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authorIngo Molnar <mingo@elte.hu>2008-07-08 07:47:47 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-08 07:47:47 +0200
commit93022136fff9e6130aa128a5ed8a599e93ac813c (patch)
tree185390fb75a3d7423cc508610b76637c957205b9 /fs
parentc49c412a47b5102516d3313d4eba38cb1e968721 (diff)
parentb7279469d66b55119784b8b9529c99c1955fe747 (diff)
Merge commit 'v2.6.26-rc9' into x86/cpu
Diffstat (limited to 'fs')
-rw-r--r--fs/9p/v9fs_vfs.h2
-rw-r--r--fs/9p/vfs_file.c4
-rw-r--r--fs/9p/vfs_inode.c18
-rw-r--r--fs/Kconfig2
-rw-r--r--fs/Kconfig.binfmt2
-rw-r--r--fs/afs/callback.c2
-rw-r--r--fs/afs/inode.c2
-rw-r--r--fs/afs/super.c2
-rw-r--r--fs/aio.c4
-rw-r--r--fs/binfmt_elf.c3
-rw-r--r--fs/binfmt_elf_fdpic.c2
-rw-r--r--fs/binfmt_flat.c8
-rw-r--r--fs/block_dev.c16
-rw-r--r--fs/buffer.c13
-rw-r--r--fs/cifs/CHANGES5
-rw-r--r--fs/cifs/asn1.c14
-rw-r--r--fs/cifs/cifsfs.c21
-rw-r--r--fs/cifs/cifsglob.h3
-rw-r--r--fs/cifs/cifspdu.h23
-rw-r--r--fs/cifs/cifssmb.c12
-rw-r--r--fs/cifs/connect.c5
-rw-r--r--fs/cifs/dir.c4
-rw-r--r--fs/cifs/file.c7
-rw-r--r--fs/cifs/inode.c148
-rw-r--r--fs/cifs/misc.c3
-rw-r--r--fs/cifs/readdir.c77
-rw-r--r--fs/dcache.c68
-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h2
-rw-r--r--fs/ecryptfs/miscdev.c2
-rw-r--r--fs/ecryptfs/read_write.c22
-rw-r--r--fs/exec.c8
-rw-r--r--fs/ext3/resize.c3
-rw-r--r--fs/ext3/super.c4
-rw-r--r--fs/ext4/balloc.c71
-rw-r--r--fs/ext4/mballoc.c8
-rw-r--r--fs/ext4/resize.c6
-rw-r--r--fs/ext4/super.c40
-rw-r--r--fs/fat/file.c44
-rw-r--r--fs/fuse/inode.c4
-rw-r--r--fs/gfs2/bmap.c23
-rw-r--r--fs/gfs2/rgrp.c2
-rw-r--r--fs/jbd2/commit.c1
-rw-r--r--fs/jbd2/recovery.c12
-rw-r--r--fs/libfs.c46
-rw-r--r--fs/locks.c6
-rw-r--r--fs/namei.c26
-rw-r--r--fs/nfs/mount_clnt.c5
-rw-r--r--fs/nfs/super.c76
-rw-r--r--fs/nfs/write.c7
-rw-r--r--fs/ocfs2/cluster/nodemanager.c74
-rw-r--r--fs/ocfs2/cluster/nodemanager.h4
-rw-r--r--fs/ocfs2/cluster/tcp.c28
-rw-r--r--fs/ocfs2/cluster/tcp.h12
-rw-r--r--fs/ocfs2/cluster/tcp_internal.h32
-rw-r--r--fs/ocfs2/dlm/dlmdebug.h12
-rw-r--r--fs/ocfs2/stack_o2cb.c41
-rw-r--r--fs/ocfs2/stack_user.c37
-rw-r--r--fs/ocfs2/stackglue.c119
-rw-r--r--fs/ocfs2/stackglue.h19
-rw-r--r--fs/open.c37
-rw-r--r--fs/pipe.c10
-rw-r--r--fs/proc/array.c2
-rw-r--r--fs/proc/base.c33
-rw-r--r--fs/proc/proc_misc.c6
-rw-r--r--fs/proc/task_mmu.c175
-rw-r--r--fs/reiserfs/super.c4
-rw-r--r--fs/select.c2
-rw-r--r--fs/udf/super.c57
-rw-r--r--fs/udf/udfdecl.h2
-rw-r--r--fs/utimes.c59
70 files changed, 945 insertions, 708 deletions
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index fd01d90cada..57997fa14e6 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -51,4 +51,4 @@ int v9fs_dir_release(struct inode *inode, struct file *filp);
