifs_addr_ops_smallbuf = {
.readpage = cifs_readpage,
.writepage = cifs_writepage,
.writepages = cifs_writepages,
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 7caee8d8ea3..803aacf0d49 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -28,7 +28,6 @@
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/file.h>
@@ -365,22 +364,12 @@ static int init_coda_psdev(void)
err = PTR_ERR(coda_psdev_class);
goto out_chrdev;
}
- devfs_mk_dir ("coda");
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_create(coda_psdev_class, NULL,
MKDEV(CODA_PSDEV_MAJOR,i), NULL, "cfs%d", i);
- err = devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
- S_IFCHR|S_IRUSR|S_IWUSR, "coda/%d", i);
- if (err)
- goto out_class;
- }
coda_sysctl_init();
goto out;
-out_class:
- for (i = 0; i < MAX_CODADEVS; i++)
- class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- class_destroy(coda_psdev_class);
out_chrdev:
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
out:
@@ -419,12 +408,9 @@ static int __init init_coda(void)
}
return 0;
out:
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- devfs_remove("coda/%d", i);
- }
class_destroy(coda_psdev_class);
- devfs_remove("coda");
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
coda_sysctl_clean();
out1:
@@ -441,12 +427,9 @@ static void __exit exit_coda(void)
if ( err != 0 ) {
printk("coda: failed to unregister filesystem\n");
}
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- devfs_remove("coda/%d", i);
- }
class_destroy(coda_psdev_class);
- devfs_remove("coda");
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
coda_sysctl_clean();
coda_destroy_inodecache();
diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
index b35e5bbd9c9..76e00a65a75 100644
--- a/fs/coda/symlink.c
+++ b/fs/coda/symlink.c
@@ -50,6 +50,6 @@ fail:
return error;
}
-struct address_space_operations coda_symlink_aops = {
+const struct address_space_operations coda_symlink_aops = {
.readpage = coda_symlink_filler,
};
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index f0b10757288..1c82e9a7d7c 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -11,7 +11,6 @@
*
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/sysctl.h>
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index d8ecfedef18..4063a939697 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -10,7 +10,6 @@
* ioctls.
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <linux/kernel.h>
@@ -44,7 +43,6 @@
#include <linux/loop.h>
#include <linux/auto_fs.h>
#include <linux/auto_fs4.h>
-#include <linux/devfs_fs.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 207f8006fd6..df025453dd9 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -211,7 +211,7 @@ static void remove_dir(struct dentry * d)
struct configfs_dirent * sd;
sd = d->d_fsdata;
- list_del_init(&sd->s_sibling);
+ list_del_init(&sd->s_sibling);
configfs_put(sd);
if (d->d_inode)
simple_rmdir(parent->d_inode,d);
@@ -330,7 +330,7 @@ static int configfs_detach_prep(struct dentry *dentry)
ret = configfs_detach_prep(sd->s_dentry);
if (!ret)
- continue;
+ continue;
} else
ret = -ENOTEMPTY;
@@ -931,7 +931,7 @@ int configfs_rename_dir(struct config_item * item, const char *new_name)
new_dentry = lookup_one_len(new_name, parent, strlen(new_name));
if (!IS_ERR(new_dentry)) {
- if (!new_dentry->d_inode) {
+ if (!new_dentry->d_inode) {
error = config_item_set_name(item, "%s", new_name);
if (!error) {
d_add(new_dentry, NULL);
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index c153bd9534c..e14488ca641 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -38,7 +38,7 @@
extern struct super_block * configfs_sb;
-static struct address_space_operations configfs_aops = {
+static const struct address_space_operations configfs_aops = {
.readpage = simple_readpage,
.prepare_write = simple_prepare_write,
.commit_write = simple_commit_write
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index e5512e295cf..fb65e0800a8 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -66,7 +66,7 @@ static void fill_item_path(struct config_item * item, char * buffer, int length)
}
static int create_link(struct config_item *parent_item,
- struct config_item *item,
+ struct config_item *item,
struct dentry *dentry)
{
struct configfs_dirent *target_sd = item->ci_dentry->d_fsdata;
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index c45d7386080..223c0431042 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -30,7 +30,7 @@
static struct super_operations cramfs_ops;
static struct inode_operations cramfs_dir_inode_operations;
static const struct file_operations cramfs_directory_operations;
-static struct address_space_operations cramfs_aops;
+static const struct address_space_operations cramfs_aops;
static DEFINE_MUTEX(read_mutex);
@@ -501,7 +501,7 @@ static int cramfs_readpage(struct file *file, struct page * page)
return 0;
}
-static struct address_space_operations cramfs_aops = {
+static const struct address_space_operations cramfs_aops = {
.readpage = cramfs_readpage
};
diff --git a/fs/dcache.c b/fs/dcache.c
index 48b44a714b3..1b4a3a34ec5 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -14,7 +14,6 @@
* the dcache entry is deleted or garbage collected.
*/
-#include <linux/config.h>
#include <linux/syscalls.h>
#include <linux/string.h>
#include <linux/mm.h>
@@ -39,7 +38,7 @@ int sysctl_vfs_cache_pressure __read_mostly = 100;
EXPORT_SYMBOL_GPL(sysctl_vfs_cache_pressure);
__cacheline_aligned_in_smp DEFINE_SPINLOCK(dcache_lock);
-static seqlock_t rename_lock __cacheline_aligned_in_smp = SEQLOCK_UNLOCKED;
+static __cacheline_aligned_in_smp DEFINE_SEQLOCK(rename_lock);
EXPORT_SYMBOL(dcache_lock);
@@ -1340,10 +1339,10 @@ void d_move(struct dentry * dentry, struct dentry * target)
*/
if (target < dentry) {
spin_lock(&target->d_lock);
- spin_lock(&dentry->d_lock);
+ spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
} else {
spin_lock(&dentry->d_lock);
- spin_lock(&target->d_lock);
+ spin_lock_nested(&target->d_lock, DENTRY_D_LOCK_NESTED);
}
/* Move the dentry to the target hash queue, if on different bucket */
diff --git a/fs/dcookies.c b/fs/dcookies.c
index 8749339bf4f..0c4b0674854 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -12,7 +12,6 @@
* to the pair and can be looked up from userspace.
*/
-#include <linux/config.h>
#include <linux/syscalls.h>
#include <linux/module.h>
#include <linux/slab.h>
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 66a505422e5..39640fd0345 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -13,7 +13,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 6fa1e04f841..e8ae3042b80 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -16,7 +16,6 @@
/* uncomment to get debug messages from the debug filesystem, ah the irony. */
/* #define DEBUG */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/mount.h>
diff --git a/fs/devfs/Makefile b/fs/devfs/Makefile
deleted file mode 100644
index 6dd8d1245e2..00000000000
--- a/fs/devfs/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for the linux devfs-filesystem routines.
-#
-
-obj-$(CONFIG_DEVFS_FS) += devfs.o
-
-devfs-objs := base.o util.o
-
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
deleted file mode 100644
index 51a97f13274..00000000000
--- a/fs/devfs/base.c
+++ /dev/null
@@ -1,2836 +0,0 @@
-/* devfs (Device FileSystem) driver.
-
- Copyright (C) 1998-2002 Richard Gooch
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Richard Gooch may be reached by email at rgooch@atnf.csiro.au
- The postal address is:
- Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
-
- ChangeLog
-
- 19980110 Richard Gooch <rgooch@atnf.csiro.au>
- Original version.
- v0.1
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Created per-fs inode table rather than using inode->u.generic_ip
- v0.2
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Created .epoch inode which has a ctime of 0.
- Fixed loss of named pipes when dentries lost.
- Fixed loss of inode data when devfs_register() follows mknod().
- v0.3
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Fix for when compiling with CONFIG_KERNELD.
- 19980112 Richard Gooch <rgooch@atnf.csiro.au>
- Fix for readdir() which sometimes didn't show entries.
- Added <<tolerant>> option to <devfs_register>.
- v0.4
- 19980113 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_fill_file> function.
- v0.5
- 19980115 Richard Gooch <rgooch@atnf.csiro.au>
- Added subdirectory support. Major restructuring.
- 19980116 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <find_by_dev> to not search major=0,minor=0.
- Added symlink support.
- v0.6
- 19980120 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_mk_dir> function and support directory unregister
- 19980120 Richard Gooch <rgooch@atnf.csiro.au>
- Auto-ownership uses real uid/gid rather than effective uid/gid.
- v0.7
- 19980121 Richard Gooch <rgooch@atnf.csiro.au>
- Supported creation of sockets.
- v0.8
- 19980122 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_HIDE_UNREG flag.
- Interface change to <devfs_mk_symlink>.
- Created <devfs_symlink> to support symlink(2).
- v0.9
- 19980123 Richard Gooch <rgooch@atnf.csiro.au>
- Added check to <devfs_fill_file> to check inode is in devfs.
- Added optional traversal of symlinks.
- v0.10
- 19980124 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_flags> and <devfs_set_flags>.
- v0.11
- 19980125 C. Scott Ananian <cananian@alumni.princeton.edu>
- Created <devfs_find_handle>.
- 19980125 Richard Gooch <rgooch@atnf.csiro.au>
- Allow removal of symlinks.
- v0.12
- 19980125 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_set_symlink_destination>.
- 19980126 Richard Gooch <rgooch@atnf.csiro.au>
- Moved DEVFS_SUPER_MAGIC into header file.
- Added DEVFS_FL_HIDE flag.
- Created <devfs_get_maj_min>.
- Created <devfs_get_handle_from_inode>.
- Fixed minor bug in <find_by_dev>.
- 19980127 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <find_by_dev>, <find_entry>,
- <devfs_unregister>, <devfs_fill_file> and <devfs_find_handle>.
- Fixed inode times when symlink created with symlink(2).
- v0.13
- 19980129 C. Scott Ananian <cananian@alumni.princeton.edu>
- Exported <devfs_set_symlink_destination>, <devfs_get_maj_min>
- and <devfs_get_handle_from_inode>.
- 19980129 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_unlink> to support unlink(2).
- v0.14
- 19980129 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed kerneld support for entries in devfs subdirectories.
- 19980130 Richard Gooch <rgooch@atnf.csiro.au>
- Bugfixes in <call_kerneld>.
- v0.15
- 19980207 Richard Gooch <rgooch@atnf.csiro.au>
- Call kerneld when looking up unregistered entries.
- v0.16
- 19980326 Richard Gooch <rgooch@atnf.csiro.au>
- Modified interface to <devfs_find_handle> for symlink traversal.
- v0.17
- 19980331 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed persistence bug with device numbers for manually created
- device files.
- Fixed problem with recreating symlinks with different content.
- v0.18
- 19980401 Richard Gooch <rgooch@atnf.csiro.au>
- Changed to CONFIG_KMOD.
- Hide entries which are manually unlinked.
- Always invalidate devfs dentry cache when registering entries.
- Created <devfs_rmdir> to support rmdir(2).
- Ensure directories created by <devfs_mk_dir> are visible.
- v0.19
- 19980402 Richard Gooch <rgooch@atnf.csiro.au>
- Invalidate devfs dentry cache when making directories.
- Invalidate devfs dentry cache when removing entries.
- Fixed persistence bug with fifos.
- v0.20
- 19980421 Richard Gooch <rgooch@atnf.csiro.au>
- Print process command when debugging kerneld/kmod.
- Added debugging for register/unregister/change operations.
- 19980422 Richard Gooch <rgooch@atnf.csiro.au>
- Added "devfs=" boot options.
- v0.21
- 19980426 Richard Gooch <rgooch@atnf.csiro.au>
- No longer lock/unlock superblock in <devfs_put_super>.
- Drop negative dentries when they are released.
- Manage dcache more efficiently.
- v0.22
- 19980427 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_AUTO_DEVNUM flag.
- v0.23
- 19980430 Richard Gooch <rgooch@atnf.csiro.au>
- No longer set unnecessary methods.
- v0.24
- 19980504 Richard Gooch <rgooch@atnf.csiro.au>
- Added PID display to <call_kerneld> debugging message.
- Added "after" debugging message to <call_kerneld>.
- 19980519 Richard Gooch <rgooch@atnf.csiro.au>
- Added "diread" and "diwrite" boot options.
- 19980520 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed persistence problem with permissions.
- v0.25
- 19980602 Richard Gooch <rgooch@atnf.csiro.au>
- Support legacy device nodes.
- Fixed bug where recreated inodes were hidden.
- v0.26
- 19980602 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <get_vfs_inode>.
- 19980607 Richard Gooch <rgooch@atnf.csiro.au>
- No longer free old dentries in <devfs_mk_dir>.
- Free all dentries for a given entry when deleting inodes.
- v0.27
- 19980627 Richard Gooch <rgooch@atnf.csiro.au>
- Limit auto-device numbering to majors 128 to 239.
- v0.28
- 19980629 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed inode times persistence problem.
- v0.29
- 19980704 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed spelling in <devfs_readlink> debug.
- Fixed bug in <devfs_setup> parsing "dilookup".
- v0.30
- 19980705 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed devfs inode leak when manually recreating inodes.
- Fixed permission persistence problem when recreating inodes.
- v0.31
- 19980727 Richard Gooch <rgooch@atnf.csiro.au>
- Removed harmless "unused variable" compiler warning.
- Fixed modes for manually recreated device nodes.
- v0.32
- 19980728 Richard Gooch <rgooch@atnf.csiro.au>
- Added NULL devfs inode warning in <devfs_read_inode>.
- Force all inode nlink values to 1.
- v0.33
- 19980730 Richard Gooch <rgooch@atnf.csiro.au>
- Added "dimknod" boot option.
- Set inode nlink to 0 when freeing dentries.
- Fixed modes for manually recreated symlinks.
- v0.34
- 19980802 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in recreated directories and symlinks.
- v0.35
- 19980806 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in recreated device nodes.
- 19980807 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in currently unused <devfs_get_handle_from_inode>.
- Defined new <devfs_handle_t> type.
- Improved debugging when getting entries.
- Fixed bug where directories could be emptied.
- v0.36
- 19980809 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced dummy .epoch inode with .devfsd character device.
- 19980810 Richard Gooch <rgooch@atnf.csiro.au>
- Implemented devfsd protocol revision 0.
- v0.37
- 19980819 Richard Gooch <rgooch@atnf.csiro.au>
- Added soothing message to warning in <devfs_d_iput>.
- v0.38
- 19980829 Richard Gooch <rgooch@atnf.csiro.au>
- Use GCC extensions for structure initialisations.
- Implemented async open notification.
- Incremented devfsd protocol revision to 1.
- v0.39
- 19980908 Richard Gooch <rgooch@atnf.csiro.au>
- Moved async open notification to end of <devfs_open>.
- v0.40
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Prepended "/dev/" to module load request.
- Renamed <call_kerneld> to <call_kmod>.
- v0.41
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed typo "AYSNC" -> "ASYNC".
- v0.42
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Added open flag for files.
- v0.43
- 19980927 Richard Gooch <rgooch@atnf.csiro.au>
- Set i_blocks=0 and i_blksize=1024 in <devfs_read_inode>.
- v0.44
- 19981005 Richard Gooch <rgooch@atnf.csiro.au>
- Added test for empty <<name>> in <devfs_find_handle>.
- Renamed <generate_path> to <devfs_generate_path> and published.
- v0.45
- 19981006 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_fops>.
- v0.46
- 19981007 Richard Gooch <rgooch@atnf.csiro.au>
- Limit auto-device numbering to majors 144 to 239.
- v0.47
- 19981010 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_follow_link> for VFS change in 2.1.125.
- v0.48
- 19981022 Richard Gooch <rgooch@atnf.csiro.au>
- Created DEVFS_ FL_COMPAT flag.
- v0.49
- 19981023 Richard Gooch <rgooch@atnf.csiro.au>
- Created "nocompat" boot option.
- v0.50
- 19981025 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced "mount" boot option with "nomount".
- v0.51
- 19981110 Richard Gooch <rgooch@atnf.csiro.au>
- Created "only" boot option.
- v0.52
- 19981112 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_REMOVABLE flag.
- v0.53
- 19981114 Richard Gooch <rgooch@atnf.csiro.au>
- Only call <scan_dir_for_removable> on first call to
- <devfs_readdir>.
- v0.54
- 19981205 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_rmdir> for VFS change in 2.1.131.
- v0.55
- 19981218 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_mk_compat>.
- 19981220 Richard Gooch <rgooch@atnf.csiro.au>
- Check for partitions on removable media in <devfs_lookup>.
- v0.56
- 19990118 Richard Gooch <rgooch@atnf.csiro.au>
- Added support for registering regular files.
- Created <devfs_set_file_size>.
- Update devfs inodes from entries if not changed through FS.
- v0.57
- 19990124 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <devfs_fill_file> to only initialise temporary inodes.
- Trap for NULL fops in <devfs_register>.
- Return -ENODEV in <devfs_fill_file> for non-driver inodes.
- v0.58
- 19990126 Richard Gooch <rgooch@atnf.csiro.au>
- Switched from PATH_MAX to DEVFS_PATHLEN.
- v0.59
- 19990127 Richard Gooch <rgooch@atnf.csiro.au>
- Created "nottycompat" boot option.
- v0.60
- 19990318 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <devfsd_read> to not overrun event buffer.
- v0.61
- 19990329 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_auto_unregister>.
- v0.62
- 19990330 Richard Gooch <rgooch@atnf.csiro.au>
- Don't return unregistred entries in <devfs_find_handle>.
- Panic in <devfs_unregister> if entry unregistered.
- 19990401 Richard Gooch <rgooch@atnf.csiro.au>
- Don't panic in <devfs_auto_unregister> for duplicates.
- v0.63
- 19990402 Richard Gooch <rgooch@atnf.csiro.au>
- Don't unregister already unregistered entries in <unregister>.
- v0.64
- 19990510 Richard Gooch <rgooch@atnf.csiro.au>
- Disable warning messages when unable to read partition table for
- removable media.
- v0.65
- 19990512 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_lookup> for VFS change in 2.3.1-pre1.
- Created "oops-on-panic" boot option.
- Improved debugging in <devfs_register> and <devfs_unregister>.
- v0.66
- 19990519 Richard Gooch <rgooch@atnf.csiro.au>
- Added documentation for some functions.
- 19990525 Richard Gooch <rgooch@atnf.csiro.au>
- Removed "oops-on-panic" boot option: now always Oops.
- v0.67
- 19990531 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <devfs_register>.
- v0.68
- 19990604 Richard Gooch <rgooch@atnf.csiro.au>
- Added "diunlink" and "nokmod" boot options.
- Removed superfluous warning message in <devfs_d_iput>.
- v0.69
- 19990611 Richard Gooch <rgooch@atnf.csiro.au>
- Took account of change to <d_alloc_root>.
- v0.70
- 19990614 Richard Gooch <rgooch@atnf.csiro.au>
- Created separate event queue for each mounted devfs.
- Removed <devfs_invalidate_dcache>.
- Created new ioctl()s.
- Incremented devfsd protocol revision to 3.
- Fixed bug when re-creating directories: contents were lost.
- Block access to inodes until devfsd updates permissions.
- 19990615 Richard Gooch <rgooch@atnf.csiro.au>
- Support 2.2.x kernels.
- v0.71
- 19990623 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to sending process uid/gid to devfsd.
- Renamed <call_kmod> to <try_modload>.
- Added DEVFSD_NOTIFY_LOOKUP event.
- 19990624 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFSD_NOTIFY_CHANGE event.
- Incremented devfsd protocol revision to 4.
- v0.72
- 19990713 Richard Gooch <rgooch@atnf.csiro.au>
- Return EISDIR rather than EINVAL for read(2) on directories.
- v0.73
- 19990809 Richard Gooch <rgooch@atnf.csiro.au>
- Changed <devfs_setup> to new __init scheme.
- v0.74
- 19990901 Richard Gooch <rgooch@atnf.csiro.au>
- Changed remaining function declarations to new __init scheme.
- v0.75
- 19991013 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_info>, <devfs_set_info>,
- <devfs_get_first_child> and <devfs_get_next_sibling>.
- Added <<dir>> parameter to <devfs_register>, <devfs_mk_compat>,
- <devfs_mk_dir> and <devfs_find_handle>.
- Work sponsored by SGI.
- v0.76
- 19991017 Richard Gooch <rgooch@atnf.csiro.au>
- Allow multiple unregistrations.
- Work sponsored by SGI.
- v0.77
- 19991026 Richard Gooch <rgooch@atnf.csiro.au>
- Added major and minor number to devfsd protocol.
- Incremented devfsd protocol revision to 5.
- Work sponsored by SGI.
- v0.78
- 19991030 Richard Gooch <rgooch@atnf.csiro.au>
- Support info pointer for all devfs entry types.
- Added <<info>> parameter to <devfs_mk_dir> and
- <devfs_mk_symlink>.
- Work sponsored by SGI.
- v0.79
- 19991031 Richard Gooch <rgooch@atnf.csiro.au>
- Support "../" when searching devfs namespace.
- Work sponsored by SGI.
- v0.80
- 19991101 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_unregister_slave>.
- Work sponsored by SGI.
- v0.81
- 19991103 Richard Gooch <rgooch@atnf.csiro.au>
- Exported <devfs_get_parent>.
- Work sponsored by SGI.
- v0.82
- 19991104 Richard Gooch <rgooch@atnf.csiro.au>
- Removed unused <devfs_set_symlink_destination>.
- 19991105 Richard Gooch <rgooch@atnf.csiro.au>
- Do not hide entries from devfsd or children.
- Removed DEVFS_ FL_TTY_COMPAT flag.
- Removed "nottycompat" boot option.
- Removed <devfs_mk_compat>.
- Work sponsored by SGI.
- v0.83
- 19991107 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_WAIT flag.
- Work sponsored by SGI.
- v0.84
- 19991107 Richard Gooch <rgooch@atnf.csiro.au>
- Support new "disc" naming scheme in <get_removable_partition>.
- Allow NULL fops in <devfs_register>.
- Work sponsored by SGI.
- v0.85
- 19991110 Richard Gooch <rgooch@atnf.csiro.au>
- Fall back to major table if NULL fops given to <devfs_register>.
- Work sponsored by SGI.
- v0.86
- 19991204 Richard Gooch <rgooch@atnf.csiro.au>
- Support fifos when unregistering.
- Work sponsored by SGI.
- v0.87
- 19991209 Richard Gooch <rgooch@atnf.csiro.au>
- Removed obsolete DEVFS_ FL_COMPAT and DEVFS_ FL_TOLERANT flags.
- Work sponsored by SGI.
- v0.88
- 19991214 Richard Gooch <rgooch@atnf.csiro.au>
- Removed kmod support.
- Work sponsored by SGI.
- v0.89
- 19991216 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <get_vfs_inode>.
- Ensure dentries created by devfsd will be cleaned up.
- Work sponsored by SGI.
- v0.90
- 19991223 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_name>.
- Work sponsored by SGI.
- v0.91
- 20000203 Richard Gooch <rgooch@atnf.csiro.au>
- Ported to kernel 2.3.42.
- Removed <devfs_fill_file>.
- Work sponsored by SGI.
- v0.92
- 20000306 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_ FL_NO_PERSISTENCE flag.
- Removed unnecessary call to <update_devfs_inode_from_entry> in
- <devfs_readdir>.
- Work sponsored by SGI.
- v0.93
- 20000413 Richard Gooch <rgooch@atnf.csiro.au>
- Set inode->i_size to correct size for symlinks.
- 20000414 Richard Gooch <rgooch@atnf.csiro.au>
- Only give lookup() method to directories to comply with new VFS
- assumptions.
- Work sponsored by SGI.
- 20000415 Richard Gooch <rgooch@atnf.csiro.au>
- Remove unnecessary tests in symlink methods.
- Don't kill existing block ops in <devfs_read_inode>.
- Work sponsored by SGI.
- v0.94
- 20000424 Richard Gooch <rgooch@atnf.csiro.au>
- Don't create missing directories in <devfs_find_handle>.
- Work sponsored by SGI.
- v0.95
- 20000430 Richard Gooch <rgooch@atnf.csiro.au>
- Added CONFIG_DEVFS_MOUNT.
- Work sponsored by SGI.
- v0.96
- 20000608 Richard Gooch <rgooch@atnf.csiro.au>
- Disabled multi-mount capability (use VFS bindings instead).
- Work sponsored by SGI.
- v0.97
- 20000610 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to FS_SINGLE to disable multi-mounts.
- 20000612 Richard Gooch <rgooch@atnf.csiro.au>
- Removed module support.
- Removed multi-mount code.
- Removed compatibility macros: VFS has changed too much.
- Work sponsored by SGI.
- v0.98
- 20000614 Richard Gooch <rgooch@atnf.csiro.au>
- Merged devfs inode into devfs entry.
- Work sponsored by SGI.
- v0.99
- 20000619 Richard Gooch <rgooch@atnf.csiro.au>
- Removed dead code in <devfs_register> which used to call
- <free_dentries>.
- Work sponsored by SGI.
- v0.100
- 20000621 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <devfs_register>.
- Work sponsored by SGI.
- v0.101
- 20000622 Richard Gooch <rgooch@atnf.csiro.au>
- Simplified interface to <devfs_mk_symlink> and <devfs_mk_dir>.
- Simplified interface to <devfs_find_handle>.
- Work sponsored by SGI.
- v0.102
- 20010519 Richard Gooch <rgooch@atnf.csiro.au>
- Ensure <devfs_generate_path> terminates string for root entry.
- Exported <devfs_get_name> to modules.
- 20010520 Richard Gooch <rgooch@atnf.csiro.au>
- Make <devfs_mk_symlink> send events to devfsd.
- Cleaned up option processing in <devfs_setup>.
- 20010521 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in handling symlinks: could leak or cause Oops.
- 20010522 Richard Gooch <rgooch@atnf.csiro.au>
- Cleaned up directory handling by separating fops.
- v0.103
- 20010601 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed handling of inverted options in <devfs_setup>.
- v0.104
- 20010604 Richard Gooch <rgooch@atnf.csiro.au>
- Adjusted <try_modload> to account for <devfs_generate_path> fix.
- v0.105
- 20010617 Richard Gooch <rgooch@atnf.csiro.au>
- Answered question posed by Al Viro and removed his comments.
- Moved setting of registered flag after other fields are changed.
- Fixed race between <devfsd_close> and <devfsd_notify_one>.
- Global VFS changes added bogus BKL to <devfsd_close>: removed.
- Widened locking in <devfs_readlink> and <devfs_follow_link>.
- Replaced <devfsd_read> stack usage with <devfsd_ioctl> kmalloc.
- Simplified locking in <devfsd_ioctl> and fixed memory leak.
- v0.106
- 20010709 Richard Gooch <rgooch@atnf.csiro.au>
- Removed broken devnum allocation and use <devfs_alloc_devnum>.
- Fixed old devnum leak by calling new <devfs_dealloc_devnum>.
- v0.107
- 20010712 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_setup> which could hang boot process.
- v0.108
- 20010730 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFSD_NOTIFY_DELETE event.
- 20010801 Richard Gooch <rgooch@atnf.csiro.au>
- Removed #include <asm/segment.h>.
- v0.109
- 20010807 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed inode table races by removing it and using
- inode->u.generic_ip instead.