int v9fs_file_open(struct inode *inode, struct file *file);
void v9fs_inode2stat(struct inode *inode, struct p9_stat *stat);
void v9fs_dentry_release(struct dentry *);
-int v9fs_uflags2omode(int uflags);
+int v9fs_uflags2omode(int uflags, int extended);
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 0d55affe37d..52944d2249a 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -59,7 +59,7 @@ int v9fs_file_open(struct inode *inode, struct file *file)
P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file);
v9ses = v9fs_inode2v9ses(inode);
- omode = v9fs_uflags2omode(file->f_flags);
+ omode = v9fs_uflags2omode(file->f_flags, v9fs_extended(v9ses));
fid = file->private_data;
if (!fid) {
fid = v9fs_fid_clone(file->f_path.dentry);
@@ -75,6 +75,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
inode->i_size = 0;
inode->i_blocks = 0;
}
+ if ((file->f_flags & O_APPEND) && (!v9fs_extended(v9ses)))
+ generic_file_llseek(file, 0, SEEK_END);
}
file->private_data = fid;
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 40fa807bd92..c95295c6504 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -132,10 +132,10 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
/**
* v9fs_uflags2omode- convert posix open flags to plan 9 mode bits
* @uflags: flags to convert
- *
+ * @extended: if .u extensions are active
*/
-int v9fs_uflags2omode(int uflags)
+int v9fs_uflags2omode(int uflags, int extended)
{
int ret;
@@ -155,14 +155,16 @@ int v9fs_uflags2omode(int uflags)
break;
}
- if (uflags & O_EXCL)
- ret |= P9_OEXCL;
-
if (uflags & O_TRUNC)
ret |= P9_OTRUNC;
- if (uflags & O_APPEND)
- ret |= P9_OAPPEND;
+ if (extended) {
+ if (uflags & O_EXCL)
+ ret |= P9_OEXCL;
+
+ if (uflags & O_APPEND)
+ ret |= P9_OAPPEND;
+ }
return ret;
}
@@ -506,7 +508,7 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
flags = O_RDWR;
fid = v9fs_create(v9ses, dir, dentry, NULL, perm,
- v9fs_uflags2omode(flags));
+ v9fs_uflags2omode(flags, v9fs_extended(v9ses)));
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
fid = NULL;
diff --git a/fs/Kconfig b/fs/Kconfig
index cf12c403b8c..2694648cbd1 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -830,7 +830,7 @@ config NTFS_FS
from the project web site.
For more information see <file:Documentation/filesystems/ntfs.txt>
- and <http://linux-ntfs.sourceforge.net/>.
+ and <http://www.linux-ntfs.org/>.
To compile this file system support as a module, choose M here: the
module will be called ntfs.
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 55e8ee1900a..3263084eef9 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -42,7 +42,7 @@ config BINFMT_ELF_FDPIC
config BINFMT_FLAT
bool "Kernel support for flat binaries"
- depends on !MMU
+ depends on !MMU && (!FRV || BROKEN)
help
Support uClinux FLAT format binaries.
diff --git a/fs/afs/callback.c b/fs/afs/callback.c
index a78d5b236bb..587ef5123cd 100644
--- a/fs/afs/callback.c
+++ b/fs/afs/callback.c
@@ -8,7 +8,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * Authors: David Woodhouse <dwmw2@cambridge.redhat.com>
+ * Authors: David Woodhouse <dwmw2@infradead.org>
* David Howells <dhowells@redhat.com>
*
*/
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 08db82e1343..bb47217f6a1 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -8,7 +8,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * Authors: David Woodhouse <dwmw2@cambridge.redhat.com>
+ * Authors: David Woodhouse <dwmw2@infradead.org>
* David Howells <dhowells@redhat.com>
*
*/
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 4b572b801d8..7e3faeef681 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -10,7 +10,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Authors: David Howells <dhowells@redhat.com>
- * David Woodhouse <dwmw2@redhat.com>
+ * David Woodhouse <dwmw2@infradead.org>
*
*/
diff --git a/fs/aio.c b/fs/aio.c
index b5253e77eb2..0fb3117ddd9 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -591,10 +591,6 @@ static void use_mm(struct mm_struct *mm)
atomic_inc(&mm->mm_count);
tsk->mm = mm;
tsk->active_mm = mm;
- /*
- * Note that on UML this *requires* PF_BORROWED_MM to be set, otherwise
- * it won't work. Update it accordingly if you change it here
- */
switch_mm(active_mm, mm, tsk);
task_unlock(tsk);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 0fa95b198e6..d48ff5f370f 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -16,7 +16,6 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/mman.h>
-#include <linux/a.out.h>
#include <linux/errno.h>
#include <linux/signal.h>
#include <linux/binfmts.h>
@@ -548,7 +547,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
struct {
struct elfhdr elf_ex;
struct elfhdr interp_elf_ex;
- struct exec interp_ex;
} *loc;
loc = kmalloc(sizeof(*loc), GFP_KERNEL);
@@ -680,7 +678,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
}
/* Get the exec headers */
- loc->interp_ex = *((struct exec *)bprm->buf);
loc->interp_elf_ex = *((struct elfhdr *)bprm->buf);
break;
}
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index ddd35d87339..d051a32e627 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -390,7 +390,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
}
/* expand the stack mapping to use up the entire allocation granule */
- fullsize = ksize((char *) current->mm->start_brk);
+ fullsize = kobjsize((char *) current->mm->start_brk);
if (!IS_ERR_VALUE(do_mremap(current->mm->start_brk, stack_size,
fullsize, 0, 0)))
stack_size = fullsize;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 3b40d45a3a1..2cb1acda3a8 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -548,7 +548,7 @@ static int load_flat_file(struct linux_binprm * bprm,
PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
/* Remap to use all availabe slack region space */
if (realdatastart && (realdatastart < (unsigned long)-4096)) {
- reallen = ksize((void *)realdatastart);
+ reallen = kobjsize((void *)realdatastart);
if (reallen > len) {
realdatastart = do_mremap(realdatastart, len,
reallen, MREMAP_FIXED, realdatastart);
@@ -600,7 +600,7 @@ static int load_flat_file(struct linux_binprm * bprm,
PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
/* Remap to use all availabe slack region space */
if (textpos && (textpos < (unsigned long) -4096)) {
- reallen = ksize((void *)textpos);
+ reallen = kobjsize((void *)textpos);
if (reallen > len) {
textpos = do_mremap(textpos, len, reallen,
MREMAP_FIXED, textpos);
@@ -683,7 +683,7 @@ static int load_flat_file(struct linux_binprm * bprm,
*/
current->mm->start_brk = datapos + data_len + bss_len;
current->mm->brk = (current->mm->start_brk + 3) & ~3;
- current->mm->context.end_brk = memp + ksize((void *) memp) - stack_len;
+ current->mm->context.end_brk = memp + kobjsize((void *) memp) - stack_len;
}
if (flags & FLAT_FLAG_KTRACE)
@@ -790,7 +790,7 @@ static int load_flat_file(struct linux_binprm * bprm,
/* zero the BSS, BRK and stack areas */
memset((void*)(datapos + data_len), 0, bss_len +
- (memp + ksize((void *) memp) - stack_len - /* end brk */
+ (memp + kobjsize((void *) memp) - stack_len - /* end brk */
libinfo->lib_list[id].start_brk) + /* start brk */
stack_len);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7d822fae776..10d8a0aa871 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -12,6 +12,7 @@
#include <linux/kmod.h>
#include <linux/major.h>
#include <linux/smp_lock.h>
+#include <linux/device_cgroup.h>
#include <linux/highmem.h>
#include <linux/blkdev.h>
#include <linux/module.h>
@@ -928,9 +929,22 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part)
{
struct module *owner = NULL;
struct gendisk *disk;
- int ret = -ENXIO;
+ int ret;
int part;
+ int perm = 0;
+
+ if (file->f_mode & FMODE_READ)
+ perm |= MAY_READ;
+ if (file->f_mode & FMODE_WRITE)
+ perm |= MAY_WRITE;
+ /*
+ * hooks: /n/, see "layering violations".