- Moved <devfs_read_inode> into <get_vfs_inode>.
- Moved <devfs_write_inode> into <devfs_notify_change>.
- v0.110
- 20010808 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed race in <devfs_do_symlink> for uni-processor.
- v0.111
- 20010818 Richard Gooch <rgooch@atnf.csiro.au>
- Removed remnant of multi-mount support in <devfs_mknod>.
- Removed unused DEVFS_FL_SHOW_UNREG flag.
- v0.112
- 20010820 Richard Gooch <rgooch@atnf.csiro.au>
- Removed nlink field from struct devfs_inode.
- v0.113
- 20010823 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced BKL with global rwsem to protect symlink data (quick
- and dirty hack).
- v0.114
- 20010827 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced global rwsem for symlink with per-link refcount.
- v0.115
- 20010919 Richard Gooch <rgooch@atnf.csiro.au>
- Set inode->i_mapping->a_ops for block nodes in <get_vfs_inode>.
- v0.116
- 20011008 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed overrun in <devfs_link> by removing function (not needed).
- 20011009 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed buffer underrun in <try_modload>.
- 20011029 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed race in <devfsd_ioctl> when setting event mask.
- 20011114 Richard Gooch <rgooch@atnf.csiro.au>
- First release of new locking code.
- v1.0
- 20011117 Richard Gooch <rgooch@atnf.csiro.au>
- Discard temporary buffer, now use "%s" for dentry names.
- 20011118 Richard Gooch <rgooch@atnf.csiro.au>
- Don't generate path in <try_modload>: use fake entry instead.
- Use "existing" directory in <_devfs_make_parent_for_leaf>.
- 20011122 Richard Gooch <rgooch@atnf.csiro.au>
- Use slab cache rather than fixed buffer for devfsd events.
- v1.1
- 20011125 Richard Gooch <rgooch@atnf.csiro.au>
- Send DEVFSD_NOTIFY_REGISTERED events in <devfs_mk_dir>.
- 20011127 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed locking bug in <devfs_d_revalidate_wait> due to typo.
- Do not send CREATE, CHANGE, ASYNC_OPEN or DELETE events from
- devfsd or children.
- v1.2
- 20011202 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfsd_read>: was dereferencing freed pointer.
- v1.3
- 20011203 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfsd_close>: was dereferencing freed pointer.
- Added process group check for devfsd privileges.
- v1.4
- 20011204 Richard Gooch <rgooch@atnf.csiro.au>
- Use SLAB_ATOMIC in <devfsd_notify_de> from <devfs_d_delete>.
- v1.5
- 20011211 Richard Gooch <rgooch@atnf.csiro.au>
- Return old entry in <devfs_mk_dir> for 2.4.x kernels.
- 20011212 Richard Gooch <rgooch@atnf.csiro.au>
- Increment refcount on module in <check_disc_changed>.
- 20011215 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_handle> and exported <devfs_put>.
- Increment refcount on module in <devfs_get_ops>.
- Created <devfs_put_ops>.
- v1.6
- 20011216 Richard Gooch <rgooch@atnf.csiro.au>
- Added poisoning to <devfs_put>.
- Improved debugging messages.
- v1.7
- 20011221 Richard Gooch <rgooch@atnf.csiro.au>
- Corrected (made useful) debugging message in <unregister>.
- Moved <kmem_cache_create> in <mount_devfs_fs> to <init_devfs_fs>
- 20011224 Richard Gooch <rgooch@atnf.csiro.au>
- Added magic number to guard against scribbling drivers.
- 20011226 Richard Gooch <rgooch@atnf.csiro.au>
- Only return old entry in <devfs_mk_dir> if a directory.
- Defined macros for error and debug messages.
- v1.8
- 20020113 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed (rare, old) race in <devfs_lookup>.
- v1.9
- 20020120 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed deadlock bug in <devfs_d_revalidate_wait>.
- Tag VFS deletable in <devfs_mk_symlink> if handle ignored.
- v1.10
- 20020129 Richard Gooch <rgooch@atnf.csiro.au>
- Added KERN_* to remaining messages.
- Cleaned up declaration of <stat_read>.
- v1.11
- 20020219 Richard Gooch <rgooch@atnf.csiro.au>
- Changed <devfs_rmdir> to allow later additions if not yet empty.
- v1.12
- 20020406 Richard Gooch <rgooch@atnf.csiro.au>
- Removed silently introduced calls to lock_kernel() and
- unlock_kernel() due to recent VFS locking changes. BKL isn't
- required in devfs.
- v1.13
- 20020428 Richard Gooch <rgooch@atnf.csiro.au>
- Removed 2.4.x compatibility code.
- v1.14
- 20020510 Richard Gooch <rgooch@atnf.csiro.au>
- Added BKL to <devfs_open> because drivers still need it.
- v1.15
- 20020512 Richard Gooch <rgooch@atnf.csiro.au>
- Protected <scan_dir_for_removable> and <get_removable_partition>
- from changing directory contents.
- v1.16
- 20020514 Richard Gooch <rgooch@atnf.csiro.au>
- Minor cleanup of <scan_dir_for_removable>.
- v1.17
- 20020721 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to ISO C structure field initialisers.
- Switch to set_current_state() and move before add_wait_queue().
- 20020722 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed devfs entry leak in <devfs_readdir> when *readdir fails.
- v1.18
- 20020725 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_find_and_unregister>.
- v1.19
- 20020728 Richard Gooch <rgooch@atnf.csiro.au>
- Removed deprecated <devfs_find_handle>.
- v1.20
- 20020820 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed module unload race in <devfs_open>.
- v1.21
- 20021013 Richard Gooch <rgooch@atnf.csiro.au>
- Removed DEVFS_ FL_AUTO_OWNER.
- Switched lingering structure field initialiser to ISO C.
- Added locking when updating FCB flags.
- v1.22
-*/
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/tty.h>
-#include <linux/timer.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/wait.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/devfs_fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/smp.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/namei.h>
-#include <linux/bitops.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/atomic.h>
-
-#define DEVFS_VERSION "2004-01-31"
-
-#define DEVFS_NAME "devfs"
-
-#define FIRST_INODE 1
-
-#define STRING_LENGTH 256
-#define FAKE_BLOCK_SIZE 1024
-#define POISON_PTR ( *(void **) poison_array )
-#define MAGIC_VALUE 0x327db823
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#define MODE_DIR (S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO)
-
-#define DEBUG_NONE 0x0000000
-#define DEBUG_MODULE_LOAD 0x0000001
-#define DEBUG_REGISTER 0x0000002
-#define DEBUG_UNREGISTER 0x0000004
-#define DEBUG_FREE 0x0000008
-#define DEBUG_SET_FLAGS 0x0000010
-#define DEBUG_S_READ 0x0000100 /* Break */
-#define DEBUG_I_LOOKUP 0x0001000 /* Break */
-#define DEBUG_I_CREATE 0x0002000
-#define DEBUG_I_GET 0x0004000
-#define DEBUG_I_CHANGE 0x0008000
-#define DEBUG_I_UNLINK 0x0010000
-#define DEBUG_I_RLINK 0x0020000
-#define DEBUG_I_FLINK 0x0040000
-#define DEBUG_I_MKNOD 0x0080000
-#define DEBUG_F_READDIR 0x0100000 /* Break */
-#define DEBUG_D_DELETE 0x1000000 /* Break */
-#define DEBUG_D_RELEASE 0x2000000
-#define DEBUG_D_IPUT 0x4000000
-#define DEBUG_ALL 0xfffffff
-#define DEBUG_DISABLED DEBUG_NONE
-
-#define OPTION_NONE 0x00
-#define OPTION_MOUNT 0x01
-
-#define PRINTK(format, args...) \
- {printk (KERN_ERR "%s" format, __FUNCTION__ , ## args);}
-
-#define OOPS(format, args...) \
- {printk (KERN_CRIT "%s" format, __FUNCTION__ , ## args); \
- printk ("Forcing Oops\n"); \
- BUG();}
-
-#ifdef CONFIG_DEVFS_DEBUG
-# define VERIFY_ENTRY(de) \
- {if ((de) && (de)->magic_number != MAGIC_VALUE) \
- OOPS ("(%p): bad magic value: %x\n", (de), (de)->magic_number);}
-# define WRITE_ENTRY_MAGIC(de,magic) (de)->magic_number = (magic)
-# define DPRINTK(flag, format, args...) \
- {if (devfs_debug & flag) \
- printk (KERN_INFO "%s" format, __FUNCTION__ , ## args);}
-#else
-# define VERIFY_ENTRY(de)
-# define WRITE_ENTRY_MAGIC(de,magic)
-# define DPRINTK(flag, format, args...)
-#endif
-
-typedef struct devfs_entry *devfs_handle_t;
-
-struct directory_type {
- rwlock_t lock; /* Lock for searching(R)/updating(W) */
- struct devfs_entry *first;
- struct devfs_entry *last;
- unsigned char no_more_additions:1;
-};
-
-struct symlink_type {
- unsigned int length; /* Not including the NULL-termimator */
- char *linkname; /* This is NULL-terminated */
-};
-
-struct devfs_inode { /* This structure is for "persistent" inode storage */
- struct dentry *dentry;
- struct timespec atime;
- struct timespec mtime;
- struct timespec ctime;
- unsigned int ino; /* Inode number as seen in the VFS */
- uid_t uid;
- gid_t gid;
-};
-
-struct devfs_entry {
-#ifdef CONFIG_DEVFS_DEBUG
- unsigned int magic_number;
-#endif
- void *info;
- atomic_t refcount; /* When this drops to zero, it's unused */
- union {
- struct directory_type dir;
- dev_t dev;
- struct symlink_type symlink;
- const char *name; /* Only used for (mode == 0) */
- } u;
- struct devfs_entry *prev; /* Previous entry in the parent directory */
- struct devfs_entry *next; /* Next entry in the parent directory */
- struct devfs_entry *parent; /* The parent directory */
- struct devfs_inode inode;
- umode_t mode;
- unsigned short namelen; /* I think 64k+ filenames are a way off... */
- unsigned char vfs:1; /* Whether the VFS may delete the entry */
- char name[1]; /* This is just a dummy: the allocated array
- is bigger. This is NULL-terminated */
-};
-
-/* The root of the device tree */
-static struct devfs_entry *root_entry;
-
-struct devfsd_buf_entry {
- struct devfs_entry *de; /* The name is generated with this */
- unsigned short type; /* The type of event */
- umode_t mode;
- uid_t uid;
- gid_t gid;
- struct devfsd_buf_entry *next;
-};
-
-struct fs_info { /* This structure is for the mounted devfs */
- struct super_block *sb;
- spinlock_t devfsd_buffer_lock; /* Lock when inserting/deleting events */
- struct devfsd_buf_entry *devfsd_first_event;
- struct devfsd_buf_entry *devfsd_last_event;
- volatile int devfsd_sleeping;
- volatile struct task_struct *devfsd_task;
- volatile pid_t devfsd_pgrp;
- volatile struct file *devfsd_file;
- struct devfsd_notify_struct *devfsd_info;
- volatile unsigned long devfsd_event_mask;
- atomic_t devfsd_overrun_count;
- wait_queue_head_t devfsd_wait_queue; /* Wake devfsd on input */
- wait_queue_head_t revalidate_wait_queue; /* Wake when devfsd sleeps */
-};
-
-static struct fs_info fs_info = {.devfsd_buffer_lock = SPIN_LOCK_UNLOCKED };
-static kmem_cache_t *devfsd_buf_cache;
-#ifdef CONFIG_DEVFS_DEBUG
-static unsigned int devfs_debug_init __initdata = DEBUG_NONE;
-static unsigned int devfs_debug = DEBUG_NONE;
-static DEFINE_SPINLOCK(stat_lock);
-static unsigned int stat_num_entries;
-static unsigned int stat_num_bytes;
-#endif
-static unsigned char poison_array[8] =
- { 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a };
-
-#ifdef CONFIG_DEVFS_MOUNT
-static unsigned int boot_options = OPTION_MOUNT;
-#else
-static unsigned int boot_options = OPTION_NONE;
-#endif
-
-/* Forward function declarations */
-static devfs_handle_t _devfs_walk_path(struct devfs_entry *dir,
- const char *name, int namelen,
- int traverse_symlink);
-static ssize_t devfsd_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos);
-static int devfsd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-static int devfsd_close(struct inode *inode, struct file *file);
-#ifdef CONFIG_DEVFS_DEBUG
-static ssize_t stat_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos);
-static const struct file_operations stat_fops = {
- .open = nonseekable_open,
- .read = stat_read,
-};
-#endif
-
-/* Devfs daemon file operations */
-static const struct file_operations devfsd_fops = {
- .open = nonseekable_open,
- .read = devfsd_read,
- .ioctl = devfsd_ioctl,
- .release = devfsd_close,
-};
-
-/* Support functions follow */
-
-/**
- * devfs_get - Get a reference to a devfs entry.
- * @de: The devfs entry.
- */
-
-static struct devfs_entry *devfs_get(struct devfs_entry *de)
-{
- VERIFY_ENTRY(de);
- if (de)
- atomic_inc(&de->refcount);
- return de;
-} /* End Function devfs_get */
-
-/**
- * devfs_put - Put (release) a reference to a devfs entry.
- * @de: The handle to the devfs entry.
- */
-
-static void devfs_put(devfs_handle_t de)
-{
- if (!de)
- return;
- VERIFY_ENTRY(de);
- if (de->info == POISON_PTR)
- OOPS("(%p): poisoned pointer\n", de);
- if (!atomic_dec_and_test(&de->refcount))
- return;
- if (de == root_entry)
- OOPS("(%p): root entry being freed\n", de);
- DPRINTK(DEBUG_FREE, "(%s): de: %p, parent: %p \"%s\"\n",
- de->name, de, de->parent,
- de->parent ? de->parent->name : "no parent");
- if (S_ISLNK(de->mode))
- kfree(de->u.symlink.linkname);
- WRITE_ENTRY_MAGIC(de, 0);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- --stat_num_entries;
- stat_num_bytes -= sizeof *de + de->namelen;
- if (S_ISLNK(de->mode))
- stat_num_bytes -= de->u.symlink.length + 1;
- spin_unlock(&stat_lock);
-#endif
- de->info = POISON_PTR;
- kfree(de);
-} /* End Function devfs_put */
-
-/**
- * _devfs_search_dir - Search for a devfs entry in a directory.
- * @dir: The directory to search.
- * @name: The name of the entry to search for.
- * @namelen: The number of characters in @name.
- *
- * Search for a devfs entry in a directory and returns a pointer to the entry
- * on success, else %NULL. The directory must be locked already.
- * An implicit devfs_get() is performed on the returned entry.
- */
-
-static struct devfs_entry *_devfs_search_dir(struct devfs_entry *dir,
- const char *name,
- unsigned int namelen)
-{
- struct devfs_entry *curr;
-
- if (!S_ISDIR(dir->mode)) {
- PRINTK("(%s): not a directory\n", dir->name);
- return NULL;
- }
- for (curr = dir->u.dir.first; curr != NULL; curr = curr->next) {
- if (curr->namelen != namelen)
- continue;
- if (memcmp(curr->name, name, namelen) == 0)
- break;
- /* Not found: try the next one */
- }
- return devfs_get(curr);
-} /* End Function _devfs_search_dir */
-
-/**
- * _devfs_alloc_entry - Allocate a devfs entry.
- * @name: the name of the entry
- * @namelen: the number of characters in @name
- * @mode: the mode for the entry
- *
- * Allocate a devfs entry and returns a pointer to the entry on success, else
- * %NULL.
- */
-
-static struct devfs_entry *_devfs_alloc_entry(const char *name,
- unsigned int namelen,
- umode_t mode)
-{
- struct devfs_entry *new;
- static unsigned long inode_counter = FIRST_INODE;
- static DEFINE_SPINLOCK(counter_lock);
-
- if (name && (namelen < 1))
- namelen = strlen(name);
- if ((new = kmalloc(sizeof *new + namelen, GFP_KERNEL)) == NULL)
- return NULL;
- memset(new, 0, sizeof *new + namelen); /* Will set '\0' on name */
- new->mode = mode;
- if (S_ISDIR(mode))
- rwlock_init(&new->u.dir.lock);
- atomic_set(&new->refcount, 1);
- spin_lock(&counter_lock);
- new->inode.ino = inode_counter++;
- spin_unlock(&counter_lock);
- if (name)
- memcpy(new->name, name, namelen);
- new->namelen = namelen;
- WRITE_ENTRY_MAGIC(new, MAGIC_VALUE);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- ++stat_num_entries;
- stat_num_bytes += sizeof *new + namelen;
- spin_unlock(&stat_lock);
-#endif
- return new;
-} /* End Function _devfs_alloc_entry */
-
-/**
- * _devfs_append_entry - Append a devfs entry to a directory's child list.
- * @dir: The directory to add to.
- * @de: The devfs entry to append.
- * @old_de: If an existing entry exists, it will be written here. This may
- * be %NULL. An implicit devfs_get() is performed on this entry.
- *
- * Append a devfs entry to a directory's list of children, checking first to
- * see if an entry of the same name exists. The directory will be locked.
- * The value 0 is returned on success, else a negative error code.
- * On failure, an implicit devfs_put() is performed on %de.
- */
-
-static int _devfs_append_entry(devfs_handle_t dir, devfs_handle_t de,
- devfs_handle_t * old_de)
-{
- int retval;
-
- if (old_de)
- *old_de = NULL;
- if (!S_ISDIR(dir->mode)) {
- PRINTK("(%s): dir: \"%s\" is not a directory\n", de->name,
- dir->name);
- devfs_put(de);
- return -ENOTDIR;
- }
- write_lock(&dir->u.dir.lock);
- if (dir->u.dir.no_more_additions)
- retval = -ENOENT;
- else {
- struct devfs_entry *old;
-
- old = _devfs_search_dir(dir, de->name, de->namelen);
- if (old_de)
- *old_de = old;
- else
- devfs_put(old);
- if (old == NULL) {
- de->parent = dir;
- de->prev = dir->u.dir.last;
- /* Append to the directory's list of children */
- if (dir->u.dir.first == NULL)
- dir->u.dir.first = de;
- else
- dir->u.dir.last->next = de;
- dir->u.dir.last = de;
- retval = 0;
- } else
- retval = -EEXIST;
- }
- write_unlock(&dir->u.dir.lock);
- if (retval)
- devfs_put(de);
- return retval;
-} /* End Function _devfs_append_entry */
-
-/**
- * _devfs_get_root_entry - Get the root devfs entry.
- *
- * Returns the root devfs entry on success, else %NULL.
- *
- * TODO it must be called asynchronously due to the fact
- * that devfs is initialized relatively late. Proper way
- * is to remove module_init from init_devfs_fs and manually
- * call it early enough during system init
- */
-
-static struct devfs_entry *_devfs_get_root_entry(void)
-{
- struct devfs_entry *new;
- static DEFINE_SPINLOCK(root_lock);
-
- if (root_entry)
- return root_entry;
-
- new = _devfs_alloc_entry(NULL, 0, MODE_DIR);
- if (new == NULL)
- return NULL;
-
- spin_lock(&root_lock);
- if (root_entry) {
- spin_unlock(&root_lock);
- devfs_put(new);
- return root_entry;
- }
- root_entry = new;
- spin_unlock(&root_lock);
-
- return root_entry;
-} /* End Function _devfs_get_root_entry */
-
-/**
- * _devfs_descend - Descend down a tree using the next component name.
- * @dir: The directory to search.
- * @name: The component name to search for.
- * @namelen: The length of %name.
- * @next_pos: The position of the next '/' or '\0' is written here.
- *
- * Descend into a directory, searching for a component. This function forms
- * the core of a tree-walking algorithm. The directory will be locked.
- * The devfs entry corresponding to the component is returned. If there is
- * no matching entry, %NULL is returned.
- * An implicit devfs_get() is performed on the returned entry.
- */
-
-static struct devfs_entry *_devfs_descend(struct devfs_entry *dir,
- const char *name, int namelen,
- int *next_pos)
-{
- const char *stop, *ptr;
- struct devfs_entry *entry;
-
- if ((namelen >= 3) && (strncmp(name, "../", 3) == 0)) { /* Special-case going to parent directory */
- *next_pos = 3;
- return devfs_get(dir->parent);
- }
- stop = name + namelen;
- /* Search for a possible '/' */
- for (ptr = name; (ptr < stop) && (*ptr != '/'); ++ptr) ;
- *next_pos = ptr - name;
- read_lock(&dir->u.dir.lock);
- entry = _devfs_search_dir(dir, name, *next_pos);
- read_unlock(&dir->u.dir.lock);
- return entry;
-} /* End Function _devfs_descend */
-
-static devfs_handle_t _devfs_make_parent_for_leaf(struct devfs_entry *dir,
- const char *name,
- int namelen, int *leaf_pos)
-{
- int next_pos = 0;
-
- if (dir == NULL)
- dir = _devfs_get_root_entry();
- if (dir == NULL)
- return NULL;
- devfs_get(dir);
- /* Search for possible trailing component and ignore it */
- for (--namelen; (namelen > 0) && (name[namelen] != '/'); --namelen) ;
- *leaf_pos = (name[namelen] == '/') ? (namelen + 1) : 0;
- for (; namelen > 0; name += next_pos, namelen -= next_pos) {
- struct devfs_entry *de, *old = NULL;
-
- if ((de =
- _devfs_descend(dir, name, namelen, &next_pos)) == NULL) {
- de = _devfs_alloc_entry(name, next_pos, MODE_DIR);
- devfs_get(de);
- if (!de || _devfs_append_entry(dir, de, &old)) {
- devfs_put(de);
- if (!old || !S_ISDIR(old->mode)) {
- devfs_put(old);
- devfs_put(dir);
- return NULL;
- }
- de = old; /* Use the existing directory */
- }
- }
- if (de == dir->parent) {
- devfs_put(dir);
- devfs_put(de);
- return NULL;
- }
- devfs_put(dir);
- dir = de;
- if (name[next_pos] == '/')
- ++next_pos;
- }
- return dir;
-} /* End Function _devfs_make_parent_for_leaf */
-
-static devfs_handle_t _devfs_prepare_leaf(devfs_handle_t * dir,
- const char *name, umode_t mode)
-{
- int namelen, leaf_pos;
- struct devfs_entry *de;
-
- namelen = strlen(name);
- if ((*dir = _devfs_make_parent_for_leaf(*dir, name, namelen,
- &leaf_pos)) == NULL) {
- PRINTK("(%s): could not create parent path\n", name);
- return NULL;
- }
- if ((de = _devfs_alloc_entry(name + leaf_pos, namelen - leaf_pos, mode))
- == NULL) {
- PRINTK("(%s): could not allocate entry\n", name);
- devfs_put(*dir);
- return NULL;
- }
- return de;
-} /* End Function _devfs_prepare_leaf */
-
-static devfs_handle_t _devfs_walk_path(struct devfs_entry *dir,
- const char *name, int namelen,
- int traverse_symlink)
-{
- int next_pos = 0;
-
- if (dir == NULL)
- dir = _devfs_get_root_entry();
- if (dir == NULL)
- return NULL;
- devfs_get(dir);
- for (; namelen > 0; name += next_pos, namelen -= next_pos) {
- struct devfs_entry *de, *link;
-
- if (!S_ISDIR(dir->mode)) {
- devfs_put(dir);
- return NULL;
- }
-
- if ((de =
- _devfs_descend(dir, name, namelen, &next_pos)) == NULL) {
- devfs_put(dir);
- return NULL;
- }
- if (S_ISLNK(de->mode) && traverse_symlink) { /* Need to follow the link: this is a stack chomper */
- /* FIXME what if it puts outside of mounted tree? */
- link = _devfs_walk_path(dir, de->u.symlink.linkname,
- de->u.symlink.length, TRUE);
- devfs_put(de);
- if (!link) {
- devfs_put(dir);
- return NULL;
- }
- de = link;
- }
- devfs_put(dir);
- dir = de;
- if (name[next_pos] == '/')
- ++next_pos;
- }
- return dir;
-} /* End Function _devfs_walk_path */
-
-/**
- * _devfs_find_entry - Find a devfs entry.
- * @dir: The handle to the parent devfs directory entry. If this is %NULL the
- * name is relative to the root of the devfs.
- * @name: The name of the entry. This may be %NULL.
- * @traverse_symlink: If %TRUE then symbolic links are traversed.
- *
- * Returns the devfs_entry pointer on success, else %NULL. An implicit
- * devfs_get() is performed.
- */
-
-static struct devfs_entry *_devfs_find_entry(devfs_handle_t dir,
- const char *name,
- int traverse_symlink)
-{
- unsigned int namelen = strlen(name);
-
- if (name[0] == '/') {
- /* Skip leading pathname component */
- if (namelen < 2) {
- PRINTK("(%s): too short\n", name);
- return NULL;
- }
- for (++name, --namelen; (*name != '/') && (namelen > 0);
- ++name, --namelen) ;
- if (namelen < 2) {
- PRINTK("(%s): too short\n", name);
- return NULL;
- }
- ++name;
- --namelen;
- }
- return _devfs_walk_path(dir, name, namelen, traverse_symlink);
-} /* End Function _devfs_find_entry */
-
-static struct devfs_entry *get_devfs_entry_from_vfs_inode(struct inode *inode)
-{
- if (inode == NULL)
- return NULL;
- VERIFY_ENTRY((struct devfs_entry *)inode->u.generic_ip);
- return inode->u.generic_ip;
-} /* End Function get_devfs_entry_from_vfs_inode */
-
-/**
- * free_dentry - Free the dentry for a device entry and invalidate inode.
- * @de: The entry.
- *
- * This must only be called after the entry has been unhooked from its
- * parent directory.
- */
-
-static void free_dentry(struct devfs_entry *de)
-{
- struct dentry *dentry = de->inode.dentry;
-
- if (!dentry)
- return;
- spin_lock(&dcache_lock);
- dget_locked(dentry);
- spin_unlock(&dcache_lock);
- /* Forcefully remove the inode */
- if (dentry->d_inode != NULL)
- dentry->d_inode->i_nlink = 0;
- d_drop(dentry);
- dput(dentry);
-} /* End Function free_dentry */
-
-/**
- * is_devfsd_or_child - Test if the current process is devfsd or one of its children.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if devfsd or child, else %FALSE.
- */
-
-static int is_devfsd_or_child(struct fs_info *fs_info)
-{
- struct task_struct *p = current;
-
- if (p == fs_info->devfsd_task)
- return (TRUE);
- if (process_group(p) == fs_info->devfsd_pgrp)
- return (TRUE);
- read_lock(&tasklist_lock);
- for (; p != &init_task; p = p->real_parent) {
- if (p == fs_info->devfsd_task) {
- read_unlock(&tasklist_lock);
- return (TRUE);
- }
- }
- read_unlock(&tasklist_lock);
- return (FALSE);
-} /* End Function is_devfsd_or_child */
-
-/**
- * devfsd_queue_empty - Test if devfsd has work pending in its event queue.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if the queue is empty, else %FALSE.
- */
-
-static inline int devfsd_queue_empty(struct fs_info *fs_info)
-{
- return (fs_info->devfsd_last_event) ? FALSE : TRUE;
-} /* End Function devfsd_queue_empty */
-
-/**
- * wait_for_devfsd_finished - Wait for devfsd to finish processing its event queue.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if no more waiting will be required, else %FALSE.