+ */
+ ret = devcgroup_inode_permission(bdev->bd_inode, perm);
+ if (ret != 0)
+ return ret;
+ ret = -ENXIO;
file->f_mapping = bdev->bd_inode->i_mapping;
lock_kernel();
disk = get_gendisk(bdev->bd_dev, &part);
diff --git a/fs/buffer.c b/fs/buffer.c
index a073f3f4f01..0f51c0f7c26 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -821,7 +821,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
* contents - it is a noop if I/O is still in
* flight on potentially older contents.
*/
- ll_rw_block(SWRITE, 1, &bh);
+ ll_rw_block(SWRITE_SYNC, 1, &bh);
brelse(bh);
spin_lock(lock);
}
@@ -2940,16 +2940,19 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
for (i = 0; i < nr; i++) {
struct buffer_head *bh = bhs[i];
- if (rw == SWRITE)
+ if (rw == SWRITE || rw == SWRITE_SYNC)
lock_buffer(bh);
else if (test_set_buffer_locked(bh))
continue;
- if (rw == WRITE || rw == SWRITE) {
+ if (rw == WRITE || rw == SWRITE || rw == SWRITE_SYNC) {
if (test_clear_buffer_dirty(bh)) {
bh->b_end_io = end_buffer_write_sync;
get_bh(bh);
- submit_bh(WRITE, bh);
+ if (rw == SWRITE_SYNC)
+ submit_bh(WRITE_SYNC, bh);
+ else
+ submit_bh(WRITE, bh);
continue;
}
} else {
@@ -2978,7 +2981,7 @@ int sync_dirty_buffer(struct buffer_head *bh)
if (test_clear_buffer_dirty(bh)) {
get_bh(bh);
bh->b_end_io = end_buffer_write_sync;
- ret = submit_bh(WRITE, bh);
+ ret = submit_bh(WRITE_SYNC, bh);
wait_on_buffer(bh);
if (buffer_eopnotsupp(bh)) {
clear_buffer_eopnotsupp(bh);
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 28e3d5c5fca..1f3465201fd 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -2,6 +2,11 @@ Version 1.53
------------
DFS support added (Microsoft Distributed File System client support needed
for referrals which enable a hierarchical name space among servers).
+Disable temporary caching of mode bits to servers which do not support
+storing of mode (e.g. Windows servers, when client mounts without cifsacl
+mount option) and add new "dynperm" mount option to enable temporary caching
+of mode (enable old behavior). Fix hang on mount caused when server crashes
+tcp session during negotiate protocol.