- */
-
-static int wait_for_devfsd_finished(struct fs_info *fs_info)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- if (fs_info->devfsd_task == NULL)
- return (TRUE);
- if (devfsd_queue_empty(fs_info) && fs_info->devfsd_sleeping)
- return TRUE;
- if (is_devfsd_or_child(fs_info))
- return (FALSE);
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&fs_info->revalidate_wait_queue, &wait);
- if (!devfsd_queue_empty(fs_info) || !fs_info->devfsd_sleeping)
- if (fs_info->devfsd_task)
- schedule();
- remove_wait_queue(&fs_info->revalidate_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- return (TRUE);
-} /* End Function wait_for_devfsd_finished */
-
-/**
- * devfsd_notify_de - Notify the devfsd daemon of a change.
- * @de: The devfs entry that has changed. This and all parent entries will
- * have their reference counts incremented if the event was queued.
- * @type: The type of change.
- * @mode: The mode of the entry.
- * @uid: The user ID.
- * @gid: The group ID.
- * @fs_info: The filesystem info.
- *
- * Returns %TRUE if an event was queued and devfsd woken up, else %FALSE.
- */
-
-static int devfsd_notify_de(struct devfs_entry *de,
- unsigned short type, umode_t mode,
- uid_t uid, gid_t gid, struct fs_info *fs_info)
-{
- struct devfsd_buf_entry *entry;
- struct devfs_entry *curr;
-
- if (!(fs_info->devfsd_event_mask & (1 << type)))
- return (FALSE);
- if ((entry = kmem_cache_alloc(devfsd_buf_cache, SLAB_KERNEL)) == NULL) {
- atomic_inc(&fs_info->devfsd_overrun_count);
- return (FALSE);
- }
- for (curr = de; curr != NULL; curr = curr->parent)
- devfs_get(curr);
- entry->de = de;
- entry->type = type;
- entry->mode = mode;
- entry->uid = uid;
- entry->gid = gid;
- entry->next = NULL;
- spin_lock(&fs_info->devfsd_buffer_lock);
- if (!fs_info->devfsd_first_event)
- fs_info->devfsd_first_event = entry;
- if (fs_info->devfsd_last_event)
- fs_info->devfsd_last_event->next = entry;
- fs_info->devfsd_last_event = entry;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- wake_up_interruptible(&fs_info->devfsd_wait_queue);
- return (TRUE);
-} /* End Function devfsd_notify_de */
-
-/**
- * devfsd_notify - Notify the devfsd daemon of a change.
- * @de: The devfs entry that has changed.
- * @type: The type of change event.
- * @wait: If TRUE, the function waits for the daemon to finish processing
- * the event.
- */
-
-static void devfsd_notify(struct devfs_entry *de, unsigned short type)
-{
- devfsd_notify_de(de, type, de->mode, current->euid,
- current->egid, &fs_info);
-}
-
-static int devfs_mk_dev(dev_t dev, umode_t mode, const char *fmt, va_list args)
-{
- struct devfs_entry *dir = NULL, *de;
- char buf[64];
- int error, n;
-
- n = vsnprintf(buf, sizeof(buf), fmt, args);
- if (n >= sizeof(buf) || !buf[0]) {
- printk(KERN_WARNING "%s: invalid format string %s\n",
- __FUNCTION__, fmt);
- return -EINVAL;
- }
-
- de = _devfs_prepare_leaf(&dir, buf, mode);
- if (!de) {
- printk(KERN_WARNING "%s: could not prepare leaf for %s\n",
- __FUNCTION__, buf);
- return -ENOMEM; /* could be more accurate... */
- }
-
- de->u.dev = dev;
-
- error = _devfs_append_entry(dir, de, NULL);
- if (error) {
- printk(KERN_WARNING "%s: could not append to parent for %s\n",
- __FUNCTION__, buf);
- goto out;
- }
-
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
- out:
- devfs_put(dir);
- return error;
-}
-
-int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- va_list args;
-
- if (!S_ISBLK(mode)) {
- printk(KERN_WARNING "%s: invalide mode (%u) for %s\n",
- __FUNCTION__, mode, fmt);
- return -EINVAL;
- }
-
- va_start(args, fmt);
- return devfs_mk_dev(dev, mode, fmt, args);
-}
-
-EXPORT_SYMBOL(devfs_mk_bdev);
-
-int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- va_list args;
-
- if (!S_ISCHR(mode)) {
- printk(KERN_WARNING "%s: invalide mode (%u) for %s\n",
- __FUNCTION__, mode, fmt);
- return -EINVAL;
- }
-
- va_start(args, fmt);
- return devfs_mk_dev(dev, mode, fmt, args);
-}
-
-EXPORT_SYMBOL(devfs_mk_cdev);
-
-/**
- * _devfs_unhook - Unhook a device entry from its parents list
- * @de: The entry to unhook.
- *
- * Returns %TRUE if the entry was unhooked, else %FALSE if it was
- * previously unhooked.
- * The caller must have a write lock on the parent directory.
- */
-
-static int _devfs_unhook(struct devfs_entry *de)
-{
- struct devfs_entry *parent;
-
- if (!de || (de->prev == de))
- return FALSE;
- parent = de->parent;
- if (de->prev == NULL)
- parent->u.dir.first = de->next;
- else
- de->prev->next = de->next;
- if (de->next == NULL)
- parent->u.dir.last = de->prev;
- else
- de->next->prev = de->prev;
- de->prev = de; /* Indicate we're unhooked */
- de->next = NULL; /* Force early termination for <devfs_readdir> */
- return TRUE;
-} /* End Function _devfs_unhook */
-
-/**
- * _devfs_unregister - Unregister a device entry from its parent.
- * @dir: The parent directory.
- * @de: The entry to unregister.
- *
- * The caller must have a write lock on the parent directory, which is
- * unlocked by this function.
- */
-
-static void _devfs_unregister(struct devfs_entry *dir, struct devfs_entry *de)
-{
- int unhooked = _devfs_unhook(de);
-
- write_unlock(&dir->u.dir.lock);
- if (!unhooked)
- return;
- devfs_get(dir);
- devfsd_notify(de, DEVFSD_NOTIFY_UNREGISTERED);
- free_dentry(de);
- devfs_put(dir);
- if (!S_ISDIR(de->mode))
- return;
- while (TRUE) { /* Recursively unregister: this is a stack chomper */
- struct devfs_entry *child;
-
- write_lock(&de->u.dir.lock);
- de->u.dir.no_more_additions = TRUE;
- child = de->u.dir.first;
- VERIFY_ENTRY(child);
- _devfs_unregister(de, child);
- if (!child)
- break;
- DPRINTK(DEBUG_UNREGISTER, "(%s): child: %p refcount: %d\n",
- child->name, child, atomic_read(&child->refcount));
- devfs_put(child);
- }
-} /* End Function _devfs_unregister */
-
-static int devfs_do_symlink(devfs_handle_t dir, const char *name,
- const char *link, devfs_handle_t * handle)
-{
- int err;
- unsigned int linklength;
- char *newlink;
- struct devfs_entry *de;
-
- if (handle != NULL)
- *handle = NULL;
- if (name == NULL) {
- PRINTK("(): NULL name pointer\n");
- return -EINVAL;
- }
- if (link == NULL) {
- PRINTK("(%s): NULL link pointer\n", name);
- return -EINVAL;
- }
- linklength = strlen(link);
- if ((newlink = kmalloc(linklength + 1, GFP_KERNEL)) == NULL)
- return -ENOMEM;
- memcpy(newlink, link, linklength);
- newlink[linklength] = '\0';
- if ((de = _devfs_prepare_leaf(&dir, name, S_IFLNK | S_IRUGO | S_IXUGO))
- == NULL) {
- PRINTK("(%s): could not prepare leaf\n", name);
- kfree(newlink);
- return -ENOTDIR;
- }
- de->info = NULL;
- de->u.symlink.linkname = newlink;
- de->u.symlink.length = linklength;
- if ((err = _devfs_append_entry(dir, de, NULL)) != 0) {
- PRINTK("(%s): could not append to parent, err: %d\n", name,
- err);
- devfs_put(dir);
- return err;
- }
- devfs_put(dir);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- stat_num_bytes += linklength + 1;
- spin_unlock(&stat_lock);
-#endif
- if (handle != NULL)
- *handle = de;
- return 0;
-} /* End Function devfs_do_symlink */
-
-/**
- * devfs_mk_symlink Create a symbolic link in the devfs namespace.
- * @from: The name of the entry.
- * @to: Name of the destination
- *
- * Returns 0 on success, else a negative error code is returned.
- */
-
-int devfs_mk_symlink(const char *from, const char *to)
-{
- devfs_handle_t de;
- int err;
-
- err = devfs_do_symlink(NULL, from, to, &de);
- if (!err) {
- de->vfs = TRUE;
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
- }
-
- return err;
-}
-
-/**
- * devfs_mk_dir - Create a directory in the devfs namespace.
- * new name is relative to the root of the devfs.
- * @fmt: The name of the entry.
- *
- * Use of this function is optional. The devfs_register() function
- * will automatically create intermediate directories as needed. This function
- * is provided for efficiency reasons, as it provides a handle to a directory.
- * On failure %NULL is returned.
- */
-
-int devfs_mk_dir(const char *fmt, ...)
-{
- struct devfs_entry *dir = NULL, *de = NULL, *old;
- char buf[64];
- va_list args;
- int error, n;
-
- va_start(args, fmt);
- n = vsnprintf(buf, 64, fmt, args);
- if (n >= 64 || !buf[0]) {
- printk(KERN_WARNING "%s: invalid argument.", __FUNCTION__);
- return -EINVAL;
- }
-
- de = _devfs_prepare_leaf(&dir, buf, MODE_DIR);
- if (!de) {
- PRINTK("(%s): could not prepare leaf\n", buf);
- return -EINVAL;
- }
-
- error = _devfs_append_entry(dir, de, &old);
- if (error == -EEXIST && S_ISDIR(old->mode)) {
- /*
- * devfs_mk_dir() of an already-existing directory will
- * return success.
- */
- error = 0;
- goto out_put;
- } else if (error) {
- PRINTK("(%s): could not append to dir: %p \"%s\"\n",
- buf, dir, dir->name);
- devfs_put(old);
- goto out_put;
- }
-
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
-
- out_put:
- devfs_put(dir);
- return error;
-}
-
-void devfs_remove(const char *fmt, ...)
-{
- char buf[64];
- va_list args;
- int n;
-
- va_start(args, fmt);
- n = vsnprintf(buf, sizeof(buf), fmt, args);
- if (n < sizeof(buf) && buf[0]) {
- devfs_handle_t de = _devfs_find_entry(NULL, buf, 0);
-
- if (!de) {
- printk(KERN_ERR "%s: %s not found, cannot remove\n",
- __FUNCTION__, buf);
- dump_stack();
- return;
- }
-
- write_lock(&de->parent->u.dir.lock);
- _devfs_unregister(de->parent, de);
- devfs_put(de);
- devfs_put(de);
- }
-}
-
-/**
- * devfs_generate_path - Generate a pathname for an entry, relative to the devfs root.
- * @de: The devfs entry.
- * @path: The buffer to write the pathname to. The pathname and '\0'
- * terminator will be written at the end of the buffer.
- * @buflen: The length of the buffer.
- *
- * Returns the offset in the buffer where the pathname starts on success,
- * else a negative error code.
- */
-
-static int devfs_generate_path(devfs_handle_t de, char *path, int buflen)
-{
- int pos;
-#define NAMEOF(de) ( (de)->mode ? (de)->name : (de)->u.name )
-
- if (de == NULL)
- return -EINVAL;
- VERIFY_ENTRY(de);
- if (de->namelen >= buflen)
- return -ENAMETOOLONG; /* Must be first */
- path[buflen - 1] = '\0';
- if (de->parent == NULL)
- return buflen - 1; /* Don't prepend root */
- pos = buflen - de->namelen - 1;
- memcpy(path + pos, NAMEOF(de), de->namelen);
- for (de = de->parent; de->parent != NULL; de = de->parent) {
- if (pos - de->namelen - 1 < 0)
- return -ENAMETOOLONG;
- path[--pos] = '/';
- pos -= de->namelen;
- memcpy(path + pos, NAMEOF(de), de->namelen);
- }
- return pos;
-} /* End Function devfs_generate_path */
-
-/**
- * devfs_setup - Process kernel boot options.
- * @str: The boot options after the "devfs=".
- */
-
-static int __init devfs_setup(char *str)
-{
- static struct {
- char *name;
- unsigned int mask;
- unsigned int *opt;
- } devfs_options_tab[] __initdata = {
-#ifdef CONFIG_DEVFS_DEBUG
- {
- "dall", DEBUG_ALL, &devfs_debug_init}, {
- "dmod", DEBUG_MODULE_LOAD, &devfs_debug_init}, {
- "dreg", DEBUG_REGISTER, &devfs_debug_init}, {
- "dunreg", DEBUG_UNREGISTER, &devfs_debug_init}, {
- "dfree", DEBUG_FREE, &devfs_debug_init}, {
- "diget", DEBUG_I_GET, &devfs_debug_init}, {
- "dchange", DEBUG_SET_FLAGS, &devfs_debug_init}, {
- "dsread", DEBUG_S_READ, &devfs_debug_init}, {
- "dichange", DEBUG_I_CHANGE, &devfs_debug_init}, {
- "dimknod", DEBUG_I_MKNOD, &devfs_debug_init}, {
- "dilookup", DEBUG_I_LOOKUP, &devfs_debug_init}, {
- "diunlink", DEBUG_I_UNLINK, &devfs_debug_init},
-#endif /* CONFIG_DEVFS_DEBUG */
- {
- "mount", OPTION_MOUNT, &boot_options}, {
- NULL, 0, NULL}
- };
-
- while ((*str != '\0') && !isspace(*str)) {
- int i, found = 0, invert = 0;
-
- if (strncmp(str, "no", 2) == 0) {
- invert = 1;
- str += 2;
- }
- for (i = 0; devfs_options_tab[i].name != NULL; i++) {
- int len = strlen(devfs_options_tab[i].name);
-
- if (strncmp(str, devfs_options_tab[i].name, len) == 0) {
- if (invert)
- *devfs_options_tab[i].opt &=
- ~devfs_options_tab[i].mask;
- else
- *devfs_options_tab[i].opt |=
- devfs_options_tab[i].mask;
- str += len;
- found = 1;
- break;
- }
- }
- if (!found)
- return 0; /* No match */
- if (*str != ',')
- return 0; /* No more options */
- ++str;
- }
- return 1;
-} /* End Function devfs_setup */
-
-__setup("devfs=", devfs_setup);
-
-EXPORT_SYMBOL(devfs_mk_dir);
-EXPORT_SYMBOL(devfs_remove);
-
-/**
- * try_modload - Notify devfsd of an inode lookup by a non-devfsd process.
- * @parent: The parent devfs entry.
- * @fs_info: The filesystem info.
- * @name: The device name.
- * @namelen: The number of characters in @name.
- * @buf: A working area that will be used. This must not go out of scope
- * until devfsd is idle again.
- *
- * Returns 0 on success (event was queued), else a negative error code.
- */
-
-static int try_modload(struct devfs_entry *parent, struct fs_info *fs_info,
- const char *name, unsigned namelen,
- struct devfs_entry *buf)
-{
- if (!(fs_info->devfsd_event_mask & (1 << DEVFSD_NOTIFY_LOOKUP)))
- return -ENOENT;
- if (is_devfsd_or_child(fs_info))
- return -ENOENT;
- memset(buf, 0, sizeof *buf);
- atomic_set(&buf->refcount, 1);
- buf->parent = parent;
- buf->namelen = namelen;
- buf->u.name = name;
- WRITE_ENTRY_MAGIC(buf, MAGIC_VALUE);
- if (!devfsd_notify_de(buf, DEVFSD_NOTIFY_LOOKUP, 0,
- current->euid, current->egid, fs_info))
- return -ENOENT;
- /* Possible success: event has been queued */
- return 0;
-} /* End Function try_modload */
-
-/* Superblock operations follow */
-
-static struct inode_operations devfs_iops;
-static struct inode_operations devfs_dir_iops;
-static const struct file_operations devfs_fops;
-static const struct file_operations devfs_dir_fops;
-static struct inode_operations devfs_symlink_iops;
-
-static int devfs_notify_change(struct dentry *dentry, struct iattr *iattr)
-{
- int retval;
- struct devfs_entry *de;
- struct inode *inode = dentry->d_inode;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- if (de == NULL)
- return -ENODEV;
- retval = inode_change_ok(inode, iattr);
- if (retval != 0)
- return retval;
- retval = inode_setattr(inode, iattr);
- if (retval != 0)
- return retval;
- DPRINTK(DEBUG_I_CHANGE, "(%d): VFS inode: %p devfs_entry: %p\n",
- (int)inode->i_ino, inode, de);
- DPRINTK(DEBUG_I_CHANGE, "(): mode: 0%o uid: %d gid: %d\n",
- (int)inode->i_mode, (int)inode->i_uid, (int)inode->i_gid);
- /* Inode is not on hash chains, thus must save permissions here rather
- than in a write_inode() method */
- de->mode = inode->i_mode;
- de->inode.uid = inode->i_uid;
- de->inode.gid = inode->i_gid;
- de->inode.atime = inode->i_atime;
- de->inode.mtime = inode->i_mtime;
- de->inode.ctime = inode->i_ctime;
- if ((iattr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)) &&
- !is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CHANGE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_notify_change */
-
-static struct super_operations devfs_sops = {
- .drop_inode = generic_delete_inode,
- .statfs = simple_statfs,
-};
-
-/**
- * _devfs_get_vfs_inode - Get a VFS inode.
- * @sb: The super block.
- * @de: The devfs inode.
- * @dentry: The dentry to register with the devfs inode.
- *
- * Returns the inode on success, else %NULL. An implicit devfs_get() is
- * performed if the inode is created.
- */
-
-static struct inode *_devfs_get_vfs_inode(struct super_block *sb,
- struct devfs_entry *de,
- struct dentry *dentry)
-{
- struct inode *inode;
-
- if (de->prev == de)
- return NULL; /* Quick check to see if unhooked */
- if ((inode = new_inode(sb)) == NULL) {
- PRINTK("(%s): new_inode() failed, de: %p\n", de->name, de);
- return NULL;
- }
- if (de->parent) {
- read_lock(&de->parent->u.dir.lock);
- if (de->prev != de)
- de->inode.dentry = dentry; /* Not unhooked */
- read_unlock(&de->parent->u.dir.lock);
- } else
- de->inode.dentry = dentry; /* Root: no locking needed */
- if (de->inode.dentry != dentry) { /* Must have been unhooked */
- iput(inode);
- return NULL;
- }
- /* FIXME where is devfs_put? */
- inode->u.generic_ip = devfs_get(de);
- inode->i_ino = de->inode.ino;
- DPRINTK(DEBUG_I_GET, "(%d): VFS inode: %p devfs_entry: %p\n",
- (int)inode->i_ino, inode, de);
- inode->i_blocks = 0;
- inode->i_blksize = FAKE_BLOCK_SIZE;
- inode->i_op = &devfs_iops;
- inode->i_mode = de->mode;
- if (S_ISDIR(de->mode)) {
- inode->i_op = &devfs_dir_iops;
- inode->i_fop = &devfs_dir_fops;
- } else if (S_ISLNK(de->mode)) {
- inode->i_op = &devfs_symlink_iops;
- inode->i_size = de->u.symlink.length;
- } else if (S_ISCHR(de->mode) || S_ISBLK(de->mode)) {
- init_special_inode(inode, de->mode, de->u.dev);
- } else if (S_ISFIFO(de->mode) || S_ISSOCK(de->mode)) {
- init_special_inode(inode, de->mode, 0);
- } else {
- PRINTK("(%s): unknown mode %o de: %p\n",
- de->name, de->mode, de);
- iput(inode);
- devfs_put(de);
- return NULL;
- }
-
- inode->i_uid = de->inode.uid;
- inode->i_gid = de->inode.gid;
- inode->i_atime = de->inode.atime;
- inode->i_mtime = de->inode.mtime;
- inode->i_ctime = de->inode.ctime;
- DPRINTK(DEBUG_I_GET, "(): mode: 0%o uid: %d gid: %d\n",
- (int)inode->i_mode, (int)inode->i_uid, (int)inode->i_gid);
- return inode;
-} /* End Function _devfs_get_vfs_inode */
-
-/* File operations for device entries follow */
-
-static int devfs_readdir(struct file *file, void *dirent, filldir_t filldir)
-{
- int err, count;
- int stored = 0;
- struct fs_info *fs_info;
- struct devfs_entry *parent, *de, *next = NULL;
- struct inode *inode = file->f_dentry->d_inode;
-
- fs_info = inode->i_sb->s_fs_info;
- parent = get_devfs_entry_from_vfs_inode(file->f_dentry->d_inode);
- if ((long)file->f_pos < 0)
- return -EINVAL;
- DPRINTK(DEBUG_F_READDIR, "(%s): fs_info: %p pos: %ld\n",
- parent->name, fs_info, (long)file->f_pos);
- switch ((long)file->f_pos) {
- case 0:
- err = (*filldir) (dirent, "..", 2, file->f_pos,
- parent_ino(file->f_dentry), DT_DIR);
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- file->f_pos++;
- ++stored;
- /* Fall through */
- case 1:
- err =
- (*filldir) (dirent, ".", 1, file->f_pos, inode->i_ino,
- DT_DIR);
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- file->f_pos++;
- ++stored;
- /* Fall through */
- default:
- /* Skip entries */
- count = file->f_pos - 2;
- read_lock(&parent->u.dir.lock);
- for (de = parent->u.dir.first; de && (count > 0); de = de->next)
- --count;
- devfs_get(de);
- read_unlock(&parent->u.dir.lock);
- /* Now add all remaining entries */
- while (de) {
- err = (*filldir) (dirent, de->name, de->namelen,
- file->f_pos, de->inode.ino,
- de->mode >> 12);
- if (err < 0)
- devfs_put(de);
- else {
- file->f_pos++;
- ++stored;
- }
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- read_lock(&parent->u.dir.lock);
- next = devfs_get(de->next);
- read_unlock(&parent->u.dir.lock);
- devfs_put(de);
- de = next;
- }
- break;
- }
- return stored;
-} /* End Function devfs_readdir */
-
-/* Open devfs specific special files */
-static int devfs_open(struct inode *inode, struct file *file)
-{
- int err;
- int minor = MINOR(inode->i_rdev);
- struct file_operations *old_fops, *new_fops;
-
- switch (minor) {
- case 0: /* /dev/.devfsd */
- new_fops = fops_get(&devfsd_fops);
- break;
-#ifdef CONFIG_DEVFS_DEBUG
- case 1: /* /dev/.stat */
- new_fops = fops_get(&stat_fops);
- break;
-#endif
- default:
- return -ENODEV;
- }
-
- if (new_fops == NULL)
- return -ENODEV;
- old_fops = file->f_op;
- file->f_op = new_fops;
- err = new_fops->open ? new_fops->open(inode, file) : 0;
- if (err) {
- file->f_op = old_fops;
- fops_put(new_fops);
- } else
- fops_put(old_fops);
- return err;
-} /* End Function devfs_open */
-
-static const struct file_operations devfs_fops = {
- .open = devfs_open,
-};
-
-static const struct file_operations devfs_dir_fops = {
- .read = generic_read_dir,
- .readdir = devfs_readdir,
-};
-
-/* Dentry operations for device entries follow */
-
-/**
- * devfs_d_release - Callback for when a dentry is freed.
- * @dentry: The dentry.
- */
-
-static void devfs_d_release(struct dentry *dentry)
-{
- DPRINTK(DEBUG_D_RELEASE, "(%p): inode: %p\n", dentry, dentry->d_inode);
-} /* End Function devfs_d_release */
-
-/**
- * devfs_d_iput - Callback for when a dentry loses its inode.
- * @dentry: The dentry.
- * @inode: The inode.
- */
-
-static void devfs_d_iput(struct dentry *dentry, struct inode *inode)
-{
- struct devfs_entry *de;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- DPRINTK(DEBUG_D_IPUT,
- "(%s): dentry: %p inode: %p de: %p de->dentry: %p\n", de->name,
- dentry, inode, de, de->inode.dentry);
- if (de->inode.dentry && (de->inode.dentry != dentry))
- OOPS("(%s): de: %p dentry: %p de->dentry: %p\n",
- de->name, de, dentry, de->inode.dentry);
- de->inode.dentry = NULL;
- iput(inode);
- devfs_put(de);
-} /* End Function devfs_d_iput */
-
-static int devfs_d_delete(struct dentry *dentry);
-
-static struct dentry_operations devfs_dops = {
- .d_delete = devfs_d_delete,
- .d_release = devfs_d_release,
- .d_iput = devfs_d_iput,
-};
-
-static int devfs_d_revalidate_wait(struct dentry *dentry, struct nameidata *);
-
-static struct dentry_operations devfs_wait_dops = {
- .d_delete = devfs_d_delete,
- .d_release = devfs_d_release,
- .d_iput = devfs_d_iput,
- .d_revalidate = devfs_d_revalidate_wait,
-};
-
-/**
- * devfs_d_delete - Callback for when all files for a dentry are closed.
- * @dentry: The dentry.
- */
-
-static int devfs_d_delete(struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
-
- if (dentry->d_op == &devfs_wait_dops)
- dentry->d_op = &devfs_dops;
- /* Unhash dentry if negative (has no inode) */
- if (inode == NULL) {
- DPRINTK(DEBUG_D_DELETE, "(%p): dropping negative dentry\n",
- dentry);
- return 1;
- }
- return 0;
-} /* End Function devfs_d_delete */
-
-struct devfs_lookup_struct {
- devfs_handle_t de;
- wait_queue_head_t wait_queue;
-};
-
-/* XXX: this doesn't handle the case where we got a negative dentry
- but a devfs entry has been registered in the meanwhile */
-static int devfs_d_revalidate_wait(struct dentry *dentry, struct nameidata *nd)
-{
- struct inode *dir = dentry->d_parent->d_inode;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- devfs_handle_t parent = get_devfs_entry_from_vfs_inode(dir);
- struct devfs_lookup_struct *lookup_info = dentry->d_fsdata;
- DECLARE_WAITQUEUE(wait, current);
- int need_lock;
-
- /*
- * FIXME HACK
- *
- * make sure that
- * d_instantiate always runs under lock
- * we release i_mutex lock before going to sleep
- *
- * unfortunately sometimes d_revalidate is called with
- * and sometimes without i_mutex lock held. The following checks
- * attempt to deduce when we need to add (and drop resp.) lock
- * here. This relies on current (2.6.2) calling coventions:
- *
- * lookup_hash is always run under i_mutex and is passing NULL
- * as nd
- *
- * open(...,O_CREATE,...) calls _lookup_hash under i_mutex
- * and sets flags to LOOKUP_OPEN|LOOKUP_CREATE
- *
- * all other invocations of ->d_revalidate seem to happen
- * outside of i_mutex
- */
- need_lock = nd &&
- (!(nd->flags & LOOKUP_CREATE) || (nd->flags & LOOKUP_PARENT));
-
- if (need_lock)
- mutex_lock(&dir->i_mutex);
-
- if (is_devfsd_or_child(fs_info)) {
- devfs_handle_t de = lookup_info->de;
- struct inode *inode;
-
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): dentry: %p inode: %p de: %p by: \"%s\"\n",
- dentry->d_name.name, dentry, dentry->d_inode, de,
- current->comm);
- if (dentry->d_inode)
- goto out;
- if (de == NULL) {
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name,
- dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- if (de == NULL)
- goto out;
- lookup_info->de = de;
- }
- /* Create an inode, now that the driver information is available */
- inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry);
- if (!inode)
- goto out;
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n",
- de->name, de->inode.ino, inode, de, current->comm);
- d_instantiate(dentry, inode);
- goto out;
- }
- if (lookup_info == NULL)
- goto out; /* Early termination */
- read_lock(&parent->u.dir.lock);
- if (dentry->d_fsdata) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&lookup_info->wait_queue, &wait);
- read_unlock(&parent->u.dir.lock);
- /* at this point it is always (hopefully) locked */
- mutex_unlock(&dir->i_mutex);
- schedule();
- mutex_lock(&dir->i_mutex);
- /*
- * This does not need nor should remove wait from wait_queue.
- * Wait queue head is never reused - nothing is ever added to it
- * after all waiters have been waked up and head itself disappears
- * very soon after it. Moreover it is local variable on stack that
- * is likely to have already disappeared so any reference to it
- * at this point is buggy.
- */
-
- } else
- read_unlock(&parent->u.dir.lock);
-
- out:
- if (need_lock)
- mutex_unlock(&dir->i_mutex);
- return 1;
-} /* End Function devfs_d_revalidate_wait */
-
-/* Inode operations for device entries follow */
-
-static struct dentry *devfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
-{
- struct devfs_entry tmp; /* Must stay in scope until devfsd idle again */
- struct devfs_lookup_struct lookup_info;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
- struct dentry *retval = NULL;
-
- /* Set up the dentry operations before anything else, to ensure cleaning
- up on any error */
- dentry->d_op = &devfs_dops;
- /* First try to get the devfs entry for this directory */
- parent = get_devfs_entry_from_vfs_inode(dir);
- DPRINTK(DEBUG_I_LOOKUP, "(%s): dentry: %p parent: %p by: \"%s\"\n",
- dentry->d_name.name, dentry, parent, current->comm);
- if (parent == NULL)
- return ERR_PTR(-ENOENT);
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name, dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- lookup_info.de = de;
- init_waitqueue_head(&lookup_info.wait_queue);
- dentry->d_fsdata = &lookup_info;
- if (de == NULL) { /* Try with devfsd. For any kind of failure, leave a negative dentry
- so someone else can deal with it (in the case where the sysadmin
- does a mknod()). It's important to do this before hashing the
- dentry, so that the devfsd queue is filled before revalidates
- can start */
- if (try_modload(parent, fs_info, dentry->d_name.name, dentry->d_name.len, &tmp) < 0) { /* Lookup event was not queued to devfsd */
- d_add(dentry, NULL);
- return NULL;
- }
- }
- dentry->d_op = &devfs_wait_dops;
- d_add(dentry, NULL); /* Open the floodgates */
- /* Unlock directory semaphore, which will release any waiters. They
- will get the hashed dentry, and may be forced to wait for
- revalidation */
- mutex_unlock(&dir->i_mutex);
- wait_for_devfsd_finished(fs_info); /* If I'm not devfsd, must wait */
- mutex_lock(&dir->i_mutex); /* Grab it again because them's the rules */
- de = lookup_info.de;
- /* If someone else has been so kind as to make the inode, we go home
- early */
- if (dentry->d_inode)
- goto out;
- if (de == NULL) {
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name,
- dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- if (de == NULL)
- goto out;
- /* OK, there's an entry now, but no VFS inode yet */
- }
- /* Create an inode, now that the driver information is available */
- inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry);
- if (!inode) {
- retval = ERR_PTR(-ENOMEM);
- goto out;
- }
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n", de->name,
- de->inode.ino, inode, de, current->comm);
- d_instantiate(dentry, inode);
- out:
- write_lock(&parent->u.dir.lock);
- dentry->d_op = &devfs_dops;
- dentry->d_fsdata = NULL;
- wake_up(&lookup_info.wait_queue);
- write_unlock(&parent->u.dir.lock);
- devfs_put(de);
- return retval;
-} /* End Function devfs_lookup */
-
-static int devfs_unlink(struct inode *dir, struct dentry *dentry)
-{
- int unhooked;
- struct devfs_entry *de;
- struct inode *inode = dentry->d_inode;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- DPRINTK(DEBUG_I_UNLINK, "(%s): de: %p\n", dentry->d_name.name, de);
- if (de == NULL)
- return -ENOENT;
- if (!de->vfs)
- return -EPERM;
- write_lock(&de->parent->u.dir.lock);
- unhooked = _devfs_unhook(de);
- write_unlock(&de->parent->u.dir.lock);
- if (!unhooked)
- return -ENOENT;
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- free_dentry(de);
- devfs_put(de);
- return 0;
-} /* End Function devfs_unlink */
-
-static int devfs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- /* First try to get the devfs entry for this directory */
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- err = devfs_do_symlink(parent, dentry->d_name.name, symname, &de);
- DPRINTK(DEBUG_DISABLED, "(%s): errcode from <devfs_do_symlink>: %d\n",
- dentry->d_name.name, err);
- if (err < 0)
- return err;
- de->vfs = TRUE;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_DISABLED, "(%s): new VFS inode(%u): %p dentry: %p\n",
- dentry->d_name.name, de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_symlink */
-
-static int devfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- mode = (mode & ~S_IFMT) | S_IFDIR; /* VFS doesn't pass S_IFMT part */
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- de = _devfs_alloc_entry(dentry->d_name.name, dentry->d_name.len, mode);
- if (!de)
- return -ENOMEM;
- de->vfs = TRUE;
- if ((err = _devfs_append_entry(parent, de, NULL)) != 0)
- return err;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_DISABLED, "(%s): new VFS inode(%u): %p dentry: %p\n",
- dentry->d_name.name, de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_mkdir */
-
-static int devfs_rmdir(struct inode *dir, struct dentry *dentry)
-{
- int err = 0;
- struct devfs_entry *de;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct inode *inode = dentry->d_inode;
-
- if (dir->i_sb->s_fs_info != inode->i_sb->s_fs_info)
- return -EINVAL;
- de = get_devfs_entry_from_vfs_inode(inode);
- if (de == NULL)
- return -ENOENT;
- if (!S_ISDIR(de->mode))
- return -ENOTDIR;
- if (!de->vfs)
- return -EPERM;
- /* First ensure the directory is empty and will stay that way */
- write_lock(&de->u.dir.lock);
- if (de->u.dir.first)
- err = -ENOTEMPTY;
- else
- de->u.dir.no_more_additions = TRUE;
- write_unlock(&de->u.dir.lock);
- if (err)
- return err;
- /* Now unhook the directory from its parent */
- write_lock(&de->parent->u.dir.lock);
- if (!_devfs_unhook(de))
- err = -ENOENT;
- write_unlock(&de->parent->u.dir.lock);
- if (err)
- return err;
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- free_dentry(de);
- devfs_put(de);
- return 0;
-} /* End Function devfs_rmdir */
-
-static int devfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t rdev)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- DPRINTK(DEBUG_I_MKNOD, "(%s): mode: 0%o dev: %u:%u\n",
- dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- de = _devfs_alloc_entry(dentry->d_name.name, dentry->d_name.len, mode);
- if (!de)
- return -ENOMEM;
- de->vfs = TRUE;
- if (S_ISCHR(mode) || S_ISBLK(mode))
- de->u.dev = rdev;
- if ((err = _devfs_append_entry(parent, de, NULL)) != 0)
- return err;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_I_MKNOD, ": new VFS inode(%u): %p dentry: %p\n",
- de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_mknod */
-
-static void *devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- struct devfs_entry *p = get_devfs_entry_from_vfs_inode(dentry->d_inode);
- nd_set_link(nd, p ? p->u.symlink.linkname : ERR_PTR(-ENODEV));
- return NULL;
-} /* End Function devfs_follow_link */
-
-static struct inode_operations devfs_iops = {
- .setattr = devfs_notify_change,
-};
-
-static struct inode_operations devfs_dir_iops = {
- .lookup = devfs_lookup,
- .unlink = devfs_unlink,
- .symlink = devfs_symlink,
- .mkdir = devfs_mkdir,
- .rmdir = devfs_rmdir,
- .mknod = devfs_mknod,
- .setattr = devfs_notify_change,
-};
-
-static struct inode_operations devfs_symlink_iops = {
- .readlink = generic_readlink,
- .follow_link = devfs_follow_link,
- .setattr = devfs_notify_change,
-};
-
-static int devfs_fill_super(struct super_block *sb, void *data, int silent)
-{
- struct inode *root_inode = NULL;
-
- if (_devfs_get_root_entry() == NULL)
- goto out_no_root;
- atomic_set(&fs_info.devfsd_overrun_count, 0);
- init_waitqueue_head(&fs_info.devfsd_wait_queue);
- init_waitqueue_head(&fs_info.revalidate_wait_queue);
- fs_info.sb = sb;
- sb->s_fs_info = &fs_info;
- sb->s_blocksize = 1024;
- sb->s_blocksize_bits = 10;
- sb->s_magic = DEVFS_SUPER_MAGIC;
- sb->s_op = &devfs_sops;
- sb->s_time_gran = 1;
- if ((root_inode = _devfs_get_vfs_inode(sb, root_entry, NULL)) == NULL)
- goto out_no_root;
- sb->s_root = d_alloc_root(root_inode);
- if (!sb->s_root)
- goto out_no_root;
- DPRINTK(DEBUG_S_READ, "(): made devfs ptr: %p\n", sb->s_fs_info);
- return 0;
-
- out_no_root:
- PRINTK("(): get root inode failed\n");
- if (root_inode)
- iput(root_inode);
- return -EINVAL;
-} /* End Function devfs_fill_super */
-
-static int devfs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
- return get_sb_single(fs_type, flags, data, devfs_fill_super, mnt);
-}
-
-static struct file_system_type devfs_fs_type = {
- .name = DEVFS_NAME,
- .get_sb = devfs_get_sb,
- .kill_sb = kill_anon_super,
-};
-
-/* File operations for devfsd follow */
-
-static ssize_t devfsd_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos)
-{
- int done = FALSE;
- int ival;
- loff_t pos, devname_offset, tlen, rpos;
- devfs_handle_t de;
- struct devfsd_buf_entry *entry;
- struct fs_info *fs_info = file->f_dentry->d_inode->i_sb->s_fs_info;
- struct devfsd_notify_struct *info = fs_info->devfsd_info;
- DECLARE_WAITQUEUE(wait, current);
-
- /* Verify the task has grabbed the queue */
- if (fs_info->devfsd_task != current)
- return -EPERM;
- info->major = 0;
- info->minor = 0;
- /* Block for a new entry */
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- while (devfsd_queue_empty(fs_info)) {
- fs_info->devfsd_sleeping = TRUE;
- wake_up(&fs_info->revalidate_wait_queue);
- schedule();
- fs_info->devfsd_sleeping = FALSE;
- if (signal_pending(current)) {
- remove_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- return -EINTR;
- }
- set_current_state(TASK_INTERRUPTIBLE);
- }
- remove_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- /* Now play with the data */
- ival = atomic_read(&fs_info->devfsd_overrun_count);
- info->overrun_count = ival;
- entry = fs_info->devfsd_first_event;
- info->type = entry->type;
- info->mode = entry->mode;
- info->uid = entry->uid;
- info->gid = entry->gid;
- de = entry->de;
- if (S_ISCHR(de->mode) || S_ISBLK(de->mode)) {
- info->major = MAJOR(de->u.dev);
- info->minor = MINOR(de->u.dev);
- }
- pos = devfs_generate_path(de, info->devname, DEVFS_PATHLEN);
- if (pos < 0)
- return pos;
- info->namelen = DEVFS_PATHLEN - pos - 1;
- if (info->mode == 0)
- info->mode = de->mode;
- devname_offset = info->devname - (char *)info;
- rpos = *ppos;
- if (rpos < devname_offset) {
- /* Copy parts of the header */
- tlen = devname_offset - rpos;
- if (tlen > len)
- tlen = len;
- if (copy_to_user(buf, (char *)info + rpos, tlen)) {
- return -EFAULT;
- }
- rpos += tlen;
- buf += tlen;
- len -= tlen;
- }
- if ((rpos >= devname_offset) && (len > 0)) {
- /* Copy the name */
- tlen = info->namelen + 1;
- if (tlen > len)
- tlen = len;
- else
- done = TRUE;
- if (copy_to_user
- (buf, info->devname + pos + rpos - devname_offset, tlen)) {
- return -EFAULT;
- }
- rpos += tlen;
- }
- tlen = rpos - *ppos;
- if (done) {
- devfs_handle_t parent;
-
- spin_lock(&fs_info->devfsd_buffer_lock);
- fs_info->devfsd_first_event = entry->next;
- if (entry->next == NULL)
- fs_info->devfsd_last_event = NULL;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- for (; de != NULL; de = parent) {
- parent = de->parent;
- devfs_put(de);
- }
- kmem_cache_free(devfsd_buf_cache, entry);
- if (ival > 0)
- atomic_sub(ival, &fs_info->devfsd_overrun_count);
- *ppos = 0;
- } else
- *ppos = rpos;
- return tlen;
-} /* End Function devfsd_read */
-
-static int devfsd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ival;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- switch (cmd) {
- case DEVFSDIOC_GET_PROTO_REV:
- ival = DEVFSD_PROTOCOL_REVISION_KERNEL;
- if (copy_to_user((void __user *)arg, &ival, sizeof ival))
- return -EFAULT;
- break;
- case DEVFSDIOC_SET_EVENT_MASK:
- /* Ensure only one reader has access to the queue. This scheme will
- work even if the global kernel lock were to be removed, because it
- doesn't matter who gets in first, as long as only one gets it */
- if (fs_info->devfsd_task == NULL) {
- static DEFINE_SPINLOCK(lock);
-
- if (!spin_trylock(&lock))
- return -EBUSY;
- if (fs_info->devfsd_task != NULL) { /* We lost the race... */
- spin_unlock(&lock);
- return -EBUSY;
- }
- fs_info->devfsd_task = current;
- spin_unlock(&lock);
- fs_info->devfsd_pgrp =
- (process_group(current) ==
- current->pid) ? process_group(current) : 0;
- fs_info->devfsd_file = file;
- fs_info->devfsd_info =
- kmalloc(sizeof *fs_info->devfsd_info, GFP_KERNEL);
- if (!fs_info->devfsd_info) {
- devfsd_close(inode, file);
- return -ENOMEM;
- }
- } else if (fs_info->devfsd_task != current)
- return -EBUSY;
- fs_info->devfsd_event_mask = arg; /* Let the masses come forth */
- break;
- case DEVFSDIOC_RELEASE_EVENT_QUEUE:
- if (fs_info->devfsd_file != file)
- return -EPERM;
- return devfsd_close(inode, file);
- /*break; */
-#ifdef CONFIG_DEVFS_DEBUG
- case DEVFSDIOC_SET_DEBUG_MASK:
- if (copy_from_user(&ival, (void __user *)arg, sizeof ival))
- return -EFAULT;
- devfs_debug = ival;
- break;
-#endif
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-} /* End Function devfsd_ioctl */
-
-static int devfsd_close(struct inode *inode, struct file *file)
-{
- struct devfsd_buf_entry *entry, *next;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- if (fs_info->devfsd_file != file)
- return 0;
- fs_info->devfsd_event_mask = 0;
- fs_info->devfsd_file = NULL;
- spin_lock(&fs_info->devfsd_buffer_lock);
- entry = fs_info->devfsd_first_event;
- fs_info->devfsd_first_event = NULL;
- fs_info->devfsd_last_event = NULL;
- kfree(fs_info->devfsd_info);
- fs_info->devfsd_info = NULL;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- fs_info->devfsd_pgrp = 0;
- fs_info->devfsd_task = NULL;
- wake_up(&fs_info->revalidate_wait_queue);
- for (; entry; entry = next) {
- next = entry->next;
- kmem_cache_free(devfsd_buf_cache, entry);
- }
- return 0;
-} /* End Function devfsd_close */
-
-#ifdef CONFIG_DEVFS_DEBUG
-static ssize_t stat_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos)
-{
- ssize_t num;
- char txt[80];
-
- num = sprintf(txt, "Number of entries: %u number of bytes: %u\n",
- stat_num_entries, stat_num_bytes) + 1;
- if (*ppos >= num)
- return 0;
- if (*ppos + len > num)
- len = num - *ppos;
- if (copy_to_user(buf, txt + *ppos, len))
- return -EFAULT;
- *ppos += len;
- return len;
-} /* End Function stat_read */
-#endif
-
-static int __init init_devfs_fs(void)
-{
- int err;
- int major;
- struct devfs_entry *devfsd;
-#ifdef CONFIG_DEVFS_DEBUG
- struct devfs_entry *stat;
-#endif
-
- if (_devfs_get_root_entry() == NULL)
- return -ENOMEM;
-
- printk(KERN_INFO "%s: %s Richard Gooch (rgooch@atnf.csiro.au)\n",
- DEVFS_NAME, DEVFS_VERSION);
- devfsd_buf_cache = kmem_cache_create("devfsd_event",
- sizeof(struct devfsd_buf_entry),
- 0, 0, NULL, NULL);
- if (!devfsd_buf_cache)
- OOPS("(): unable to allocate event slab\n");
-#ifdef CONFIG_DEVFS_DEBUG
- devfs_debug = devfs_debug_init;
- printk(KERN_INFO "%s: devfs_debug: 0x%0x\n", DEVFS_NAME, devfs_debug);
-#endif
- printk(KERN_INFO "%s: boot_options: 0x%0x\n", DEVFS_NAME, boot_options);
-
- /* register special device for devfsd communication */
- major = register_chrdev(0, "devfs", &devfs_fops);
- if (major < 0)
- return major;
-
- /* And create the entry for ".devfsd" */
- devfsd = _devfs_alloc_entry(".devfsd", 0, S_IFCHR | S_IRUSR | S_IWUSR);
- if (devfsd == NULL)
- return -ENOMEM;
- devfsd->u.dev = MKDEV(major, 0);
- _devfs_append_entry(root_entry, devfsd, NULL);
-
-#ifdef CONFIG_DEVFS_DEBUG
- stat = _devfs_alloc_entry(".stat", 0, S_IFCHR | S_IRUGO);
- if (stat == NULL)
- return -ENOMEM;
- stat->u.dev = MKDEV(major, 1);
- _devfs_append_entry(root_entry, stat, NULL);
-#endif
-
- err = register_filesystem(&devfs_fs_type);
- return err;
-} /* End Function init_devfs_fs */
-
-void __init mount_devfs_fs(void)
-{
- int err;
-
- if (!(boot_options & OPTION_MOUNT))
- return;
- err = do_mount("none", "/dev", "devfs", 0, NULL);
- if (err == 0)
- printk(KERN_INFO "Mounted devfs on /dev\n");
- else
- PRINTK("(): unable to mount devfs, err: %d\n", err);
-} /* End Function mount_devfs_fs */
-
-module_init(init_devfs_fs)
diff --git a/fs/devfs/util.c b/fs/devfs/util.c
deleted file mode 100644
index db06d388c9a..00000000000
--- a/fs/devfs/util.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* devfs (Device FileSystem) utilities.
-
- Copyright (C) 1999-2002 Richard Gooch
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Richard Gooch may be reached by email at rgooch@atnf.csiro.au
- The postal address is:
- Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
-
- ChangeLog
-
- 19991031 Richard Gooch <rgooch@atnf.csiro.au>
- Created.
- 19991103 Richard Gooch <rgooch@atnf.csiro.au>
- Created <_devfs_convert_name> and supported SCSI and IDE CD-ROMs
- 20000203 Richard Gooch <rgooch@atnf.csiro.au>
- Changed operations pointer type to void *.
- 20000621 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <devfs_register_series>.
- 20000622 Richard Gooch <rgooch@atnf.csiro.au>
- Took account of interface change to <devfs_mk_symlink>.
- Took account of interface change to <devfs_mk_dir>.
- 20010519 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation cleanup.
- 20010709 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_*alloc_major> and <devfs_*alloc_devnum>.
- 20010710 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_*alloc_unique_number>.
- 20010730 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation typo fix.
- 20010806 Richard Gooch <rgooch@atnf.csiro.au>
- Made <block_semaphore> and <char_semaphore> private.
- 20010813 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_alloc_unique_number>: limited to 128 numbers
- 20010818 Richard Gooch <rgooch@atnf.csiro.au>
- Updated major masks up to Linus' "no new majors" proclamation.
- Block: were 126 now 122 free, char: were 26 now 19 free.
- 20020324 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_alloc_unique_number>: was clearing beyond
- bitfield.
- 20020326 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bitfield data type for <devfs_*alloc_devnum>.
- Made major bitfield type and initialiser 64 bit safe.
- 20020413 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed shift warning on 64 bit machines.
- 20020428 Richard Gooch <rgooch@atnf.csiro.au>
- Copied and used macro for error messages from fs/devfs/base.c
- 20021013 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation fix.
- 20030101 Adam J. Richter <adam@yggdrasil.com>
- Eliminate DEVFS_SPECIAL_{CHR,BLK}. Use mode_t instead.
- 20030106 Christoph Hellwig <hch@infradead.org>
- Rewrite devfs_{,de}alloc_devnum to look like C code.
-*/
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/genhd.h>
-#include <linux/bitops.h>
-
-int devfs_register_tape(const char *name)
-{
- char tname[32], dest[64];
- static unsigned int tape_counter;
- unsigned int n = tape_counter++;
-
- sprintf(dest, "../%s", name);
- sprintf(tname, "tapes/tape%u", n);
- devfs_mk_symlink(tname, dest);
-
- return n;
-}
-
-EXPORT_SYMBOL(devfs_register_tape);
-
-void devfs_unregister_tape(int num)
-{
- if (num >= 0)
- devfs_remove("tapes/tape%u", num);
-}
-
-EXPORT_SYMBOL(devfs_unregister_tape);
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 538fb0418fb..5981e17f46f 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -220,7 +220,8 @@ static void dio_complete(struct dio *dio, loff_t offset, ssize_t bytes)
if (dio->end_io && dio->result)
dio->end_io(dio->iocb, offset, bytes, dio->map_bh.b_private);
if (dio->lock_type == DIO_LOCKING)
- up_read(&dio->inode->i_alloc_sem);
+ /* lockdep: non-owner release */
+ up_read_non_owner(&dio->inode->i_alloc_sem);
}
/*
@@ -1261,7 +1262,8 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
}
if (dio_lock_type == DIO_LOCKING)
- down_read(&inode->i_alloc_sem);
+ /* lockdep: not the owner will release it */
+ down_read_non_owner(&inode->i_alloc_sem);
}
/*
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index 180607f9314..174696f9bf1 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -21,7 +21,7 @@ static sector_t _efs_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,efs_get_block);
}
-static struct address_space_operations efs_aops = {
+static const struct address_space_operations efs_aops = {
.readpage = efs_readpage,
.sync_page = block_sync_page,
.bmap = _efs_bmap
diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
index 3d9a350e3e7..e249cf733a6 100644
--- a/fs/efs/symlink.c
+++ b/fs/efs/symlink.c
@@ -53,6 +53,6 @@ fail:
return err;
}
-struct address_space_operations efs_symlink_aops = {
+const struct address_space_operations efs_symlink_aops = {
.readpage = efs_symlink_readpage
};
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 9c677bbd0b0..19ffb043abb 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -120,7 +120,7 @@ struct epoll_filefd {
*/
struct wake_task_node {
struct list_head llink;
- task_t *task;
+ struct task_struct *task;
wait_queue_head_t *wq;
};
@@ -413,7 +413,7 @@ static void ep_poll_safewake(struct poll_safewake *psw, wait_queue_head_t *wq)
{
int wake_nests = 0;
unsigned long flags;
- task_t *this_task = current;
+ struct task_struct *this_task = current;
struct list_head *lsthead = &psw->wake_task_list, *lnk;
struct wake_task_node *tncur;
struct wake_task_node tnode;
diff --git a/fs/exec.c b/fs/exec.c
index c8494f513ea..8344ba73a2a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -22,7 +22,6 @@
* formats.
*/
-#include <linux/config.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/mman.h>
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 433a213a8bd..d4870432ecf 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -11,7 +11,6 @@
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/config.h>
#include "ext2.h"
#include <linux/quotaops.h>
#include <linux/sched.h>
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 9f74a62be55..e65a019fc7a 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -162,9 +162,9 @@ extern const struct file_operations ext2_file_operations;
extern const struct file_operations ext2_xip_file_operations;
/* inode.c */
-extern struct address_space_operations ext2_aops;
-extern struct address_space_operations ext2_aops_xip;
-extern struct address_space_operations ext2_nobh_aops;
+extern const struct address_space_operations ext2_aops;
+extern const struct address_space_operations ext2_aops_xip;
+extern const struct address_space_operations ext2_nobh_aops;
/* namei.c */
extern struct inode_operations ext2_dir_inode_operations;
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 308c252568c..de85c61c58c 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -12,7 +12,6 @@
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/config.h>
#include <linux/quotaops.h>
#include <linux/sched.h>
#include <linux/backing-dev.h>
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 04af9c45dce..fb4d3220eb8 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -684,7 +684,7 @@ ext2_writepages(struct address_space *mapping, struct writeback_control *wbc)
return mpage_writepages(mapping, wbc, ext2_get_block);
}
-struct address_space_operations ext2_aops = {
+const struct address_space_operations ext2_aops = {
.readpage = ext2_readpage,
.readpages = ext2_readpages,
.writepage = ext2_writepage,
@@ -697,12 +697,12 @@ struct address_space_operations ext2_aops = {
.migratepage = buffer_migrate_page,
};
-struct address_space_operations ext2_aops_xip = {
+const struct address_space_operations ext2_aops_xip = {
.bmap = ext2_bmap,
.get_xip_page = ext2_get_xip_page,
};
-struct address_space_operations ext2_nobh_aops = {
+const struct address_space_operations ext2_nobh_aops = {
.readpage = ext2_readpage,
.readpages = ext2_readpages,
.writepage = ext2_nobh_writepage,
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index d4233b2e643..f2702cda977 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -16,7 +16,6 @@
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/fs.h>
@@ -1158,7 +1157,7 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type,
struct buffer_head tmp_bh;
struct buffer_head *bh;
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
diff --git a/fs/ext2/xattr.h b/fs/ext2/xattr.h
index 67cfeb66e89..bf8175b2ced 100644
--- a/fs/ext2/xattr.h
+++ b/fs/ext2/xattr.h
@@ -6,7 +6,6 @@
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/xattr.h>
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 96172e89ddc..a504a40d6d2 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -11,7 +11,6 @@
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/capability.h>
#include <linux/fs.h>
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 0321e1b9034..f804d5e9d60 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1698,7 +1698,7 @@ static int ext3_journalled_set_page_dirty(struct page *page)
return __set_page_dirty_nobuffers(page);
}
-static struct address_space_operations ext3_ordered_aops = {
+static const struct address_space_operations ext3_ordered_aops = {
.readpage = ext3_readpage,
.readpages = ext3_readpages,
.writepage = ext3_ordered_writepage,
@@ -1712,7 +1712,7 @@ static struct address_space_operations ext3_ordered_aops = {
.migratepage = buffer_migrate_page,
};
-static struct address_space_operations ext3_writeback_aops = {
+static const struct address_space_operations ext3_writeback_aops = {
.readpage = ext3_readpage,
.readpages = ext3_readpages,
.writepage = ext3_writeback_writepage,
@@ -1726,7 +1726,7 @@ static struct address_space_operations ext3_writeback_aops = {
.migratepage = buffer_migrate_page,
};
-static struct address_space_operations ext3_journalled_aops = {
+static const struct address_space_operations ext3_journalled_aops = {
.readpage = ext3_readpage,
.readpages = ext3_readpages,
.writepage = ext3_journalled_writepage,
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index dfd811895d8..5e1337fd878 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -8,7 +8,6 @@
* This could probably be made into a module, because it is not often in use.