Version 1.52
------------
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index cb52cbbe45f..f58e41d3ba4 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -186,6 +186,11 @@ asn1_length_decode(struct asn1_ctx *ctx, unsigned int *def, unsigned int *len)
}
}
}
+
+ /* don't trust len bigger than ctx buffer */
+ if (*len > ctx->end - ctx->pointer)
+ return 0;
+
return 1;
}
@@ -203,6 +208,10 @@ asn1_header_decode(struct asn1_ctx *ctx,
if (!asn1_length_decode(ctx, &def, &len))
return 0;
+ /* primitive shall be definite, indefinite shall be constructed */
+ if (*con == ASN1_PRI && !def)
+ return 0;
+
if (def)
*eoc = ctx->pointer + len;
else
@@ -389,6 +398,11 @@ asn1_oid_decode(struct asn1_ctx *ctx,
unsigned long *optr;
size = eoc - ctx->pointer + 1;
+
+ /* first subid actually encodes first two subids */
+ if (size < 2 || size > ULONG_MAX/sizeof(unsigned long))
+ return 0;
+
*oid = kmalloc(size * sizeof(unsigned long), GFP_ATOMIC);
if (*oid == NULL)
return 0;
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 5df93fd6303..86b4d5f405a 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -97,9 +97,6 @@ cifs_read_super(struct super_block *sb, void *data,
{
struct inode *inode;
struct cifs_sb_info *cifs_sb;
-#ifdef CONFIG_CIFS_DFS_UPCALL
- int len;
-#endif
int rc = 0;
/* BB should we make this contingent on mount parm? */
@@ -117,15 +114,17 @@ cifs_read_super(struct super_block *sb, void *data,
* complex operation (mount), and in case of fail
* just exit instead of doing mount and attempting
* undo it if this copy fails?*/
- len = strlen(data);
- cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL);
- if (cifs_sb->mountdata == NULL) {
- kfree(sb->s_fs_info);
- sb->s_fs_info = NULL;
- return -ENOMEM;
+ if (data) {
+ int len = strlen(data);
+ cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL);
+ if (cifs_sb->mountdata == NULL) {
+ kfree(sb->s_fs_info);
+ sb->s_fs_info = NULL;
+ return -ENOMEM;
+ }
+ strncpy(cifs_sb->mountdata, data, len + 1);
+ cifs_sb->mountdata[len] = '\0';
}
- strncpy(cifs_sb->mountdata, data, len + 1);
- cifs_sb->mountdata[len] = '\0';
#endif
rc = cifs_mount(sb, cifs_sb, data, devname);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 08914053242..9cfcf326ead 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -333,7 +333,6 @@ struct cifsFileInfo {
bool messageMode:1; /* for pipes: message vs byte mode */
atomic_t wrtPending; /* handle in use - defer close */
struct semaphore fh_sem; /* prevents reopen race after dead ses*/
- char *search_resume_name; /* BB removeme BB */
struct cifs_search_info srch_inf;
};
@@ -626,7 +625,7 @@ GLOBAL_EXTERN atomic_t tcpSesAllocCount;
GLOBAL_EXTERN atomic_t tcpSesReconnectCount;
GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
-/* Various Debug counters to remove someday (BB) */
+/* Various Debug counters */
GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
#ifdef CONFIG_CIFS_STATS2
GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 65d58b4e6a6..0f327c224da 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -79,6 +79,19 @@
#define TRANS2_GET_DFS_REFERRAL 0x10
#define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
+/* SMB Transact (Named Pipe) subcommand codes */
+#define TRANS_SET_NMPIPE_STATE 0x0001
+#define TRANS_RAW_READ_NMPIPE 0x0011
+#define TRANS_QUERY_NMPIPE_STATE 0x0021
+#define TRANS_QUERY_NMPIPE_INFO 0x0022
+#define TRANS_PEEK_NMPIPE 0x0023
+#define TRANS_TRANSACT_NMPIPE 0x0026
+#define TRANS_RAW_WRITE_NMPIPE 0x0031
+#define TRANS_READ_NMPIPE 0x0036
+#define TRANS_WRITE_NMPIPE 0x0037
+#define TRANS_WAIT_NMPIPE 0x0053
+#define TRANS_CALL_NMPIPE 0x0054
+
/* NT Transact subcommand codes */
#define NT_TRANSACT_CREATE 0x01
#define NT_TRANSACT_IOCTL 0x02
@@ -328,12 +341,13 @@