*/
-#include <linux/config.h>
#define EXT3FS_DEBUG
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index b7483360a2d..813d589cc6c 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -16,7 +16,6 @@
* David S. Miller (davem@caip.rutgers.edu), 1995
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/fs.h>
@@ -2615,7 +2614,7 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
diff --git a/fs/ext3/xattr.h b/fs/ext3/xattr.h
index 2ceae38f3d4..6b1ae1c6182 100644
--- a/fs/ext3/xattr.h
+++ b/fs/ext3/xattr.h
@@ -6,7 +6,6 @@
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
-#include <linux/config.h>
#include <linux/xattr.h>
/* Magic value in attribute blocks */
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 7c35d582ec1..31b7174176b 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -196,7 +196,7 @@ static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping, block, fat_get_block);
}
-static struct address_space_operations fat_aops = {
+static const struct address_space_operations fat_aops = {
.readpage = fat_readpage,
.readpages = fat_readpages,
.writepage = fat_writepage,
diff --git a/fs/file_table.c b/fs/file_table.c
index 506d5307108..0131ba06e1e 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -5,7 +5,6 @@
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
*/
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/file.h>
diff --git a/fs/freevxfs/vxfs_immed.c b/fs/freevxfs/vxfs_immed.c
index 6f5df1700e9..4e25f3fbed8 100644
--- a/fs/freevxfs/vxfs_immed.c
+++ b/fs/freevxfs/vxfs_immed.c
@@ -56,7 +56,7 @@ struct inode_operations vxfs_immed_symlink_iops = {
/*
* Adress space operations for immed files and directories.
*/
-struct address_space_operations vxfs_immed_aops = {
+const struct address_space_operations vxfs_immed_aops = {
.readpage = vxfs_immed_readpage,
};
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index f544aae9169..ca6a3971477 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -41,8 +41,8 @@
#include "vxfs_extern.h"
-extern struct address_space_operations vxfs_aops;
-extern struct address_space_operations vxfs_immed_aops;
+extern const struct address_space_operations vxfs_aops;
+extern const struct address_space_operations vxfs_immed_aops;
extern struct inode_operations vxfs_immed_symlink_iops;
@@ -295,7 +295,7 @@ vxfs_read_inode(struct inode *ip)
{
struct super_block *sbp = ip->i_sb;
struct vxfs_inode_info *vip;
- struct address_space_operations *aops;
+ const struct address_space_operations *aops;
ino_t ino = ip->i_ino;
if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
diff --git a/fs/freevxfs/vxfs_subr.c b/fs/freevxfs/vxfs_subr.c
index c1be118fc06..decac62efe5 100644
--- a/fs/freevxfs/vxfs_subr.c
+++ b/fs/freevxfs/vxfs_subr.c
@@ -42,7 +42,7 @@
static int vxfs_readpage(struct file *, struct page *);
static sector_t vxfs_bmap(struct address_space *, sector_t);
-struct address_space_operations vxfs_aops = {
+const struct address_space_operations vxfs_aops = {
.readpage = vxfs_readpage,
.bmap = vxfs_bmap,
.sync_page = block_sync_page,
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 031b27a4bc9..892643dc9af 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -464,8 +464,8 @@ void sync_inodes_sb(struct super_block *sb, int wait)
.range_start = 0,
.range_end = LLONG_MAX,
};
- unsigned long nr_dirty = read_page_state(nr_dirty);
- unsigned long nr_unstable = read_page_state(nr_unstable);
+ unsigned long nr_dirty = global_page_state(NR_FILE_DIRTY);
+ unsigned long nr_unstable = global_page_state(NR_UNSTABLE_NFS);
wbc.nr_to_write = nr_dirty + nr_unstable +
(inodes_stat.nr_inodes - inodes_stat.nr_unused) +
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 28aa81eae2c..63614ed1633 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -770,7 +770,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
/* no mmap and sendfile */
};
-static struct address_space_operations fuse_file_aops = {
+static const struct address_space_operations fuse_file_aops = {
.readpage = fuse_readpage,
.prepare_write = fuse_prepare_write,
.commit_write = fuse_commit_write,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 3ed8663a8db..735332dfd1b 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -182,8 +182,8 @@ extern void hfs_file_truncate(struct inode *);
extern int hfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
/* inode.c */
-extern struct address_space_operations hfs_aops;
-extern struct address_space_operations hfs_btree_aops;
+extern const struct address_space_operations hfs_aops;
+extern const struct address_space_operations hfs_btree_aops;
extern struct inode *hfs_new_inode(struct inode *, struct qstr *, int);
extern void hfs_inode_write_fork(struct inode *, struct hfs_extent *, __be32 *, __be32 *);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 2d4ced22201..315cf44a90b 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -114,7 +114,7 @@ static int hfs_writepages(struct address_space *mapping,
return mpage_writepages(mapping, wbc, hfs_get_block);
}
-struct address_space_operations hfs_btree_aops = {
+const struct address_space_operations hfs_btree_aops = {
.readpage = hfs_readpage,
.writepage = hfs_writepage,
.sync_page = block_sync_page,
@@ -124,7 +124,7 @@ struct address_space_operations hfs_btree_aops = {
.releasepage = hfs_releasepage,
};
-struct address_space_operations hfs_aops = {
+const struct address_space_operations hfs_aops = {
.readpage = hfs_readpage,
.writepage = hfs_writepage,
.sync_page = block_sync_page,
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index d9227bf14e8..34937ee83ab 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -12,7 +12,6 @@
* Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/mount.h>
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 7ae393637a0..8a1ca5ef7ad 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -323,8 +323,8 @@ int hfsplus_file_extend(struct inode *);
void hfsplus_file_truncate(struct inode *);
/* inode.c */
-extern struct address_space_operations hfsplus_aops;
-extern struct address_space_operations hfsplus_btree_aops;
+extern const struct address_space_operations hfsplus_aops;
+extern const struct address_space_operations hfsplus_btree_aops;
void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index acf66dba3e0..924ecdef809 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -109,7 +109,7 @@ static int hfsplus_writepages(struct address_space *mapping,
return mpage_writepages(mapping, wbc, hfsplus_get_block);
}
-struct address_space_operations hfsplus_btree_aops = {
+const struct address_space_operations hfsplus_btree_aops = {
.readpage = hfsplus_readpage,
.writepage = hfsplus_writepage,
.sync_page = block_sync_page,
@@ -119,7 +119,7 @@ struct address_space_operations hfsplus_btree_aops = {
.releasepage = hfsplus_releasepage,
};
-struct address_space_operations hfsplus_aops = {
+const struct address_space_operations hfsplus_aops = {
.readpage = hfsplus_readpage,
.writepage = hfsplus_writepage,
.sync_page = block_sync_page,
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 0a92fa2336a..d279d5924f2 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -7,7 +7,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pagemap.h>
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 8e0d37743e7..b82e3d9c879 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -54,7 +54,7 @@ static int append = 0;
static struct inode_operations hostfs_iops;
static struct inode_operations hostfs_dir_iops;
-static struct address_space_operations hostfs_link_aops;
+static const struct address_space_operations hostfs_link_aops;
#ifndef MODULE
static int __init hostfs_args(char *options, int *add)
@@ -518,7 +518,7 @@ int hostfs_commit_write(struct file *file, struct page *page, unsigned from,
return(err);
}
-static struct address_space_operations hostfs_aops = {
+static const struct address_space_operations hostfs_aops = {
.writepage = hostfs_writepage,
.readpage = hostfs_readpage,
.set_page_dirty = __set_page_dirty_nobuffers,
@@ -935,7 +935,7 @@ int hostfs_link_readpage(struct file *file, struct page *page)
return(err);
}
-static struct address_space_operations hostfs_link_aops = {
+static const struct address_space_operations hostfs_link_aops = {
.readpage = hostfs_link_readpage,
};
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index d3b9fffe45a..d9eb19b7b8a 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -99,7 +99,7 @@ static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,hpfs_get_block);
}
-struct address_space_operations hpfs_aops = {
+const struct address_space_operations hpfs_aops = {
.readpage = hpfs_readpage,
.writepage = hpfs_writepage,
.sync_page = block_sync_page,
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 29b7a3e5517..f687d54ed44 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -268,7 +268,7 @@ void hpfs_set_ea(struct inode *, struct fnode *, char *, char *, int);
int hpfs_file_fsync(struct file *, struct dentry *, int);
extern const struct file_operations hpfs_file_ops;
extern struct inode_operations hpfs_file_iops;
-extern struct address_space_operations hpfs_aops;
+extern const struct address_space_operations hpfs_aops;
/* inode.c */
@@ -304,7 +304,7 @@ void hpfs_decide_conv(struct inode *, unsigned char *, unsigned);
/* namei.c */
extern struct inode_operations hpfs_dir_iops;
-extern struct address_space_operations hpfs_symlink_aops;
+extern const struct address_space_operations hpfs_symlink_aops;
static inline struct hpfs_inode_info *hpfs_i(struct inode *inode)
{
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index a03abb12c61..59e7dc182a0 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -538,7 +538,7 @@ fail:
return err;
}
-struct address_space_operations hpfs_symlink_aops = {
+const struct address_space_operations hpfs_symlink_aops = {
.readpage = hpfs_symlink_readpage
};
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index e6410d8edd0..6449cb69796 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -34,7 +34,7 @@
#define HUGETLBFS_MAGIC 0x958458f6
static struct super_operations hugetlbfs_ops;
-static struct address_space_operations hugetlbfs_aops;
+static const struct address_space_operations hugetlbfs_aops;
const struct file_operations hugetlbfs_file_operations;
static struct inode_operations hugetlbfs_dir_inode_operations;
static struct inode_operations hugetlbfs_inode_operations;
@@ -547,7 +547,7 @@ static void hugetlbfs_destroy_inode(struct inode *inode)
kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
}
-static struct address_space_operations hugetlbfs_aops = {
+static const struct address_space_operations hugetlbfs_aops = {
.readpage = hugetlbfs_readpage,
.prepare_write = hugetlbfs_prepare_write,
.commit_write = hugetlbfs_commit_write,
diff --git a/fs/inode.c b/fs/inode.c
index 3a2446a27d2..0bf9f0444a9 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -4,7 +4,6 @@
* (C) 1997 Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/dcache.h>
@@ -102,7 +101,7 @@ static kmem_cache_t * inode_cachep __read_mostly;
static struct inode *alloc_inode(struct super_block *sb)
{
- static struct address_space_operations empty_aops;
+ static const struct address_space_operations empty_aops;
static struct inode_operations empty_iops;
static const struct file_operations empty_fops;
struct inode *inode;
@@ -452,15 +451,14 @@ static void prune_icache(int nr_to_scan)
nr_pruned++;
}
inodes_stat.nr_unused -= nr_pruned;
+ if (current_is_kswapd())
+ __count_vm_events(KSWAPD_INODESTEAL, reap);
+ else
+ __count_vm_events(PGINODESTEAL, reap);
spin_unlock(&inode_lock);
dispose_list(&freeable);
mutex_unlock(&iprune_mutex);
-
- if (current_is_kswapd())
- mod_page_state(kswapd_inodesteal, reap);
- else
- mod_page_state(pginodesteal, reap);
}
/*
diff --git a/fs/ioctl.c b/fs/ioctl.c
index f8aeec3ca10..4b7660b09ac 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -4,7 +4,6 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
#include <linux/smp_lock.h>
diff --git a/fs/ioprio.c b/fs/ioprio.c
index 7fa76ed53c1..93aa5715f22 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -125,11 +125,24 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio)
return ret;
}
+static int get_task_ioprio(struct task_struct *p)
+{
+ int ret;
+
+ ret = security_task_getioprio(p);
+ if (ret)
+ goto out;
+ ret = p->ioprio;
+out:
+ return ret;
+}
+
asmlinkage long sys_ioprio_get(int which, int who)
{
struct task_struct *g, *p;
struct user_struct *user;
int ret = -ESRCH;
+ int tmpio;
read_lock_irq(&tasklist_lock);
switch (which) {
@@ -139,16 +152,19 @@ asmlinkage long sys_ioprio_get(int which, int who)
else
p = find_task_by_pid(who);
if (p)
- ret = p->ioprio;
+ ret = get_task_ioprio(p);
break;
case IOPRIO_WHO_PGRP:
if (!who)
who = process_group(current);
do_each_task_pid(who, PIDTYPE_PGID, p) {
+ tmpio = get_task_ioprio(p);
+ if (tmpio < 0)
+ continue;
if (ret == -ESRCH)
- ret = p->ioprio;
+ ret = tmpio;
else
- ret = ioprio_best(ret, p->ioprio);
+ ret = ioprio_best(ret, tmpio);
} while_each_task_pid(who, PIDTYPE_PGID, p);
break;
case IOPRIO_WHO_USER:
@@ -163,10 +179,13 @@ asmlinkage long sys_ioprio_get(int which, int who)
do_each_thread(g, p) {
if (p->uid != user->uid)
continue;
+ tmpio = get_task_ioprio(p);
+ if (tmpio < 0)
+ continue;
if (ret == -ESRCH)
- ret = p->ioprio;
+ ret = tmpio;
else
- ret = ioprio_best(ret, p->ioprio);
+ ret = ioprio_best(ret, tmpio);
} while_each_thread(g, p);
if (who)
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index 4917315db73..731816332b1 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -16,7 +16,6 @@
* Transparent decompression of files on an iso9660 filesystem
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -312,7 +311,7 @@ eio:
return err;
}
-struct address_space_operations zisofs_aops = {
+const struct address_space_operations zisofs_aops = {
.readpage = zisofs_readpage,
/* No sync_page operation supported? */
/* No bmap operation supported */
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 5440ea292c6..27e276987fd 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -10,7 +10,6 @@
*
* isofs directory handling functions
*/
-#include <linux/config.h>
#include <linux/smp_lock.h>
#include "isofs.h"
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 3f9c8ba1fa1..14391361c88 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -11,7 +11,6 @@
* 2004 Paul Serice - NFS Export Operations
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -1054,7 +1053,7 @@ static sector_t _isofs_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping,block,isofs_get_block);
}
-static struct address_space_operations isofs_aops = {
+static const struct address_space_operations isofs_aops = {
.readpage = isofs_readpage,
.sync_page = block_sync_page,
.bmap = _isofs_bmap
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index b87ba066f5e..e6308c8b573 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -176,5 +176,5 @@ isofs_normalize_block_and_offset(struct iso_directory_record* de,
extern struct inode_operations isofs_dir_inode_operations;
extern const struct file_operations isofs_dir_operations;
-extern struct address_space_operations isofs_symlink_aops;
+extern const struct address_space_operations isofs_symlink_aops;
extern struct export_operations isofs_export_ops;
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 4326cb47f8f..f3a1db3098d 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -754,6 +754,6 @@ error:
return -EIO;
}
-struct address_space_operations isofs_symlink_aops = {
+const struct address_space_operations isofs_symlink_aops = {
.readpage = rock_ridge_symlink_readpage
};
diff --git a/fs/isofs/zisofs.h b/fs/isofs/zisofs.h
index d78485d101c..27379570915 100644
--- a/fs/isofs/zisofs.h
+++ b/fs/isofs/zisofs.h
@@ -15,7 +15,7 @@
*/
#ifdef CONFIG_ZISOFS
-extern struct address_space_operations zisofs_aops;
+extern const struct address_space_operations zisofs_aops;
extern int __init zisofs_init(void);
extern void zisofs_cleanup(void);
#endif
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
index 9e46ea6da75..93068697a9b 100644
--- a/fs/jffs/inode-v23.c
+++ b/fs/jffs/inode-v23.c
@@ -59,7 +59,7 @@ static const struct file_operations jffs_file_operations;
static struct inode_operations jffs_file_inode_operations;
static const struct file_operations jffs_dir_operations;
static struct inode_operations jffs_dir_inode_operations;
-static struct address_space_operations jffs_address_operations;
+static const struct address_space_operations jffs_address_operations;
kmem_cache_t *node_cache = NULL;
kmem_cache_t *fm_cache = NULL;
@@ -1614,7 +1614,7 @@ jffs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
} /* jffs_ioctl() */
-static struct address_space_operations jffs_address_operations = {
+static const struct address_space_operations jffs_address_operations = {
.readpage = jffs_readpage,
.prepare_write = jffs_prepare_write,
.commit_write = jffs_commit_write,
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c
index 5371a403130..9000f1effed 100644
--- a/fs/jffs/intrep.c
+++ b/fs/jffs/intrep.c
@@ -55,7 +55,6 @@
*
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/jffs.h>
diff --git a/fs/jffs/jffs_fm.h b/fs/jffs/jffs_fm.h
index c794d923df2..9ee6ad29eff 100644
--- a/fs/jffs/jffs_fm.h
+++ b/fs/jffs/jffs_fm.h
@@ -20,7 +20,6 @@
#ifndef __LINUX_JFFS_FM_H__
#define __LINUX_JFFS_FM_H__
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/jffs.h>
#include <linux/mtd/mtd.h>
diff --git a/fs/jffs2/compr_zlib.c b/fs/jffs2/compr_zlib.c
index 5c63e0cdcf4..3681d0728ac 100644
--- a/fs/jffs2/compr_zlib.c
+++ b/fs/jffs2/compr_zlib.c
@@ -15,7 +15,6 @@
#error "The userspace support got too messy and was removed. Update your mkfs.jffs2"
#endif
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/slab.h>
diff --git a/fs/jffs2/debug.h b/fs/jffs2/debug.h
index 5fa494a792b..3daf3bca037 100644
--- a/fs/jffs2/debug.h
+++ b/fs/jffs2/debug.h
@@ -13,7 +13,6 @@
#ifndef _JFFS2_DEBUG_H_
#define _JFFS2_DEBUG_H_
-#include <linux/config.h>
#ifndef CONFIG_JFFS2_FS_DEBUG
#define CONFIG_JFFS2_FS_DEBUG 0
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index bb8844f40e4..3ed6e3e120b 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -62,7 +62,7 @@ struct inode_operations jffs2_file_inode_operations =
.removexattr = jffs2_removexattr
};
-struct address_space_operations jffs2_file_address_operations =
+const struct address_space_operations jffs2_file_address_operations =
{
.readpage = jffs2_readpage,
.prepare_write =jffs2_prepare_write,
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 97caa77d60c..4780f82825d 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -12,7 +12,6 @@
*/
#include <linux/capability.h>
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/fs.h>
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index be6d4a4dd8e..cae92c14116 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -14,7 +14,6 @@
#ifndef __JFFS2_NODELIST_H__
#define __JFFS2_NODELIST_H__
-#include <linux/config.h>
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/jffs2.h>
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 6b522356540..9f41fc01a37 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -158,7 +158,7 @@ extern struct inode_operations jffs2_dir_inode_operations;
/* file.c */
extern const struct file_operations jffs2_file_operations;
extern struct inode_operations jffs2_file_inode_operations;
-extern struct address_space_operations jffs2_file_address_operations;
+extern const struct address_space_operations jffs2_file_address_operations;
int jffs2_fsync(struct file *, struct dentry *, int);
int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 2378a662c25..68e3953419b 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -11,7 +11,6 @@
*
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 04eb78f1252..43e3f566aad 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -305,7 +305,7 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb,
offset, nr_segs, jfs_get_block, NULL);
}
-struct address_space_operations jfs_aops = {
+const struct address_space_operations jfs_aops = {
.readpage = jfs_readpage,
.readpages = jfs_readpages,
.writepage = jfs_writepage,
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index c3007267446..b5c7da6190d 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -33,7 +33,7 @@ extern void jfs_free_zero_link(struct inode *);
extern struct dentry *jfs_get_parent(struct dentry *dentry);
extern void jfs_set_inode_flags(struct inode *);
-extern struct address_space_operations jfs_aops;
+extern const struct address_space_operations jfs_aops;
extern struct inode_operations jfs_dir_inode_operations;
extern const struct file_operations jfs_dir_operations;
extern struct inode_operations jfs_file_inode_operations;
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 7f6e8803970..e1e0a6e6ebd 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -577,7 +577,7 @@ static void metapage_invalidatepage(struct page *page, unsigned long offset)
metapage_releasepage(page, 0);
}
-struct address_space_operations jfs_metapage_aops = {
+const struct address_space_operations jfs_metapage_aops = {
.readpage = metapage_readpage,
.writepage = metapage_writepage,
.sync_page = block_sync_page,
diff --git a/fs/jfs/jfs_metapage.h b/fs/jfs/jfs_metapage.h
index f0b7d3282b0..d17a3290f5a 100644
--- a/fs/jfs/jfs_metapage.h
+++ b/fs/jfs/jfs_metapage.h
@@ -139,7 +139,7 @@ static inline void metapage_homeok(struct metapage *mp)
put_metapage(mp);
}
-extern struct address_space_operations jfs_metapage_aops;
+extern const struct address_space_operations jfs_metapage_aops;
/*
* This routines invalidate all pages for an extent.
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index ac3d66948e8..10c46231ce1 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -842,7 +842,7 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
TXN_UNLOCK();
release_metapage(mp);
TXN_LOCK();
- xtid = tlck->tid; /* reaquire after dropping TXN_LOCK */
+ xtid = tlck->tid; /* reacquire after dropping TXN_LOCK */
jfs_info("txLock: in waitLock, tid = %d, xtid = %d, lid = %d",
tid, xtid, lid);
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 73d2aba084c..4f6cfebc82d 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -18,7 +18,6 @@
*/
#include <linux/fs.h>
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/parser.h>
#include <linux/completion.h>
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 4db62098d3f..5980c45998c 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -6,7 +6,6 @@
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index fd56c8872f3..9a991b52c64 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -12,7 +12,6 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sysctl.h>
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 3ef739120df..baf5ae51348 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -20,7 +20,6 @@
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index d210cf304e9..dbb66a3b5cd 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -7,7 +7,6 @@
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/time.h>
#include <linux/slab.h>
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index a570e5c8a93..2a4df9b3779 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -6,7 +6,6 @@
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/time.h>
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index f22a3764461..033ea4ac2c3 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -6,7 +6,6 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/utsname.h>
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index a6fb509b734..9ea91c5eeb7 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -335,7 +335,7 @@ static sector_t minix_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,minix_get_block);
}
-static struct address_space_operations minix_aops = {
+static const struct address_space_operations minix_aops = {
.readpage = minix_readpage,
.writepage = minix_writepage,
.sync_page = block_sync_page,
diff --git a/fs/namei.c b/fs/namei.c
index c784e8bb57a..c9750d755af 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1423,7 +1423,7 @@ struct dentry *lock_rename(struct dentry *p1, struct dentry *p2)
struct dentry *p;
if (p1 == p2) {
- mutex_lock(&p1->d_inode->i_mutex);
+ mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);
return NULL;
}
@@ -1431,22 +1431,22 @@ struct dentry *lock_rename(struct dentry *p1, struct dentry *p2)
for (p = p1; p->d_parent != p; p = p->d_parent) {
if (p->d_parent == p2) {
- mutex_lock(&p2->d_inode->i_mutex);
- mutex_lock(&p1->d_inode->i_mutex);
+ mutex_lock_nested(&p2->d_inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_CHILD);
return p;
}
}
for (p = p2; p->d_parent != p; p = p->d_parent) {
if (p->d_parent == p1) {
- mutex_lock(&p1->d_inode->i_mutex);
- mutex_lock(&p2->d_inode->i_mutex);
+ mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&p2->d_inode->i_mutex, I_MUTEX_CHILD);
return p;
}
}
- mutex_lock(&p1->d_inode->i_mutex);
- mutex_lock(&p2->d_inode->i_mutex);
+ mutex_lock_nested(&p1->d_inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&p2->d_inode->i_mutex, I_MUTEX_CHILD);
return NULL;
}
@@ -1751,7 +1751,7 @@ struct dentry *lookup_create(struct nameidata *nd, int is_dir)
{
struct dentry *dentry = ERR_PTR(-EEXIST);
- mutex_lock(&nd->dentry->d_inode->i_mutex);
+ mutex_lock_nested(&nd->dentry->d_inode->i_mutex, I_MUTEX_PARENT);
/*
* Yucky last component or no last component at all?
* (foo/., foo/.., /////)
@@ -2008,7 +2008,7 @@ static long do_rmdir(int dfd, const char __user *pathname)
error = -EBUSY;
goto exit1;
}
- mutex_lock(&nd.dentry->d_inode->i_mutex);
+ mutex_lock_nested(&nd.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_hash(&nd);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
@@ -2082,7 +2082,7 @@ static long do_unlinkat(int dfd, const char __user *pathname)
error = -EISDIR;
if (nd.last_type != LAST_NORM)
goto exit1;
- mutex_lock(&nd.dentry->d_inode->i_mutex);
+ mutex_lock_nested(&nd.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
dentry = lookup_hash(&nd);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
diff --git a/fs/namespace.c b/fs/namespace.c
index b3ed212ea41..fa7ed6a9fc2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -8,7 +8,6 @@
* Heavily rewritten.
*/
-#include <linux/config.h>
#include <linux/syscalls.h>
#include <linux/slab.h>
#include <linux/sched.h>
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index f0860c602d8..b4ee89250e9 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -10,7 +10,6 @@
*
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/errno.h>
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 90d2ea28f33..1ddf77b0b82 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -9,7 +9,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <asm/system.h>
@@ -105,7 +104,7 @@ static struct super_operations ncp_sops =
extern struct dentry_operations ncp_root_dentry_operations;
#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
-extern struct address_space_operations ncp_symlink_aops;
+extern const struct address_space_operations ncp_symlink_aops;
extern int ncp_symlink(struct inode*, struct dentry*, const char*);
#endif
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index eb3813ad136..42039fe0653 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -7,7 +7,6 @@
*
*/
-#include <linux/config.h>
#include <asm/uaccess.h>
#include <linux/capability.h>
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index 52d60c3d899..e7d5a3097fe 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -93,7 +93,7 @@ static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
*/
if (type)
*type = VM_FAULT_MAJOR;
- inc_page_state(pgmajfault);
+ count_vm_event(PGMAJFAULT);
return page;
}
diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
index d9ebf6439f5..551e0bac7aa 100644
--- a/fs/ncpfs/ncplib_kernel.c
+++ b/fs/ncpfs/ncplib_kernel.c
@@ -10,7 +10,6 @@
*/
-#include <linux/config.h>
#include "ncplib_kernel.h"
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
index 799e5c2bec5..2441d1ab57d 100644
--- a/fs/ncpfs/ncplib_kernel.h
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -12,7 +12,6 @@
#ifndef _NCPLIB_H
#define _NCPLIB_H
-#include <linux/config.h>
#include <linux/fs.h>
#include <linux/types.h>
diff --git a/fs/ncpfs/ncpsign_kernel.c b/fs/ncpfs/ncpsign_kernel.c
index a6ec90cd889..749a18d3359 100644
--- a/fs/ncpfs/ncpsign_kernel.c
+++ b/fs/ncpfs/ncpsign_kernel.c
@@ -5,7 +5,6 @@
*
*/
-#include <linux/config.h>
#ifdef CONFIG_NCPFS_PACKET_SIGNING
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index 8783eb7ec64..11c2b252ebe 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -8,7 +8,6 @@
*
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/errno.h>
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c
index e935f1b34bc..ca92c240663 100644
--- a/fs/ncpfs/symlink.c
+++ b/fs/ncpfs/symlink.c
@@ -20,7 +20,6 @@
*
*/
-#include <linux/config.h>
#include <asm/uaccess.h>
@@ -99,7 +98,7 @@ fail:
/*
* symlinks can't do much...
*/
-struct address_space_operations ncp_symlink_aops = {
+const struct address_space_operations ncp_symlink_aops = {
.readpage = ncp_symlink_readpage,
};
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index d53f8c6a9ec..fe0a6b8ac14 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -6,7 +6,6 @@
* NFSv4 callback handling
*/
-#include <linux/config.h>
#include <linux/completion.h>
#include <linux/ip.h>
#include <linux/module.h>
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 462cfceb50c..7719483ecdf 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -5,7 +5,6 @@
*
* NFSv4 callback procedures
*/
-#include <linux/config.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include "nfs4_fs.h"
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index c92991328d9..29f93219205 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -5,7 +5,6 @@
*
* NFSv4 callback encode/decode procedures
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfs4.h>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d3be923d4e4..9540a316c05 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -6,7 +6,6 @@
* NFS file delegation management
*
*/
-#include <linux/config.h>
#include <linux/completion.h>
#include <linux/kthread.h>
#include <linux/module.h>
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 8ca9707be6c..4cdd1b499e3 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -38,7 +38,6 @@
*
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index add28913883..cc2b874ad5a 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -315,7 +315,7 @@ static int nfs_release_page(struct page *page, gfp_t gfp)
return !nfs_wb_page(page->mapping->host, page);
}
-struct address_space_operations nfs_file_aops = {
+const struct address_space_operations nfs_file_aops = {
.readpage = nfs_readpage,
.readpages = nfs_readpages,
.set_page_dirty = __set_page_dirty_nobuffers,
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index c5b916605fb..d349fb2245d 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -13,7 +13,6 @@
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 4fe51c1292b..e4f4e5def0f 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -81,9 +81,9 @@ extern struct file_system_type clone_nfs_fs_type;
#ifdef CONFIG_NFS_V4
extern struct file_system_type clone_nfs4_fs_type;
#endif
-#ifdef CONFIG_PROC_FS
+
extern struct rpc_stat nfs_rpcstat;
-#endif
+
extern int __init register_nfs_fs(void);
extern void __exit unregister_nfs_fs(void);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 96e5b82c153..090a36b07a2 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -38,7 +38,6 @@
* subsequent patch.
*/
-#include <linux/config.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index d89f6fb3b3a..36e902a88ca 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -9,7 +9,6 @@
*
*/
-#include <linux/config.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/sunrpc/clnt.h>
@@ -315,6 +314,7 @@ nfs_scan_lock_dirty(struct nfs_inode *nfsi, struct list_head *dst,
req->wb_index, NFS_PAGE_TAG_DIRTY);
nfs_list_remove_request(req);
nfs_list_add_request(req, dst);
+ dec_zone_page_state(req->wb_page, NR_FILE_DIRTY);
res++;
}
}
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 32cf3773af0..52bf634260a 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -15,7 +15,6 @@
* within the RPC code when root squashing is suspected.
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/errno.h>
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index db61e51bb15..2fe3403c240 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -3,7 +3,6 @@
*
* Sysctl interface to NFS parameters
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/linkage.h>
#include <linux/ctype.h>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 8fccb9cb173..bca5734ca9f 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -46,7 +46,6 @@
* Copyright (C) 1996, 1997, Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/mm.h>
@@ -497,7 +496,7 @@ nfs_mark_request_dirty(struct nfs_page *req)
nfs_list_add_request(req, &nfsi->dirty);
nfsi->ndirty++;
spin_unlock(&nfsi->req_lock);
- inc_page_state(nr_dirty);
+ inc_zone_page_state(req->wb_page, NR_FILE_DIRTY);
mark_inode_dirty(inode);
}
@@ -525,7 +524,7 @@ nfs_mark_request_commit(struct nfs_page *req)
nfs_list_add_request(req, &nfsi->commit);
nfsi->ncommit++;
spin_unlock(&nfsi->req_lock);
- inc_page_state(nr_unstable);
+ inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
mark_inode_dirty(inode);
}
#endif
@@ -609,7 +608,6 @@ nfs_scan_dirty(struct inode *inode, struct list_head *dst, unsigned long idx_sta
if (nfsi->ndirty != 0) {
res = nfs_scan_lock_dirty(nfsi, dst, idx_start, npages);
nfsi->ndirty -= res;
- sub_page_state(nr_dirty,res);
if ((nfsi->ndirty == 0) != list_empty(&nfsi->dirty))
printk(KERN_ERR "NFS: desynchronized value of nfs_i.ndirty.\n");
}
@@ -1394,7 +1392,6 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_page *req;
- int res = 0;
dprintk("NFS: %4d nfs_commit_done (status %d)\n",
task->tk_pid, task->tk_status);
@@ -1406,6 +1403,7 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
+ dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dprintk("NFS: commit (%s/%Ld %d@%Ld)",
req->wb_context->dentry->d_inode->i_sb->s_id,
@@ -1432,9 +1430,7 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
nfs_mark_request_dirty(req);
next:
nfs_clear_page_writeback(req);
- res++;
}
- sub_page_state(nr_unstable,res);
}
static const struct rpc_call_ops nfs_commit_ops = {
diff --git a/fs/nfsctl.c b/fs/nfsctl.c
index a5a18d4aca4..c043136a82c 100644
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -4,7 +4,6 @@
* This should eventually move to userland.
*
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/file.h>
#include <linux/fs.h>
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 3eec30000f3..01bc68c628a 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -126,7 +126,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
if (*ep)
goto out;
dprintk("found fsidtype %d\n", fsidtype);
- if (fsidtype > 2)
+ if (key_len(fsidtype)==0) /* invalid type */
goto out;
if ((len=qword_get(&mesg, buf, PAGE_SIZE)) <= 0)
goto out;
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index dbaf3f93f32..54b37b1d2e3 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -33,7 +33,6 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/inet.h>
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 4b6aa60dfce..bea6b947811 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -34,7 +34,6 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 7c7d01672d3..9daa0b9feb8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1237,8 +1237,15 @@ find_file(struct inode *ino)
return NULL;
}
-#define TEST_ACCESS(x) ((x > 0 || x < 4)?1:0)
-#define TEST_DENY(x) ((x >= 0 || x < 5)?1:0)
+static int access_valid(u32 x)
+{
+ return (x > 0 && x < 4);
+}
+
+static int deny_valid(u32 x)
+{
+ return (x >= 0 && x < 5);
+}
static void
set_access(unsigned int *access, unsigned long bmap) {
@@ -1745,7 +1752,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
int status;
status = nfserr_inval;
- if (!TEST_ACCESS(open->op_share_access) || !TEST_DENY(open->op_share_deny))
+ if (!access_valid(open->op_share_access)
+ || !deny_valid(open->op_share_deny))
goto out;
/*
* Lookup file; if found, lookup stateid and check open request,
@@ -1782,10 +1790,10 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
} else {
/* Stateid was not found, this is a new OPEN */
int flags = 0;
+ if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
+ flags |= MAY_READ;
if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
- flags = MAY_WRITE;
- else
- flags = MAY_READ;
+ flags |= MAY_WRITE;
status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
if (status)
goto out;
@@ -2070,16 +2078,12 @@ nfs4_preprocess_stateid_op(struct svc_fh *current_fh, stateid_t *stateid, int fl
if (!stateid->si_fileid) { /* delegation stateid */
if(!(dp = find_delegation_stateid(ino, stateid))) {
dprintk("NFSD: delegation stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
stidp = &dp->dl_stateid;
} else { /* open or lock stateid */
if (!(stp = find_stateid(stateid, flags))) {
dprintk("NFSD: open or lock stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp))
@@ -2252,8 +2256,9 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfs
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if ((status = fh_verify(rqstp, current_fh, S_IFREG, 0)))
- goto out;
+ status = fh_verify(rqstp, current_fh, S_IFREG, 0);
+ if (status)
+ return status;
nfs4_lock_state();
@@ -2320,7 +2325,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct n
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if (!TEST_ACCESS(od->od_share_access) || !TEST_DENY(od->od_share_deny))
+ if (!access_valid(od->od_share_access)
+ || !deny_valid(od->od_share_deny))
return nfserr_inval;
nfs4_lock_state();
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index a1810e6a93e..7046ac9cf97 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -6,7 +6,6 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/linkage.h>
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3f2ec2e6d06..ecc439d2565 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -187,13 +187,6 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
goto out;
}
- /* Set user creds for this exportpoint */
- error = nfsd_setuser(rqstp, exp);
- if (error) {
- error = nfserrno(error);
- goto out;
- }
-
/*
* Look up the dentry using the NFS file handle.
*/
@@ -251,6 +244,14 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
}
cache_get(&exp->h);
+ /* Set user creds for this exportpoint; necessary even in the "just
+ * checking" case because this may be a filehandle that was created by
+ * fh_compose, and that is about to be used in another nfsv4 compound
+ * operation */
+ error = nfserrno(nfsd_setuser(rqstp, exp));
+ if (error)
+ goto out;
+
error = nfsd_mode_check(rqstp, dentry->d_inode->i_mode, type);
if (error)
goto out;
@@ -312,8 +313,8 @@ int
fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, struct svc_fh *ref_fh)
{
/* ref_fh is a reference file handle.
- * if it is non-null, then we should compose a filehandle which is
- * of the same version, where possible.
+ * if it is non-null and for the same filesystem, then we should compose
+ * a filehandle which is of the same version, where possible.
* Currently, that means that if ref_fh->fh_handle.fh_version == 0xca
* Then create a 32byte filehandle using nfs_fhbase_old
*
@@ -332,7 +333,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, st
parent->d_name.name, dentry->d_name.name,
(inode ? inode->i_ino : 0));
- if (ref_fh) {
+ if (ref_fh && ref_fh->fh_export == exp) {
ref_fh_version = ref_fh->fh_handle.fh_version;
if (ref_fh_version == 0xca)
ref_fh_fsid_type = 0;
@@ -461,7 +462,7 @@ fh_update(struct svc_fh *fhp)
} else {
int size;
if (fhp->fh_handle.fh_fileid_type != 0)
- goto out_uptodate;
+ goto out;
datap = fhp->fh_handle.fh_auth+
fhp->fh_handle.fh_size/4 -1;
size = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
@@ -481,10 +482,6 @@ out_negative:
printk(KERN_ERR "fh_update: %s/%s still negative!\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
goto out;
-out_uptodate:
- printk(KERN_ERR "fh_update: %s/%s already up-to-date!\n",
- dentry->d_parent->d_name.name, dentry->d_name.name);
- goto out;
}
/*
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 3790727e5df..ec1decf29ba 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -8,7 +8,6 @@
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/time.h>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 245eaa1fb59..c9e3b5a8fe0 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -16,7 +16,6 @@
* Zerocpy NFS support (C) 2002 Hirokazu Takahashi <taka@valinux.co.jp>
*/
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/time.h>
#include <linux/errno.h>
@@ -673,7 +672,10 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
goto out_nfserr;
if (access & MAY_WRITE) {
- flags = O_WRONLY|O_LARGEFILE;
+ if (access & MAY_READ)
+ flags = O_RDWR|O_LARGEFILE;
+ else
+ flags = O_WRONLY|O_LARGEFILE;
DQUOT_INIT(inode);
}
@@ -834,7 +836,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
if (ra && ra->p_set)
file->f_ra = ra->p_ra;
- if (file->f_op->sendfile) {
+ if (file->f_op->sendfile && rqstp->rq_sendfile_ok) {
svc_pushback_unused_pages(rqstp);
err = file->f_op->sendfile(file, &offset, *count,
nfsd_read_actor, rqstp);
@@ -1517,14 +1519,15 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
err = nfserrno(err);
}
- fh_unlock(ffhp);
dput(dnew);
+out_unlock:
+ fh_unlock(ffhp);
out:
return err;
out_nfserr:
err = nfserrno(err);
- goto out;
+ goto out_unlock;
}
/*
@@ -1553,7 +1556,7 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
tdir = tdentry->d_inode;
err = (rqstp->rq_vers == 2) ? nfserr_acces : nfserr_xdev;
- if (fdir->i_sb != tdir->i_sb)
+ if (ffhp->fh_export != tfhp->fh_export)
goto out;
err = nfserr_perm;
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index a912debcd20..9de6b495f11 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/string.h>
-#include <linux/config.h>
#include <linux/nls.h>
#include <linux/kernel.h>
#include <linux/errno.h>
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 580412d330c..bc579bfdfbd 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -1544,7 +1544,7 @@ err_out:
/**
* ntfs_aops - general address space operations for inodes and attributes
*/
-struct address_space_operations ntfs_aops = {
+const struct address_space_operations ntfs_aops = {
.readpage = ntfs_readpage, /* Fill page with data. */
.sync_page = block_sync_page, /* Currently, just unplugs the
disk request queue. */
@@ -1560,7 +1560,7 @@ struct address_space_operations ntfs_aops = {
* ntfs_mst_aops - general address space operations for mst protecteed inodes
* and attributes
*/
-struct address_space_operations ntfs_mst_aops = {
+const struct address_space_operations ntfs_mst_aops = {
.readpage = ntfs_readpage, /* Fill page with data. */
.sync_page = block_sync_page, /* Currently, just unplugs the
disk request queue. */
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 4c86b7e1d1e..d313f356e66 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -367,6 +367,12 @@ static void ntfs_destroy_extent_inode(ntfs_inode *ni)
kmem_cache_free(ntfs_inode_cache, ni);
}
+/*
+ * The attribute runlist lock has separate locking rules from the
+ * normal runlist lock, so split the two lock-classes:
+ */
+static struct lock_class_key attr_list_rl_lock_class;
+
/**
* __ntfs_init_inode - initialize ntfs specific part of an inode
* @sb: super block of mounted volume
@@ -394,6 +400,8 @@ void __ntfs_init_inode(struct super_block *sb, ntfs_inode *ni)
ni->attr_list_size = 0;
ni->attr_list = NULL;
ntfs_init_runlist(&ni->attr_list_rl);
+ lockdep_set_class(&ni->attr_list_rl.lock,
+ &attr_list_rl_lock_class);
ni->itype.index.bmp_ino = NULL;
ni->itype.index.block_size = 0;
ni->itype.index.vcn_size = 0;
@@ -405,6 +413,13 @@ void __ntfs_init_inode(struct super_block *sb, ntfs_inode *ni)
ni->ext.base_ntfs_ino = NULL;
}
+/*
+ * Extent inodes get MFT-mapped in a nested way, while the base inode
+ * is still mapped. Teach this nesting to the lock validator by creating
+ * a separate class for nested inode's mrec_lock's:
+ */
+static struct lock_class_key extent_inode_mrec_lock_key;
+
inline ntfs_inode *ntfs_new_extent_inode(struct super_block *sb,
unsigned long mft_no)
{
@@ -413,6 +428,7 @@ inline ntfs_inode *ntfs_new_extent_inode(struct super_block *sb,
ntfs_debug("Entering.");
if (likely(ni != NULL)) {
__ntfs_init_inode(sb, ni);
+ lockdep_set_class(&ni->mrec_lock, &extent_inode_mrec_lock_key);
ni->mft_no = mft_no;
ni->type = AT_UNUSED;
ni->name = NULL;
@@ -1722,6 +1738,15 @@ err_out:
return err;
}
+/*
+ * The MFT inode has special locking, so teach the lock validator
+ * about this by splitting off the locking rules of the MFT from
+ * the locking rules of other inodes. The MFT inode can never be
+ * accessed from the VFS side (or even internally), only by the
+ * map_mft functions.
+ */
+static struct lock_class_key mft_ni_runlist_lock_key, mft_ni_mrec_lock_key;
+
/**
* ntfs_read_inode_mount - special read_inode for mount time use only
* @vi: inode to read
@@ -2148,6 +2173,14 @@ int ntfs_read_inode_mount(struct inode *vi)
ntfs_attr_put_search_ctx(ctx);
ntfs_debug("Done.");
ntfs_free(m);
+
+ /*
+ * Split the locking rules of the MFT inode from the
+ * locking rules of other inodes:
+ */
+ lockdep_set_class(&ni->runlist.lock, &mft_ni_runlist_lock_key);
+ lockdep_set_class(&ni->mrec_lock, &mft_ni_mrec_lock_key);
+
return 0;
em_put_err_out:
diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h
index bf7b3d7c093..ddd3d503097 100644
--- a/fs/ntfs/ntfs.h
+++ b/fs/ntfs/ntfs.h
@@ -57,8 +57,8 @@ extern struct kmem_cache *ntfs_attr_ctx_cache;
extern struct kmem_cache *ntfs_index_ctx_cache;
/* The various operations structs defined throughout the driver files. */
-extern struct address_space_operations ntfs_aops;
-extern struct address_space_operations ntfs_mst_aops;
+extern const struct address_space_operations ntfs_aops;
+extern const struct address_space_operations ntfs_mst_aops;
extern const struct file_operations ntfs_file_ops;
extern struct inode_operations ntfs_file_inode_ops;
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 0e14acea3f8..74e0ee8fce7 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -1724,6 +1724,14 @@ upcase_failed:
return FALSE;
}
+/*
+ * The lcn and mft bitmap inodes are NTFS-internal inodes with
+ * their own special locking rules:
+ */
+static struct lock_class_key
+ lcnbmp_runlist_lock_key, lcnbmp_mrec_lock_key,
+ mftbmp_runlist_lock_key, mftbmp_mrec_lock_key;
+
/**
* load_system_files - open the system files using normal functions
* @vol: ntfs super block describing device whose system files to load
@@ -1780,6 +1788,10 @@ static BOOL load_system_files(ntfs_volume *vol)
ntfs_error(sb, "Failed to load $MFT/$BITMAP attribute.");
goto iput_mirr_err_out;
}
+ lockdep_set_class(&NTFS_I(vol->mftbmp_ino)->runlist.lock,
+ &mftbmp_runlist_lock_key);
+ lockdep_set_class(&NTFS_I(vol->mftbmp_ino)->mrec_lock,
+ &mftbmp_mrec_lock_key);
/* Read upcase table and setup @vol->upcase and @vol->upcase_len. */
if (!load_and_init_upcase(vol))
goto iput_mftbmp_err_out;
@@ -1802,6 +1814,11 @@ static BOOL load_system_files(ntfs_volume *vol)
iput(vol->lcnbmp_ino);
goto bitmap_failed;
}
+ lockdep_set_class(&NTFS_I(vol->lcnbmp_ino)->runlist.lock,
+ &lcnbmp_runlist_lock_key);
+ lockdep_set_class(&NTFS_I(vol->lcnbmp_ino)->mrec_lock,
+ &lcnbmp_mrec_lock_key);
+
NInoSetSparseDisabled(NTFS_I(vol->lcnbmp_ino));
if ((vol->nr_clusters + 7) >> 3 > i_size_read(vol->lcnbmp_ino)) {
iput(vol->lcnbmp_ino);
@@ -2743,6 +2760,17 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
struct inode *tmp_ino;
int blocksize, result;
+ /*
+ * We do a pretty difficult piece of bootstrap by reading the
+ * MFT (and other metadata) from disk into memory. We'll only
+ * release this metadata during umount, so the locking patterns
+ * observed during bootstrap do not count. So turn off the
+ * observation of locking patterns (strictly for this context
+ * only) while mounting NTFS. [The validator is still active
+ * otherwise, even for this context: it will for example record
+ * lock class registrations.]
+ */
+ lockdep_off();
ntfs_debug("Entering.");
#ifndef NTFS_RW
sb->s_flags |= MS_RDONLY;
@@ -2754,6 +2782,7 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
if (!silent)
ntfs_error(sb, "Allocation of NTFS volume structure "
"failed. Aborting mount...");
+ lockdep_on();
return -ENOMEM;
}
/* Initialize ntfs_volume structure. */
@@ -2940,6 +2969,7 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
mutex_unlock(&ntfs_lock);
sb->s_export_op = &ntfs_export_ops;
lock_kernel();
+ lockdep_on();
return 0;
}
ntfs_error(sb, "Failed to allocate root directory.");
@@ -3059,6 +3089,7 @@ err_out_now:
sb->s_fs_info = NULL;
kfree(vol);
ntfs_debug("Failed, returning -EINVAL.");
+ lockdep_on();
return -EINVAL;
}
diff --git a/fs/ntfs/sysctl.h b/fs/ntfs/sysctl.h
index c8064cae8f1..beda5bf9640 100644
--- a/fs/ntfs/sysctl.h
+++ b/fs/ntfs/sysctl.h
@@ -24,7 +24,6 @@
#ifndef _LINUX_NTFS_SYSCTL_H
#define _LINUX_NTFS_SYSCTL_H
-#include <linux/config.h>
#if defined(DEBUG) && defined(CONFIG_SYSCTL)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 47152bf9a7f..f1d1c342ce0 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -558,16 +558,9 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock,
u64 vbo_max; /* file offset, max_blocks from iblock */
u64 p_blkno;
int contig_blocks;
- unsigned char blocksize_bits;
+ unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits;
- if (!inode || !bh_result) {
- mlog(ML_ERROR, "inode or bh_result is null\n");
- return -EIO;
- }
-
- blocksize_bits = inode->i_sb->s_blocksize_bits;
-
/* This function won't even be called if the request isn't all
* nicely aligned and of the right size, so there's no need
* for us to check any of that. */
@@ -666,7 +659,7 @@ out:
return ret;
}
-struct address_space_operations ocfs2_aops = {
+const struct address_space_operations ocfs2_aops = {
.readpage = ocfs2_readpage,
.writepage = ocfs2_writepage,
.prepare_write = ocfs2_prepare_write,
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 1d26cfcd9f8..504595d6cf6 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -517,6 +517,7 @@ static inline void o2hb_prepare_block(struct o2hb_region *reg,
hb_block->hb_seq = cpu_to_le64(cputime);
hb_block->hb_node = node_num;
hb_block->hb_generation = cpu_to_le64(generation);
+ hb_block->hb_dead_ms = cpu_to_le32(o2hb_dead_threshold * O2HB_REGION_TIMEOUT_MS);
/* This step must always happen last! */
hb_block->hb_cksum = cpu_to_le32(o2hb_compute_block_crc_le(reg,
@@ -645,6 +646,8 @@ static int o2hb_check_slot(struct o2hb_region *reg,
struct o2nm_node *node;
struct o2hb_disk_heartbeat_block *hb_block = reg->hr_tmp_block;
u64 cputime;
+ unsigned int dead_ms = o2hb_dead_threshold * O2HB_REGION_TIMEOUT_MS;
+ unsigned int slot_dead_ms;
memcpy(hb_block, slot->ds_raw_block, reg->hr_block_bytes);
@@ -733,6 +736,23 @@ fire_callbacks:
&o2hb_live_slots[slot->ds_node_num]);
slot->ds_equal_samples = 0;
+
+ /* We want to be sure that all nodes agree on the
+ * number of milliseconds before a node will be
+ * considered dead. The self-fencing timeout is
+ * computed from this value, and a discrepancy might
+ * result in heartbeat calling a node dead when it
+ * hasn't self-fenced yet. */
+ slot_dead_ms = le32_to_cpu(hb_block->hb_dead_ms);
+ if (slot_dead_ms && slot_dead_ms != dead_ms) {
+ /* TODO: Perhaps we can fail the region here. */
+ mlog(ML_ERROR, "Node %d on device %s has a dead count "
+ "of %u ms, but our count is %u ms.\n"
+ "Please double check your configuration values "
+ "for 'O2CB_HEARTBEAT_THRESHOLD'\n",
+ slot->ds_node_num, reg->hr_dev_name, slot_dead_ms,
+ dead_ms);
+ }
goto out;
}
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 73edad78253..a42628ba9dd 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -123,6 +123,17 @@
#define MLOG_MASK_PREFIX 0
#endif
+/*
+ * When logging is disabled, force the bit test to 0 for anything other
+ * than errors and notices, allowing gcc to remove the code completely.
+ * When enabled, allow all masks.
+ */
+#if defined(CONFIG_OCFS2_DEBUG_MASKLOG)
+#define ML_ALLOWED_BITS ~0
+#else
+#define ML_ALLOWED_BITS (ML_ERROR|ML_NOTICE)
+#endif
+
#define MLOG_MAX_BITS 64
struct mlog_bits {
@@ -187,7 +198,8 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
#define mlog(mask, fmt, args...) do { \
u64 __m = MLOG_MASK_PREFIX | (mask); \
- if (__mlog_test_u64(__m, mlog_and_bits) && \
+ if ((__m & ML_ALLOWED_BITS) && \
+ __mlog_test_u64(__m, mlog_and_bits) && \
!__mlog_test_u64(__m, mlog_not_bits)) { \
if (__m & ML_ERROR) \
__mlog_printk(KERN_ERR, "ERROR: "fmt , ##args); \
@@ -204,6 +216,7 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
mlog(ML_ERROR, "status = %lld\n", (long long)_st); \
} while (0)
+#if defined(CONFIG_OCFS2_DEBUG_MASKLOG)
#define mlog_entry(fmt, args...) do { \
mlog(ML_ENTRY, "ENTRY:" fmt , ##args); \
} while (0)
@@ -247,6 +260,13 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
#define mlog_exit_void() do { \
mlog(ML_EXIT, "EXIT\n"); \
} while (0)
+#else
+#define mlog_entry(...) do { } while (0)
+#define mlog_entry_void(...) do { } while (0)
+#define mlog_exit(...) do { } while (0)
+#define mlog_exit_ptr(...) do { } while (0)
+#define mlog_exit_void(...) do { } while (0)
+#endif /* defined(CONFIG_OCFS2_DEBUG_MASKLOG) */
#define mlog_bug_on_msg(cond, fmt, args...) do { \
if (cond) { \
diff --git a/fs/ocfs2/cluster/ocfs2_heartbeat.h b/fs/ocfs2/cluster/ocfs2_heartbeat.h
index 94096069cb4..3f4151da970 100644
--- a/fs/ocfs2/cluster/ocfs2_heartbeat.h
+++ b/fs/ocfs2/cluster/ocfs2_heartbeat.h
@@ -32,6 +32,7 @@ struct o2hb_disk_heartbeat_block {
__u8 hb_pad1[3];
__le32 hb_cksum;
__le64 hb_generation;
+ __le32 hb_dead_ms;
};
#endif /* _OCFS2_HEARTBEAT_H */
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1591eb37a72..b650efa8c8b 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -396,8 +396,8 @@ static void o2net_set_nn_state(struct o2net_node *nn,
}
if (was_valid && !valid) {
- mlog(ML_NOTICE, "no longer connected to " SC_NODEF_FMT "\n",
- SC_NODEF_ARGS(old_sc));
+ printk(KERN_INFO "o2net: no longer connected to "
+ SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc));
o2net_complete_nodes_nsw(nn);
}
@@ -409,10 +409,10 @@ static void o2net_set_nn_state(struct o2net_node *nn,
* the only way to start connecting again is to down
* heartbeat and bring it back up. */
cancel_delayed_work(&nn->nn_connect_expired);
- mlog(ML_NOTICE, "%s " SC_NODEF_FMT "\n",
- o2nm_this_node() > sc->sc_node->nd_num ?