#define CREATE_COMPLETE_IF_OPLK 0x00000100 /* should be zero */
#define CREATE_NO_EA_KNOWLEDGE 0x00000200
#define CREATE_EIGHT_DOT_THREE 0x00000400 /* doc says this is obsolete
- open for recovery flag - should
- be zero */
+ "open for recovery" flag - should
+ be zero in any case */
+#define CREATE_OPEN_FOR_RECOVERY 0x00000400
#define CREATE_RANDOM_ACCESS 0x00000800
#define CREATE_DELETE_ON_CLOSE 0x00001000
#define CREATE_OPEN_BY_ID 0x00002000
-#define CREATE_OPEN_BACKUP_INTN 0x00004000
+#define CREATE_OPEN_BACKUP_INTENT 0x00004000
#define CREATE_NO_COMPRESSION 0x00008000
#define CREATE_RESERVE_OPFILTER 0x00100000 /* should be zero */
#define OPEN_REPARSE_POINT 0x00200000
@@ -722,7 +736,6 @@ typedef struct smb_com_tconx_rsp_ext {
#define SMB_CSC_CACHE_AUTO_REINT 0x0004
#define SMB_CSC_CACHE_VDO 0x0008
#define SMB_CSC_NO_CACHING 0x000C
-
#define SMB_UNIQUE_FILE_NAME 0x0010
#define SMB_EXTENDED_SIGNATURES 0x0020
@@ -806,7 +819,7 @@ typedef struct smb_com_findclose_req {
#define ICOUNT_MASK 0x00FF
#define PIPE_READ_MODE 0x0100
#define NAMED_PIPE_TYPE 0x0400
-#define PIPE_END_POINT 0x0800
+#define PIPE_END_POINT 0x4000
#define BLOCKING_NAMED_PIPE 0x8000
typedef struct smb_com_open_req { /* also handles create */
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 9b8b4cfdf99..4511b708f0f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1728,7 +1728,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
{
int rc = 0;
LOCK_REQ *pSMB = NULL;
- LOCK_RSP *pSMBr = NULL;
+/* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */
int bytes_returned;
int timeout = 0;
__u16 count;
@@ -1739,8 +1739,6 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
if (rc)
return rc;
- pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */
-
if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
timeout = CIFS_ASYNC_OP; /* no response expected */
pSMB->Timeout = 0;
@@ -1774,7 +1772,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
if (waitFlag) {
rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned);
+ (struct smb_hdr *) pSMB, &bytes_returned);
cifs_small_buf_release(pSMB);
} else {
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB,
@@ -3927,9 +3925,9 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
}
ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals);
- if (ref->VersionNumber != 3) {
+ if (ref->VersionNumber != cpu_to_le16(3)) {
cERROR(1, ("Referrals of V%d version are not supported,"
- "should be V3", ref->VersionNumber));
+ "should be V3", le16_to_cpu(ref->VersionNumber)));
rc = -EINVAL;
goto parse_DFS_referrals_exit;
}
@@ -3977,7 +3975,7 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
if (rc)
goto parse_DFS_referrals_exit;
- ref += ref->Size;
+ ref += le16_to_cpu(ref->Size);
}
parse_DFS_referrals_exit:
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 023434f72c1..e8fa46c7cff 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -653,6 +653,7 @@ multi_t2_fnd:
spin_lock(&GlobalMid_Lock);
server->tcpStatus = CifsExiting;
spin_unlock(&GlobalMid_Lock);
+ wake_up_all(&server->response_q);
/* don't exit until kthread_stop is called */
set_current_state(TASK_UNINTERRUPTIBLE);
@@ -2120,6 +2121,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
}
+ if ((volume_info.cifs_acl) && (volume_info.dynperm))
+ cERROR(1, ("mount option dynperm ignored if cifsacl "
+ "mount option supported"));
+
tcon =
find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
volume_info.username);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index f0b5b5f3dd2..fb69c1fa85c 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -260,7 +260,9 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
buf, inode->i_sb, xid,
&fileHandle);
if (newinode) {
- newinode->i_mode = mode;