- "connected to" : "accepted connection from",
- SC_NODEF_ARGS(sc));
+ printk(KERN_INFO "o2net: %s " SC_NODEF_FMT "\n",
+ o2nm_this_node() > sc->sc_node->nd_num ?
+ "connected to" : "accepted connection from",
+ SC_NODEF_ARGS(sc));
}
/* trigger the connecting worker func as long as we're not valid,
@@ -1280,7 +1280,7 @@ static void o2net_idle_timer(unsigned long data)
do_gettimeofday(&now);
- mlog(ML_NOTICE, "connection to " SC_NODEF_FMT " has been idle for 10 "
+ printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT " has been idle for 10 "
"seconds, shutting it down.\n", SC_NODEF_ARGS(sc));
mlog(ML_NOTICE, "here are some times that might help debug the "
"situation: (tmr %ld.%ld now %ld.%ld dr %ld.%ld adv "
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index ae47f450792..3d494d1a5f3 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -213,11 +213,9 @@ int ocfs2_find_files_on_disk(const char *name,
struct ocfs2_dir_entry **dirent)
{
int status = -ENOENT;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- mlog_entry("(osb=%p, parent=%llu, name='%.*s', blkno=%p, inode=%p)\n",
- osb, (unsigned long long)OCFS2_I(inode)->ip_blkno,
- namelen, name, blkno, inode);
+ mlog_entry("(name=%.*s, blkno=%p, inode=%p, dirent_bh=%p, dirent=%p)\n",
+ namelen, name, blkno, inode, dirent_bh, dirent);
*dirent_bh = ocfs2_find_entry(name, namelen, inode, dirent);
if (!*dirent_bh || !*dirent) {
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 9bdc9cf6599..14530ee7e11 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -822,8 +822,6 @@ int dlm_begin_reco_handler(struct o2net_msg *msg, u32 len, void *data);
int dlm_finalize_reco_handler(struct o2net_msg *msg, u32 len, void *data);
int dlm_do_master_requery(struct dlm_ctxt *dlm, struct dlm_lock_resource *res,
u8 nodenum, u8 *real_master);
-int dlm_lockres_master_requery(struct dlm_ctxt *dlm,
- struct dlm_lock_resource *res, u8 *real_master);
int dlm_dispatch_assert_master(struct dlm_ctxt *dlm,
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index b8c23f7ba67..8d1065f8b3b 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -408,12 +408,13 @@ static void __dlm_print_nodes(struct dlm_ctxt *dlm)
assert_spin_locked(&dlm->spinlock);
- mlog(ML_NOTICE, "Nodes in my domain (\"%s\"):\n", dlm->name);
+ printk(KERN_INFO "ocfs2_dlm: Nodes in domain (\"%s\"): ", dlm->name);
while ((node = find_next_bit(dlm->domain_map, O2NM_MAX_NODES,
node + 1)) < O2NM_MAX_NODES) {
- mlog(ML_NOTICE, " node %d\n", node);
+ printk("%d ", node);
}
+ printk("\n");
}
static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data)
@@ -429,7 +430,7 @@ static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data)
node = exit_msg->node_idx;
- mlog(0, "Node %u leaves domain %s\n", node, dlm->name);
+ printk(KERN_INFO "ocfs2_dlm: Node %u leaves domain %s\n", node, dlm->name);
spin_lock(&dlm->spinlock);
clear_bit(node, dlm->domain_map);
@@ -678,6 +679,8 @@ static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data)
set_bit(assert->node_idx, dlm->domain_map);
__dlm_set_joining_node(dlm, DLM_LOCK_RES_OWNER_UNKNOWN);
+ printk(KERN_INFO "ocfs2_dlm: Node %u joins domain %s\n",
+ assert->node_idx, dlm->name);
__dlm_print_nodes(dlm);
/* notify anything attached to the heartbeat events */
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 29b2845f370..594745fab0b 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -95,6 +95,9 @@ static void dlm_reco_unlock_ast(void *astdata, enum dlm_status st);
static void dlm_request_all_locks_worker(struct dlm_work_item *item,
void *data);
static void dlm_mig_lockres_worker(struct dlm_work_item *item, void *data);
+static int dlm_lockres_master_requery(struct dlm_ctxt *dlm,
+ struct dlm_lock_resource *res,
+ u8 *real_master);
static u64 dlm_get_next_mig_cookie(void);
@@ -1484,8 +1487,9 @@ leave:
-int dlm_lockres_master_requery(struct dlm_ctxt *dlm,
- struct dlm_lock_resource *res, u8 *real_master)
+static int dlm_lockres_master_requery(struct dlm_ctxt *dlm,
+ struct dlm_lock_resource *res,
+ u8 *real_master)
{
struct dlm_node_iter iter;
int nodenum;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 4acd37286bd..762eb1fbb34 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2071,8 +2071,7 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
}
/* launch vote thread */
- osb->vote_task = kthread_run(ocfs2_vote_thread, osb, "ocfs2vote-%d",
- osb->osb_id);
+ osb->vote_task = kthread_run(ocfs2_vote_thread, osb, "ocfs2vote");
if (IS_ERR(osb->vote_task)) {
status = PTR_ERR(osb->vote_task);
osb->vote_task = NULL;
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 1a5c69071df..fcd4475d1f8 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -298,7 +298,7 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
ret = ocfs2_extent_map_insert(inode, rec,
le16_to_cpu(el->l_tree_depth));
- if (ret) {
+ if (ret && (ret != -EEXIST)) {
mlog_errno(ret);
goto out_free;
}
@@ -427,6 +427,11 @@ static int ocfs2_extent_map_insert_entry(struct ocfs2_extent_map *em,
/*
* Simple rule: on any return code other than -EAGAIN, anything left
* in the insert_context will be freed.
+ *
+ * Simple rule #2: A return code of -EEXIST from this function or
+ * its calls to ocfs2_extent_map_insert_entry() signifies that another
+ * thread beat us to the insert. It is not an actual error, but it
+ * tells the caller we have no more work to do.
*/
static int ocfs2_extent_map_try_insert(struct inode *inode,
struct ocfs2_extent_rec *rec,
@@ -448,22 +453,32 @@ static int ocfs2_extent_map_try_insert(struct inode *inode,
goto out_unlock;
}
+ /* Since insert_entry failed, the map MUST have old_ent */
old_ent = ocfs2_extent_map_lookup(em, le32_to_cpu(rec->e_cpos),
- le32_to_cpu(rec->e_clusters), NULL,
- NULL);
+ le32_to_cpu(rec->e_clusters),
+ NULL, NULL);
BUG_ON(!old_ent);
- ret = -EEXIST;
- if (old_ent->e_tree_depth < tree_depth)
+ if (old_ent->e_tree_depth < tree_depth) {
+ /* Another thread beat us to the lower tree_depth */
+ ret = -EEXIST;
goto out_unlock;
+ }
if (old_ent->e_tree_depth == tree_depth) {
+ /*
+ * Another thread beat us to this tree_depth.
+ * Let's make sure we agree with that thread (the
+ * extent_rec should be identical).
+ */
if (!memcmp(rec, &old_ent->e_rec,
sizeof(struct ocfs2_extent_rec)))
ret = 0;
+ else
+ /* FIXME: Should this be ESRCH/EBADR??? */
+ ret = -EEXIST;
- /* FIXME: Should this be ESRCH/EBADR??? */
goto out_unlock;
}
@@ -599,7 +614,7 @@ static int ocfs2_extent_map_insert(struct inode *inode,
tree_depth, &ctxt);
} while (ret == -EAGAIN);
- if (ret < 0)
+ if ((ret < 0) && (ret != -EEXIST))
mlog_errno(ret);
if (ctxt.left_ent)
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index 84c50796128..35140f6cf84 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -114,7 +114,7 @@ static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode)
extern kmem_cache_t *ocfs2_inode_cache;
-extern struct address_space_operations ocfs2_aops;
+extern const struct address_space_operations ocfs2_aops;
struct buffer_head *ocfs2_bread(struct inode *inode, int block,
int *err, int reada);
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 910a601b2e9..f92bf1dd379 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -784,8 +784,7 @@ int ocfs2_journal_load(struct ocfs2_journal *journal)
}
/* Launch the commit thread */
- osb->commit_task = kthread_run(ocfs2_commit_thread, osb, "ocfs2cmt-%d",
- osb->osb_id);
+ osb->commit_task = kthread_run(ocfs2_commit_thread, osb, "ocfs2cmt");
if (IS_ERR(osb->commit_task)) {
status = PTR_ERR(osb->commit_task);
osb->commit_task = NULL;
@@ -1118,7 +1117,7 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num)
goto out;
osb->recovery_thread_task = kthread_run(__ocfs2_recovery_thread, osb,
- "ocfs2rec-%d", osb->osb_id);
+ "ocfs2rec");
if (IS_ERR(osb->recovery_thread_task)) {
mlog_errno((int)PTR_ERR(osb->recovery_thread_task));
osb->recovery_thread_task = NULL;
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 843cf9ddefe..83934e33e5b 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -46,12 +46,12 @@ static struct page *ocfs2_nopage(struct vm_area_struct * area,
unsigned long address,
int *type)
{
- struct inode *inode = area->vm_file->f_dentry->d_inode;
struct page *page = NOPAGE_SIGBUS;
sigset_t blocked, oldset;
int ret;
- mlog_entry("(inode %lu, address %lu)\n", inode->i_ino, address);
+ mlog_entry("(area=%p, address=%lu, type=%p)\n", area, address,
+ type);
/* The best way to deal with signals in this path is
* to block them upfront, rather than allowing the
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index da1093039c0..cd4a6f253d1 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -184,7 +184,6 @@ struct ocfs2_journal;
struct ocfs2_journal_handle;
struct ocfs2_super
{
- u32 osb_id; /* id used by the proc interface */
struct task_struct *commit_task;
struct super_block *sb;
struct inode *root_inode;
@@ -222,13 +221,11 @@ struct ocfs2_super
unsigned long s_mount_opt;
u16 max_slots;
- u16 num_nodes;
s16 node_num;
s16 slot_num;
int s_sectsize_bits;
int s_clustersize;
int s_clustersize_bits;
- struct proc_dir_entry *proc_sub_dir; /* points to /proc/fs/ocfs2/<maj_min> */
atomic_t vol_state;
struct mutex recovery_lock;
@@ -294,7 +291,6 @@ struct ocfs2_super
};
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
-#define OCFS2_MAX_OSB_ID 65536
static inline int ocfs2_should_order_data(struct inode *inode)
{
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index 871627961d6..aa6f5aadedc 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -264,7 +264,7 @@ int ocfs2_find_slot(struct ocfs2_super *osb)
osb->slot_num = slot;
spin_unlock(&si->si_lock);
- mlog(ML_NOTICE, "taking node slot %d\n", osb->slot_num);
+ mlog(0, "taking node slot %d\n", osb->slot_num);
status = ocfs2_update_disk_slots(osb, si);
if (status < 0)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index cdf73393f09..382706a67ff 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -68,13 +68,6 @@
#include "buffer_head_io.h"
-/*
- * Globals
- */
-static spinlock_t ocfs2_globals_lock = SPIN_LOCK_UNLOCKED;
-
-static u32 osb_id; /* Keeps track of next available OSB Id */
-
static kmem_cache_t *ocfs2_inode_cachep = NULL;
kmem_cache_t *ocfs2_lock_cache = NULL;
@@ -642,10 +635,9 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
ocfs2_complete_mount_recovery(osb);
- printk("ocfs2: Mounting device (%u,%u) on (node %d, slot %d) with %s "
- "data mode.\n",
- MAJOR(sb->s_dev), MINOR(sb->s_dev), osb->node_num,
- osb->slot_num,
+ printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %d, slot %d) "
+ "with %s data mode.\n",
+ osb->dev_str, osb->node_num, osb->slot_num,
osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" :
"ordered");
@@ -800,10 +792,6 @@ static int __init ocfs2_init(void)
goto leave;
}
- spin_lock(&ocfs2_globals_lock);
- osb_id = 0;
- spin_unlock(&ocfs2_globals_lock);
-
ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL);
if (!ocfs2_debugfs_root) {
status = -EFAULT;
@@ -1020,7 +1008,7 @@ static int ocfs2_fill_local_node_info(struct ocfs2_super *osb)
goto bail;
}
- mlog(ML_NOTICE, "I am node %d\n", osb->node_num);
+ mlog(0, "I am node %d\n", osb->node_num);
status = 0;
bail:
@@ -1191,8 +1179,8 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
atomic_set(&osb->vol_state, VOLUME_DISMOUNTED);
- printk("ocfs2: Unmounting device (%u,%u) on (node %d)\n",
- MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev), osb->node_num);
+ printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %d)\n",
+ osb->dev_str, osb->node_num);
ocfs2_delete_osb(osb);
kfree(osb);
@@ -1212,8 +1200,6 @@ static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uu
if (osb->uuid_str == NULL)
return -ENOMEM;
- memcpy(osb->uuid, uuid, OCFS2_VOL_UUID_LEN);
-
for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) {
/* print with null */
ret = snprintf(ptr, 3, "%02X", uuid[i]);
@@ -1311,13 +1297,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
goto bail;
}
- osb->uuid = kmalloc(OCFS2_VOL_UUID_LEN, GFP_KERNEL);
- if (!osb->uuid) {
- mlog(ML_ERROR, "unable to alloc uuid\n");
- status = -ENOMEM;
- goto bail;
- }
-
di = (struct ocfs2_dinode *)bh->b_data;
osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots);
@@ -1327,7 +1306,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
status = -EINVAL;
goto bail;
}
- mlog(ML_NOTICE, "max_slots for this device: %u\n", osb->max_slots);
+ mlog(0, "max_slots for this device: %u\n", osb->max_slots);
init_waitqueue_head(&osb->osb_wipe_event);
osb->osb_orphan_wipes = kcalloc(osb->max_slots,
@@ -1418,7 +1397,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
goto bail;
}
- memcpy(&uuid_net_key, &osb->uuid[i], sizeof(osb->net_key));
+ memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key));
osb->net_key = le32_to_cpu(uuid_net_key);
strncpy(osb->vol_label, di->id2.i_super.s_label, 63);
@@ -1484,18 +1463,6 @@ static int ocfs2_initialize_super(struct super_block *sb,
goto bail;
}
- /* Link this osb onto the global linked list of all osb structures. */
- /* The Global Link List is mainted for the whole driver . */
- spin_lock(&ocfs2_globals_lock);
- osb->osb_id = osb_id;
- if (osb_id < OCFS2_MAX_OSB_ID)
- osb_id++;
- else {
- mlog(ML_ERROR, "Too many volumes mounted\n");
- status = -ENOMEM;
- }
- spin_unlock(&ocfs2_globals_lock);
-
bail:
mlog_exit(status);
return status;
diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c
index 0c8a1294ec9..c0f68aa6c17 100644
--- a/fs/ocfs2/symlink.c
+++ b/fs/ocfs2/symlink.c
@@ -154,7 +154,7 @@ static void *ocfs2_follow_link(struct dentry *dentry,
}
status = vfs_follow_link(nd, link);
- if (status)
+ if (status && status != -ENOENT)
mlog_errno(status);
bail:
if (page) {
diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile
index 42c7d3878ed..d713ce6b3e1 100644
--- a/fs/partitions/Makefile
+++ b/fs/partitions/Makefile
@@ -4,7 +4,6 @@
obj-y := check.o
-obj-$(CONFIG_DEVFS_FS) += devfs.o
obj-$(CONFIG_ACORN_PARTITION) += acorn.o
obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
obj-$(CONFIG_ATARI_PARTITION) += atari.o
diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
index c05085710fc..1bc9f372c7d 100644
--- a/fs/partitions/acorn.c
+++ b/fs/partitions/acorn.c
@@ -12,7 +12,6 @@
* every single manufacturer of SCSI and IDE cards created their own
* method.
*/
-#include <linux/config.h>
#include <linux/buffer_head.h>
#include <linux/adfs_fs.h>
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 2ef313a96b6..839634026eb 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -18,10 +18,8 @@
#include <linux/fs.h>
#include <linux/kmod.h>
#include <linux/ctype.h>
-#include <linux/devfs_fs_kernel.h>
#include "check.h"
-#include "devfs.h"
#include "acorn.h"
#include "amiga.h"
@@ -161,18 +159,11 @@ check_partition(struct gendisk *hd, struct block_device *bdev)
if (!state)
return NULL;
-#ifdef CONFIG_DEVFS_FS
- if (hd->devfs_name[0] != '\0') {
- printk(KERN_INFO " /dev/%s:", hd->devfs_name);
+ disk_name(hd, 0, state->name);
+ printk(KERN_INFO " %s:", state->name);
+ if (isdigit(state->name[strlen(state->name)-1]))
sprintf(state->name, "p");
- }
-#endif
- else {
- disk_name(hd, 0, state->name);
- printk(KERN_INFO " %s:", state->name);
- if (isdigit(state->name[strlen(state->name)-1]))
- sprintf(state->name, "p");
- }
+
state->limit = hd->minors;
i = res = 0;
while (!res && check_part[i]) {
@@ -328,7 +319,6 @@ void delete_partition(struct gendisk *disk, int part)
p->nr_sects = 0;
p->ios[0] = p->ios[1] = 0;
p->sectors[0] = p->sectors[1] = 0;
- devfs_remove("%s/part%d", disk->devfs_name, part);
sysfs_remove_link(&p->kobj, "subsystem");
if (p->holder_dir)
kobject_unregister(p->holder_dir);
@@ -350,10 +340,6 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len)
p->nr_sects = len;
p->partno = part;
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor + part),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s/part%d", disk->devfs_name, part);
-
if (isdigit(disk->kobj.name[strlen(disk->kobj.name)-1]))
snprintf(p->kobj.name,KOBJ_NAME_LEN,"%sp%d",disk->kobj.name,part);
else
@@ -423,14 +409,8 @@ void register_disk(struct gendisk *disk)
disk_sysfs_add_subdirs(disk);
/* No minors to use for partitions */
- if (disk->minors == 1) {
- if (disk->devfs_name[0] != '\0')
- devfs_add_disk(disk);
+ if (disk->minors == 1)
goto exit;
- }
-
- /* always add handle for the whole disk */
- devfs_add_partitioned(disk);
/* No such device (e.g., media were just removed) */
if (!get_capacity(disk))
@@ -538,8 +518,6 @@ void del_gendisk(struct gendisk *disk)
disk_stat_set_all(disk, 0);
disk->stamp = 0;
- devfs_remove_disk(disk);
-
kobject_uevent(&disk->kobj, KOBJ_REMOVE);
if (disk->holder_dir)
kobject_unregister(disk->holder_dir);
diff --git a/fs/partitions/devfs.c b/fs/partitions/devfs.c
deleted file mode 100644
index 3f0a780c9ce..00000000000
--- a/fs/partitions/devfs.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * This tries to keep block devices away from devfs as much as possible.
- */
-#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/genhd.h>
-#include <linux/bitops.h>
-#include <linux/mutex.h>
-
-
-struct unique_numspace {
- u32 num_free; /* Num free in bits */
- u32 length; /* Array length in bytes */
- unsigned long *bits;
- struct semaphore mutex;
-};
-
-static DEFINE_MUTEX(numspace_mutex);
-
-static int expand_numspace(struct unique_numspace *s)
-{
- u32 length;
- void *bits;
-
- if (s->length < 16)
- length = 16;
- else
- length = s->length << 1;
-
- bits = vmalloc(length);
- if (!bits)
- return -ENOMEM;
- if (s->bits) {
- memcpy(bits, s->bits, s->length);
- vfree(s->bits);
- }
-
- s->num_free = (length - s->length) << 3;
- s->bits = bits;
- memset(bits + s->length, 0, length - s->length);
- s->length = length;
-
- return 0;
-}
-
-static int alloc_unique_number(struct unique_numspace *s)
-{
- int rval = 0;
-
- mutex_lock(&numspace_mutex);
- if (s->num_free < 1)
- rval = expand_numspace(s);
- if (!rval) {
- rval = find_first_zero_bit(s->bits, s->length << 3);
- --s->num_free;
- __set_bit(rval, s->bits);
- }
- mutex_unlock(&numspace_mutex);
-
- return rval;
-}
-
-static void dealloc_unique_number(struct unique_numspace *s, int number)
-{
- int old_val;
-
- if (number >= 0) {
- mutex_lock(&numspace_mutex);
- old_val = __test_and_clear_bit(number, s->bits);
- if (old_val)
- ++s->num_free;
- mutex_unlock(&numspace_mutex);
- }
-}
-
-static struct unique_numspace disc_numspace;
-static struct unique_numspace cdrom_numspace;
-
-void devfs_add_partitioned(struct gendisk *disk)
-{
- char dirname[64], symlink[16];
-
- devfs_mk_dir(disk->devfs_name);
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s/disc", disk->devfs_name);
-
- disk->number = alloc_unique_number(&disc_numspace);
-
- sprintf(symlink, "discs/disc%d", disk->number);
- sprintf(dirname, "../%s", disk->devfs_name);
- devfs_mk_symlink(symlink, dirname);
-
-}
-
-void devfs_add_disk(struct gendisk *disk)
-{
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
- (disk->flags & GENHD_FL_CD) ?
- S_IFBLK|S_IRUGO|S_IWUGO :
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s", disk->devfs_name);
-
- if (disk->flags & GENHD_FL_CD) {
- char dirname[64], symlink[16];
-
- disk->number = alloc_unique_number(&cdrom_numspace);
-
- sprintf(symlink, "cdroms/cdrom%d", disk->number);
- sprintf(dirname, "../%s", disk->devfs_name);
- devfs_mk_symlink(symlink, dirname);
- }
-}
-
-void devfs_remove_disk(struct gendisk *disk)
-{
- if (disk->minors != 1) {
- devfs_remove("discs/disc%d", disk->number);
- dealloc_unique_number(&disc_numspace, disk->number);
- devfs_remove("%s/disc", disk->devfs_name);
- }
- if (disk->flags & GENHD_FL_CD) {
- devfs_remove("cdroms/cdrom%d", disk->number);
- dealloc_unique_number(&cdrom_numspace, disk->number);
- }
- devfs_remove(disk->devfs_name);
-}
-
-
diff --git a/fs/partitions/devfs.h b/fs/partitions/devfs.h
deleted file mode 100644
index 176118b4e49..00000000000
--- a/fs/partitions/devfs.h
+++ /dev/null
@@ -1,10 +0,0 @@
-
-#ifdef CONFIG_DEVFS_FS
-void devfs_add_disk(struct gendisk *dev);
-void devfs_add_partitioned(struct gendisk *dev);
-void devfs_remove_disk(struct gendisk *dev);
-#else
-# define devfs_add_disk(disk) do { } while (0)
-# define devfs_add_partitioned(disk) do { } while (0)
-# define devfs_remove_disk(disk) do { } while (0)
-#endif
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index 0f5b017aeba..63730282ad8 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -91,7 +91,6 @@
* - Code works, detects all the partitions.
*
************************************************************/
-#include <linux/config.h>
#include <linux/crc32.h>
#include "check.h"
#include "efi.h"
diff --git a/fs/partitions/efi.h b/fs/partitions/efi.h
index c44fb056144..2cc89d0475b 100644
--- a/fs/partitions/efi.h
+++ b/fs/partitions/efi.h
@@ -26,7 +26,6 @@
#define FS_PART_EFI_H_INCLUDED
#include <linux/types.h>
-#include <linux/config.h>
#include <linux/fs.h>
#include <linux/genhd.h>
#include <linux/kernel.h>
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 830c55d86ab..d352a7381fe 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -6,7 +6,6 @@
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
*/
-#include <linux/config.h>
#include <linux/buffer_head.h>
#include <linux/hdreg.h>
#include <linux/slab.h>
diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c
index 813292f2121..c0871002d00 100644
--- a/fs/partitions/mac.c
+++ b/fs/partitions/mac.c
@@ -6,7 +6,6 @@
* Re-organised Feb 1998 Russell King
*/
-#include <linux/config.h>
#include <linux/ctype.h>
#include "check.h"
#include "mac.h"
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
index 9935d254186..8f12587c312 100644
--- a/fs/partitions/msdos.c
+++ b/fs/partitions/msdos.c
@@ -19,7 +19,6 @@
* Re-organised Feb 1998 Russell King
*/
-#include <linux/config.h>
#include "check.h"
#include "msdos.h"
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 7a76ad57023..7495d3e2077 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -52,7 +52,6 @@
* : base.c too.
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/time.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 6ba7785319d..243a94af042 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -49,7 +49,6 @@
#include <asm/uaccess.h>
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/proc_fs.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 17f6e8fa139..036d14d8362 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -9,7 +9,6 @@
* Safe accesses to vmalloc/direct-mapped discontiguous areas, Kanoj Sarcar <kanoj@sgi.com>
*/
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/user.h>
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 5c10ea15742..9f2cfc30f9c 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -26,7 +26,6 @@
#include <linux/mman.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/pagemap.h>
@@ -120,7 +119,6 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
{
struct sysinfo i;
int len;
- struct page_state ps;
unsigned long inactive;
unsigned long active;
unsigned long free;
@@ -129,7 +127,6 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
struct vmalloc_info vmi;
long cached;
- get_page_state(&ps);
get_zone_counts(&active, &inactive, &free);
/*
@@ -142,7 +139,8 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
allowed = ((totalram_pages - hugetlb_total_pages())
* sysctl_overcommit_ratio / 100) + total_swap_pages;
- cached = get_page_cache_size() - total_swapcache_pages - i.bufferram;
+ cached = global_page_state(NR_FILE_PAGES) -
+ total_swapcache_pages - i.bufferram;
if (cached < 0)
cached = 0;
@@ -167,11 +165,14 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
"SwapFree: %8lu kB\n"
"Dirty: %8lu kB\n"
"Writeback: %8lu kB\n"
+ "AnonPages: %8lu kB\n"
"Mapped: %8lu kB\n"
"Slab: %8lu kB\n"
+ "PageTables: %8lu kB\n"
+ "NFS Unstable: %8lu kB\n"
+ "Bounce: %8lu kB\n"
"CommitLimit: %8lu kB\n"
"Committed_AS: %8lu kB\n"
- "PageTables: %8lu kB\n"
"VmallocTotal: %8lu kB\n"
"VmallocUsed: %8lu kB\n"
"VmallocChunk: %8lu kB\n",
@@ -188,13 +189,16 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
K(i.freeram-i.freehigh),
K(i.totalswap),
K(i.freeswap),
- K(ps.nr_dirty),
- K(ps.nr_writeback),
- K(ps.nr_mapped),
- K(ps.nr_slab),
+ K(global_page_state(NR_FILE_DIRTY)),
+ K(global_page_state(NR_WRITEBACK)),
+ K(global_page_state(NR_ANON_PAGES)),
+ K(global_page_state(NR_FILE_MAPPED)),
+ K(global_page_state(NR_SLAB)),
+ K(global_page_state(NR_PAGETABLE)),
+ K(global_page_state(NR_UNSTABLE_NFS)),
+ K(global_page_state(NR_BOUNCE)),
K(allowed),
K(committed),
- K(ps.nr_page_table_pages),
(unsigned long)VMALLOC_TOTAL >> 10,
vmi.used >> 10,
vmi.largest_chunk >> 10
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 9995356ce73..8901c65caca 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -12,7 +12,6 @@
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/bitops.h>
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 20d4b2237fc..d96050728c4 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -7,7 +7,6 @@
*
*/
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/user.h>
diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
index 46efbf52cbe..8425cf6e962 100644
--- a/fs/qnx4/bitmap.c
+++ b/fs/qnx4/bitmap.c
@@ -13,7 +13,6 @@
* 28-06-1998 by Frank Denis : qnx4_free_inode (to be fixed) .
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/qnx4_fs.h>
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index 9031948fefd..0d7103fa0df 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -11,7 +11,6 @@
* 20-06-1998 by Frank Denis : Linux 2.1.99+ & dcache support.
*/
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/qnx4/fsync.c b/fs/qnx4/fsync.c
index df5bc75d541..aa3b19544be 100644
--- a/fs/qnx4/fsync.c
+++ b/fs/qnx4/fsync.c
@@ -10,7 +10,6 @@
* 24-03-1998 by Richard Frowijn : first release.
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/stat.h>
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 2f24c46f72a..5a903491e69 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -12,7 +12,6 @@
* 30-06-1998 by Frank Denis : first step to write inodes.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
@@ -450,7 +449,7 @@ static sector_t qnx4_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,qnx4_get_block);
}
-static struct address_space_operations qnx4_aops = {
+static const struct address_space_operations qnx4_aops = {
.readpage = qnx4_readpage,
.writepage = qnx4_writepage,
.sync_page = block_sync_page,
diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
index 4af4951d7f5..c3d83f67154 100644
--- a/fs/qnx4/namei.c
+++ b/fs/qnx4/namei.c
@@ -12,7 +12,6 @@
* 04-07-1998 by Frank Denis : first step for rmdir/unlink.
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/qnx4_fs.h>
diff --git a/fs/qnx4/truncate.c b/fs/qnx4/truncate.c
index 86563ec01b3..6437c1c3d1d 100644
--- a/fs/qnx4/truncate.c
+++ b/fs/qnx4/truncate.c
@@ -10,7 +10,6 @@
* 30-06-1998 by Frank DENIS : ugly filler.
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c
index 00a933eb820..86f14cacf64 100644
--- a/fs/ramfs/file-mmu.c
+++ b/fs/ramfs/file-mmu.c
@@ -26,7 +26,7 @@
#include <linux/fs.h>
-struct address_space_operations ramfs_aops = {
+const struct address_space_operations ramfs_aops = {
.readpage = simple_readpage,
.prepare_write = simple_prepare_write,
.commit_write = simple_commit_write
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index f443a84b98a..99fffc9e1bf 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -27,7 +27,7 @@
static int ramfs_nommu_setattr(struct dentry *, struct iattr *);
-struct address_space_operations ramfs_aops = {
+const struct address_space_operations ramfs_aops = {
.readpage = simple_readpage,
.prepare_write = simple_prepare_write,
.commit_write = simple_commit_write
diff --git a/fs/ramfs/internal.h b/fs/ramfs/internal.h
index 313237631b4..c2bb58e7465 100644
--- a/fs/ramfs/internal.h
+++ b/fs/ramfs/internal.h
@@ -10,6 +10,6 @@
*/
-extern struct address_space_operations ramfs_aops;
+extern const struct address_space_operations ramfs_aops;
extern const struct file_operations ramfs_file_operations;
extern struct inode_operations ramfs_file_inode_operations;
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index 909f71e9a30..4a7dbdee1b6 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -3,7 +3,6 @@
*/
/* Reiserfs block (de)allocator, bitmap-based. */
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/reiserfs_fs.h>
#include <linux/errno.h>
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 973c819f803..9aabcc0ccd2 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index b2264ba3cc5..fba304e64de 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -15,7 +15,6 @@
**
**/
-#include <linux/config.h>
#include <asm/uaccess.h>
#include <linux/time.h>
#include <linux/reiserfs_fs.h>
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 5600d3d60cf..6d0e554daa9 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -34,7 +34,6 @@
**
**/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/string.h>
#include <linux/reiserfs_fs.h>
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
index 6c5a726fd34..de391a82b99 100644
--- a/fs/reiserfs/ibalance.c
+++ b/fs/reiserfs/ibalance.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <asm/uaccess.h>
#include <linux/string.h>
#include <linux/time.h>
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 9857e50f85e..12dfdcfbee3 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/reiserfs_fs.h>
@@ -2933,6 +2932,11 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
}
if (error)
goto out;
+ /*
+ * file size is changed, ctime and mtime are
+ * to be updated
+ */
+ attr->ia_valid |= (ATTR_MTIME | ATTR_CTIME);
}
}
@@ -2996,7 +3000,7 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
return error;
}
-struct address_space_operations reiserfs_address_space_operations = {
+const struct address_space_operations reiserfs_address_space_operations = {
.writepage = reiserfs_writepage,
.readpage = reiserfs_readpage,
.readpages = reiserfs_readpages,
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 49d1a53dbef..9b3672d6936 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -34,7 +34,6 @@
** from within kupdate, it will ignore the immediate flag
*/
-#include <linux/config.h>
#include <asm/uaccess.h>
#include <asm/system.h>
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 2533c1f64ab..281f8061ac5 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <asm/uaccess.h>
#include <linux/string.h>
#include <linux/time.h>
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 284f7852de8..c61710e49c6 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -11,7 +11,6 @@
* NO WARRANTY
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/bitops.h>
#include <linux/reiserfs_fs.h>
diff --git a/fs/reiserfs/objectid.c b/fs/reiserfs/objectid.c
index f62590aa9c9..65feba4deb6 100644
--- a/fs/reiserfs/objectid.c
+++ b/fs/reiserfs/objectid.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/random.h>
#include <linux/time.h>
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 27bd3a1df2a..bc808a91eea 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -2,7 +2,6 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/reiserfs_fs.h>
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 731688e1cfe..5d8a8cfebc7 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -10,7 +10,6 @@
/* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/time.h>
#include <linux/seq_file.h>
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index d2b25e1ba6e..8b9b1312713 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -49,7 +49,6 @@
* reiserfs_insert_item
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/string.h>
#include <linux/pagemap.h>
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 00f1321e920..5567328f104 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -11,7 +11,6 @@
* NO WARRANTY
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
@@ -2204,7 +2203,7 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
size_t towrite = len;
struct buffer_head tmp_bh, *bh;
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 196e971c03c..36f108fc1cf 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -2,7 +2,6 @@
* Copyright 1999 Hans Reiser, see reiserfs/README for licensing and copyright details
*/
-#include <linux/config.h>
#include <linux/time.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
index 283fbc6b8ee..22eed61ebf6 100644
--- a/fs/romfs/inode.c
+++ b/fs/romfs/inode.c
@@ -459,7 +459,7 @@ err_out:
/* Mapping from our types to the kernel */
-static struct address_space_operations romfs_aops = {
+static const struct address_space_operations romfs_aops = {
.readpage = romfs_readpage
};
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index ed9a24d19d7..dae67048bab 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -306,7 +306,7 @@ static int smb_commit_write(struct file *file, struct page *page,
return status;
}
-struct address_space_operations smb_file_aops = {
+const struct address_space_operations smb_file_aops = {
.readpage = smb_readpage,
.writepage = smb_writepage,
.prepare_write = smb_prepare_write,
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 506ff87c1d4..a1ed657c3c8 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -7,7 +7,6 @@
* Please add a note about your changes to smbfs in the ChangeLog file.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/time.h>
#include <linux/kernel.h>
diff --git a/fs/smbfs/proto.h b/fs/smbfs/proto.h
index 972ed7dad38..34fb462b237 100644
--- a/fs/smbfs/proto.h
+++ b/fs/smbfs/proto.h
@@ -63,7 +63,7 @@ extern int smb_revalidate_inode(struct dentry *dentry);
extern int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
/* file.c */
-extern struct address_space_operations smb_file_aops;
+extern const struct address_space_operations smb_file_aops;
extern const struct file_operations smb_file_operations;
extern struct inode_operations smb_file_inode_operations;
/* ioctl.c */
diff --git a/fs/smbfs/smbiod.c b/fs/smbfs/smbiod.c
index 24577e2c489..e6754044128 100644
--- a/fs/smbfs/smbiod.c
+++ b/fs/smbfs/smbiod.c
@@ -5,7 +5,6 @@
* Copyright (C) 2001, Urban Widmark
*/
-#include <linux/config.h>
#include <linux/sched.h>
#include <linux/kernel.h>
diff --git a/fs/stat.c b/fs/stat.c
index 0f282face32..3a44dcf97da 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -4,7 +4,6 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/errno.h>
diff --git a/fs/super.c b/fs/super.c
index 8a669f6f3f5..6d4e8174b6d 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -20,7 +20,6 @@
* Heavily rewritten for 'one fs - one tree' dcache architecture. AV, Mar 2000
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
@@ -54,7 +53,7 @@ DEFINE_SPINLOCK(sb_lock);
* Allocates and initializes a new &struct super_block. alloc_super()
* returns a pointer new superblock or %NULL if allocation had failed.
*/
-static struct super_block *alloc_super(void)
+static struct super_block *alloc_super(struct file_system_type *type)
{
struct super_block *s = kzalloc(sizeof(struct super_block), GFP_USER);
static struct super_operations default_op;
@@ -73,6 +72,13 @@ static struct super_block *alloc_super(void)
INIT_LIST_HEAD(&s->s_inodes);
init_rwsem(&s->s_umount);
mutex_init(&s->s_lock);
+ lockdep_set_class(&s->s_umount, &type->s_umount_key);
+ /*
+ * The locking rules for s_lock are up to the
+ * filesystem. For example ext3fs has different
+ * lock ordering than usbfs:
+ */
+ lockdep_set_class(&s->s_lock, &type->s_lock_key);
down_write(&s->s_umount);
s->s_count = S_BIAS;
atomic_set(&s->s_active, 1);
@@ -296,7 +302,7 @@ retry:
}
if (!s) {
spin_unlock(&sb_lock);
- s = alloc_super();
+ s = alloc_super(type);
if (!s)
return ERR_PTR(-ENOMEM);
goto retry;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index f0b347bd12c..5e0e31cc46f 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -16,7 +16,7 @@
extern struct super_block * sysfs_sb;
-static struct address_space_operations sysfs_aops = {
+static const struct address_space_operations sysfs_aops = {
.readpage = simple_readpage,
.prepare_write = simple_prepare_write,
.commit_write = simple_commit_write
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 86f5f8d43d0..f2bcccd1d6f 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -465,7 +465,7 @@ static sector_t sysv_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,get_block);
}
-struct address_space_operations sysv_aops = {
+const struct address_space_operations sysv_aops = {
.readpage = sysv_readpage,
.writepage = sysv_writepage,
.sync_page = block_sync_page,
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 393a480e4de..9dcc8212093 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -161,7 +161,7 @@ extern struct inode_operations sysv_dir_inode_operations;
extern struct inode_operations sysv_fast_symlink_inode_operations;
extern const struct file_operations sysv_file_operations;
extern const struct file_operations sysv_dir_operations;
-extern struct address_space_operations sysv_aops;
+extern const struct address_space_operations sysv_aops;
extern struct super_operations sysv_sops;
extern struct dentry_operations sysv_dentry_operations;
diff --git a/fs/udf/file.c b/fs/udf/file.c
index e34b00e303f..a59e5f33daf 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -95,7 +95,7 @@ static int udf_adinicb_commit_write(struct file *file, struct page *page, unsign
return 0;
}
-struct address_space_operations udf_adinicb_aops = {
+const struct address_space_operations udf_adinicb_aops = {
.readpage = udf_adinicb_readpage,
.writepage = udf_adinicb_writepage,
.sync_page = block_sync_page,
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 2983afd5e7f..605f5111b6d 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -132,7 +132,7 @@ static sector_t udf_bmap(struct address_space *mapping, sector_t block)
return generic_block_bmap(mapping,block,udf_get_block);
}
-struct address_space_operations udf_aops = {
+const struct address_space_operations udf_aops = {
.readpage = udf_readpage,
.writepage = udf_writepage,
.sync_page = block_sync_page,
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 44fe2cb0bbb..4df822c881b 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -40,7 +40,6 @@
#include "udfdecl.h"
-#include <linux/config.h>
#include <linux/blkdev.h>
#include <linux/slab.h>
#include <linux/kernel.h>
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index 674bb40edc8..ba068a78656 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -113,6 +113,6 @@ out:
/*
* symlinks can't do much...
*/
-struct address_space_operations udf_symlink_aops = {
+const struct address_space_operations udf_symlink_aops = {
.readpage = udf_symlink_filler,
};
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 023e19ba5a2..1033b7cf293 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -6,7 +6,6 @@
#include "osta_udf.h"
#include <linux/fs.h>
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/udf_fs_i.h>
#include <linux/udf_fs_sb.h>
@@ -47,9 +46,9 @@ extern struct inode_operations udf_dir_inode_operations;
extern const struct file_operations udf_dir_operations;
extern struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
-extern struct address_space_operations udf_aops;
-extern struct address_space_operations udf_adinicb_aops;
-extern struct address_space_operations udf_symlink_aops;
+extern const struct address_space_operations udf_aops;
+extern const struct address_space_operations udf_adinicb_aops;
+extern const struct address_space_operations udf_symlink_aops;
struct udf_fileident_bh
{
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 95b878e5c7a..b01804baa12 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -217,48 +217,6 @@ failed:
return;
}
-static struct page *ufs_get_locked_page(struct address_space *mapping,
- unsigned long index)
-{
- struct page *page;
-
-try_again:
- page = find_lock_page(mapping, index);
- if (!page) {
- page = read_cache_page(mapping, index,
- (filler_t*)mapping->a_ops->readpage,
- NULL);
- if (IS_ERR(page)) {
- printk(KERN_ERR "ufs_change_blocknr: "
- "read_cache_page error: ino %lu, index: %lu\n",
- mapping->host->i_ino, index);
- goto out;
- }
-
- lock_page(page);
-
- if (!PageUptodate(page) || PageError(page)) {
- unlock_page(page);
- page_cache_release(page);
-
- printk(KERN_ERR "ufs_change_blocknr: "
- "can not read page: ino %lu, index: %lu\n",
- mapping->host->i_ino, index);
-
- page = ERR_PTR(-EIO);
- goto out;
- }
- }
-
- if (unlikely(!page->mapping || !page_has_buffers(page))) {
- unlock_page(page);
- page_cache_release(page);
- goto try_again;/*we really need these buffers*/
- }
-out:
- return page;
-}
-
/*
* Modify inode page cache in such way:
* have - blocks with b_blocknr equal to oldb...oldb+count-1
@@ -311,10 +269,8 @@ static void ufs_change_blocknr(struct inode *inode, unsigned int baseblk,
set_page_dirty(page);
- if (likely(cur_index != index)) {
- unlock_page(page);
- page_cache_release(page);
- }
+ if (likely(cur_index != index))
+ ufs_put_locked_page(page);
}
UFSD("EXIT\n");
}
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 0e5001512a9..a9c6e5f04fa 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -60,7 +60,3 @@ const struct file_operations ufs_file_operations = {
.fsync = ufs_sync_file,
.sendfile = generic_file_sendfile,
};
-
-struct inode_operations ufs_file_inode_operations = {
- .truncate = ufs_truncate,
-};
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 259bd196099..e7c8615beb6 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -98,7 +98,9 @@ static u64 ufs_frag_map(struct inode *inode, sector_t frag)
u64 temp = 0L;
UFSD(": frag = %llu depth = %d\n", (unsigned long long)frag, depth);
- UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",uspi->s_fpbshift,uspi->s_apbmask,mask);
+ UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",
+ uspi->s_fpbshift, uspi->s_apbmask,
+ (unsigned long long)mask);
if (depth == 0)
return 0;
@@ -429,7 +431,7 @@ int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head
if (!create) {
phys64 = ufs_frag_map(inode, fragment);
- UFSD("phys64 = %llu \n",phys64);
+ UFSD("phys64 = %llu\n", (unsigned long long)phys64);
if (phys64)
map_bh(bh_result, sb, phys64);
return 0;
@@ -574,7 +576,7 @@ static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
{
return generic_block_bmap(mapping,block,ufs_getfrag_block);
}
-struct address_space_operations ufs_aops = {
+const struct address_space_operations ufs_aops = {
.readpage = ufs_readpage,
.writepage = ufs_writepage,
.sync_page = block_sync_page,
@@ -841,14 +843,17 @@ int ufs_sync_inode (struct inode *inode)
void ufs_delete_inode (struct inode * inode)
{
+ loff_t old_i_size;
+
truncate_inode_pages(&inode->i_data, 0);
/*UFS_I(inode)->i_dtime = CURRENT_TIME;*/
lock_kernel();
mark_inode_dirty(inode);
ufs_update_inode(inode, IS_SYNC(inode));
+ old_i_size = inode->i_size;
inode->i_size = 0;
- if (inode->i_blocks)
- ufs_truncate (inode);
+ if (inode->i_blocks && ufs_truncate(inode, old_i_size))
+ ufs_warning(inode->i_sb, __FUNCTION__, "ufs_truncate failed\n");
ufs_free_inode (inode);
unlock_kernel();
}
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 74ef5e9bedf..992ee0b87cc 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -64,7 +64,6 @@
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/bitops.h>
@@ -1327,7 +1326,7 @@ static ssize_t ufs_quota_write(struct super_block *sb, int type,
size_t towrite = len;
struct buffer_head *bh;
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index 3c3b301f870..c9b55872079 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -369,24 +369,97 @@ static int ufs_trunc_tindirect (struct inode * inode)
UFSD("EXIT\n");
return retry;
}
-
-void ufs_truncate (struct inode * inode)
+
+static int ufs_alloc_lastblock(struct inode *inode)
{
+ int err = 0;
+ struct address_space *mapping = inode->i_mapping;
+ struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
struct ufs_inode_info *ufsi = UFS_I(inode);
- struct super_block * sb;
- struct ufs_sb_private_info * uspi;
- int retry;
+ unsigned lastfrag, i, end;
+ struct page *lastpage;
+ struct buffer_head *bh;
+
+ lastfrag = (i_size_read(inode) + uspi->s_fsize - 1) >> uspi->s_fshift;
+
+ if (!lastfrag) {
+ ufsi->i_lastfrag = 0;
+ goto out;
+ }
+ lastfrag--;
+
+ lastpage = ufs_get_locked_page(mapping, lastfrag >>
+ (PAGE_CACHE_SHIFT - inode->i_blkbits));
+ if (IS_ERR(lastpage)) {
+ err = -EIO;
+ goto out;
+ }
+
+ end = lastfrag & ((1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1);
+ bh = page_buffers(lastpage);
+ for (i = 0; i < end; ++i)
+ bh = bh->b_this_page;
+
+ if (!buffer_mapped(bh)) {
+ err = ufs_getfrag_block(inode, lastfrag, bh, 1);
+
+ if (unlikely(err))
+ goto out_unlock;
+
+ if (buffer_new(bh)) {
+ clear_buffer_new(bh);
+ unmap_underlying_metadata(bh->b_bdev,
+ bh->b_blocknr);
+ /*
+ * we do not zeroize fragment, because of
+ * if it maped to hole, it already contains zeroes
+ */
+ set_buffer_uptodate(bh);
+ mark_buffer_dirty(bh);
+ set_page_dirty(lastpage);
+ }
+ }
+out_unlock:
+ ufs_put_locked_page(lastpage);
+out:
+ return err;
+}
+
+int ufs_truncate(struct inode *inode, loff_t old_i_size)
+{
+ struct ufs_inode_info *ufsi = UFS_I(inode);
+ struct super_block *sb = inode->i_sb;
+ struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+ int retry, err = 0;
UFSD("ENTER\n");
- sb = inode->i_sb;
- uspi = UFS_SB(sb)->s_uspi;
- if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
- return;
+ if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ S_ISLNK(inode->i_mode)))
+ return -EINVAL;
if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
- return;
+ return -EPERM;
+
+ if (inode->i_size > old_i_size) {
+ /*
+ * if we expand file we should care about
+ * allocation of block for last byte first of all
+ */
+ err = ufs_alloc_lastblock(inode);
+
+ if (err) {
+ i_size_write(inode, old_i_size);
+ goto out;
+ }
+ /*
+ * go away, because of we expand file, and we do not
+ * need free blocks, and zeroizes page
+ */
+ lock_kernel();
+ goto almost_end;
+ }
- block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);
+ block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);
lock_kernel();
while (1) {
@@ -404,9 +477,58 @@ void ufs_truncate (struct inode * inode)
yield();
}
+ if (inode->i_size < old_i_size) {
+ /*
+ * now we should have enough space
+ * to allocate block for last byte
+ */
+ err = ufs_alloc_lastblock(inode);
+ if (err)
+ /*
+ * looks like all the same - we have no space,
+ * but we truncate file already
+ */
+ inode->i_size = (ufsi->i_lastfrag - 1) * uspi->s_fsize;
+ }
+almost_end:
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
- ufsi->i_lastfrag = DIRECT_FRAGMENT;
unlock_kernel();
mark_inode_dirty(inode);
- UFSD("EXIT\n");
+out:
+ UFSD("EXIT: err %d\n", err);
+ return err;
}
+
+
+/*
+ * We don't define our `inode->i_op->truncate', and call it here,
+ * because of:
+ * - there is no way to know old size
+ * - there is no way inform user about error, if it happens in `truncate'
+ */
+static int ufs_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ struct inode *inode = dentry->d_inode;
+ unsigned int ia_valid = attr->ia_valid;
+ int error;
+
+ error = inode_change_ok(inode, attr);
+ if (error)
+ return error;
+
+ if (ia_valid & ATTR_SIZE &&
+ attr->ia_size != i_size_read(inode)) {
+ loff_t old_i_size = inode->i_size;
+ error = vmtruncate(inode, attr->ia_size);
+ if (error)
+ return error;
+ error = ufs_truncate(inode, old_i_size);
+ if (error)
+ return error;
+ }
+ return inode_setattr(inode, attr);
+}
+
+struct inode_operations ufs_file_inode_operations = {
+ .setattr = ufs_setattr,
+};
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index a2f13f45708..337cf2c46d1 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -233,3 +233,57 @@ ufs_set_inode_dev(struct super_block *sb, struct ufs_inode_info *ufsi, dev_t dev
else
ufsi->i_u1.i_data[0] = fs32;
}
+
+/**
+ * ufs_get_locked_page() - locate, pin and lock a pagecache page, if not exist
+ * read it from disk.
+ * @mapping: the address_space to search
+ * @index: the page index
+ *
+ * Locates the desired pagecache page, if not exist we'll read it,
+ * locks it, increments its reference
+ * count and returns its address.
+ *
+ */
+
+struct page *ufs_get_locked_page(struct address_space *mapping,
+ pgoff_t index)
+{
+ struct page *page;
+
+try_again:
+ page = find_lock_page(mapping, index);
+ if (!page) {
+ page = read_cache_page(mapping, index,
+ (filler_t*)mapping->a_ops->readpage,
+ NULL);
+ if (IS_ERR(page)) {
+ printk(KERN_ERR "ufs_change_blocknr: "
+ "read_cache_page error: ino %lu, index: %lu\n",
+ mapping->host->i_ino, index);
+ goto out;
+ }
+
+ lock_page(page);
+
+ if (!PageUptodate(page) || PageError(page)) {
+ unlock_page(page);
+ page_cache_release(page);
+
+ printk(KERN_ERR "ufs_change_blocknr: "
+ "can not read page: ino %lu, index: %lu\n",
+ mapping->host->i_ino, index);
+
+ page = ERR_PTR(-EIO);
+ goto out;
+ }
+ }
+
+ if (unlikely(!page->mapping || !page_has_buffers(page))) {
+ unlock_page(page);
+ page_cache_release(page);
+ goto try_again;/*we really need these buffers*/
+ }
+out:
+ return page;
+}
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 406981fff5e..28fce6c239b 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -251,6 +251,14 @@ extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struc
#define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
+/* This functions works with cache pages*/
+extern struct page *ufs_get_locked_page(struct address_space *mapping,
+ pgoff_t index);
+static inline void ufs_put_locked_page(struct page *page)
+{
+ unlock_page(page);
+ page_cache_release(page);
+}
/*
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 3e807b828e2..c40f81ba9b1 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1454,7 +1454,7 @@ xfs_vm_invalidatepage(
block_invalidatepage(page, offset);
}
-struct address_space_operations xfs_address_space_operations = {
+const struct address_space_operations xfs_address_space_operations = {
.readpage = xfs_vm_readpage,
.readpages = xfs_vm_readpages,
.writepage = xfs_vm_writepage,
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 706d8c781b8..2244e516b66 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -40,7 +40,7 @@ typedef struct xfs_ioend {
struct work_struct io_work; /* xfsdatad work queue */
} xfs_ioend_t;
-extern struct address_space_operations xfs_address_space_operations;
+extern const struct address_space_operations xfs_address_space_operations;
extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
#endif /* __XFS_AOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 26fed0756f0..2af528dcfb0 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1520,7 +1520,7 @@ xfs_mapping_buftarg(
struct backing_dev_info *bdi;
struct inode *inode;
struct address_space *mapping;
- static struct address_space_operations mapping_aops = {
+ static const struct address_space_operations mapping_aops = {
.sync_page = block_sync_page,
.migratepage = fail_migrate_page,
};
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 4dd6592d5a4..ceda3a2859d 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -18,7 +18,6 @@
#ifndef __XFS_BUF_H__
#define __XFS_BUF_H__
-#include <linux/config.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/spinlock.h>
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 601f01c92f7..270db0f3861 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -15,7 +15,6 @@
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <linux/config.h>
#include <linux/compat.h>
#include <linux/init.h>
#include <linux/ioctl.h>
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 028eb17ec2e..8c021dc57d1 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -19,7 +19,6 @@
#define __XFS_LINUX__
#include <linux/types.h>
-#include <linux/config.h>
/*
* Some types are conditional depending on the target system.