+ if (cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_DYNPERM)
+ newinode->i_mode = mode;
if ((oplock & CIFS_CREATE_ACTION) &&
(cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID)) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 8636cec2642..0aac824371a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -546,7 +546,6 @@ int cifs_close(struct inode *inode, struct file *file)
msleep(timeout);
timeout *= 8;
}
- kfree(pSMBFile->search_resume_name);
kfree(file->private_data);
file->private_data = NULL;
} else
@@ -605,12 +604,6 @@ int cifs_closedir(struct inode *inode, struct file *file)
else
cifs_buf_release(ptmp);
}
- ptmp = pCFileStruct->search_resume_name;
- if (ptmp) {
- cFYI(1, ("closedir free resume name"));
- pCFileStruct->search_resume_name = NULL;
- kfree(ptmp);
- }
kfree(file->private_data);
file->private_data = NULL;
}
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 129dbfe4dca..722be543cee 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -418,6 +418,7 @@ int cifs_get_inode_info(struct inode **pinode,
char *buf = NULL;
bool adjustTZ = false;
bool is_dfs_referral = false;
+ umode_t default_mode;
pTcon = cifs_sb->tcon;
cFYI(1, ("Getting info on %s", full_path));
@@ -530,47 +531,42 @@ int cifs_get_inode_info(struct inode **pinode,
inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj;
}
- /* set default mode. will override for dirs below */
- if (atomic_read(&cifsInfo->inUse) == 0)
- /* new inode, can safely set these fields */
- inode->i_mode = cifs_sb->mnt_file_mode;
- else /* since we set the inode type below we need to mask off
- to avoid strange results if type changes and both
- get orred in */
- inode->i_mode &= ~S_IFMT;
-/* if (attr & ATTR_REPARSE) */
- /* We no longer handle these as symlinks because we could not
- follow them due to the absolute path with drive letter */
- if (attr & ATTR_DIRECTORY) {
- /* override default perms since we do not do byte range locking
- on dirs */
- inode->i_mode = cifs_sb->mnt_dir_mode;
- inode->i_mode |= S_IFDIR;
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (cifsInfo->cifsAttrs & ATTR_SYSTEM) &&
- /* No need to le64 convert size of zero */
- (pfindData->EndOfFile == 0)) {
- inode->i_mode = cifs_sb->mnt_file_mode;
- inode->i_mode |= S_IFIFO;
-/* BB Finish for SFU style symlinks and devices */
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (cifsInfo->cifsAttrs & ATTR_SYSTEM)) {
- if (decode_sfu_inode(inode, le64_to_cpu(pfindData->EndOfFile),
- full_path, cifs_sb, xid))
- cFYI(1, ("Unrecognized sfu inode type"));
-
- cFYI(1, ("sfu mode 0%o", inode->i_mode));
+ /* get default inode mode */
+ if (attr & ATTR_DIRECTORY)
+ default_mode = cifs_sb->mnt_dir_mode;
+ else
+ default_mode = cifs_sb->mnt_file_mode;
+
+ /* set permission bits */
+ if (atomic_read(&cifsInfo->inUse) == 0 ||
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ inode->i_mode = default_mode;
+ else {
+ /* just reenable write bits if !ATTR_READONLY */
+ if ((inode->i_mode & S_IWUGO) == 0 &&
+ (attr & ATTR_READONLY) == 0)
+ inode->i_mode |= (S_IWUGO & default_mode);
+ inode->i_mode &= ~S_IFMT;
+ }
+ /* clear write bits if ATTR_READONLY is set */
+ if (attr & ATTR_READONLY)
+ inode->i_mode &= ~S_IWUGO;
+
+ /* set inode type */
+ if ((attr & ATTR_SYSTEM) &&
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
+ /* no need to fix endianness on 0 */
+ if (pfindData->EndOfFile == 0)
+ inode->i_mode |= S_IFIFO;
+ else if (decode_sfu_inode(inode,
+ le64_to_cpu(pfindData->EndOfFile),
+ full_path, cifs_sb, xid))
+ cFYI(1, ("unknown SFU file type\n"));
} else {
- inode->i_mode |= S_IFREG;
- /* treat dos attribute of read-only as read-only mode eg 555 */
- if (cifsInfo->cifsAttrs & ATTR_READONLY)
- inode->i_mode &= ~(S_IWUGO);
- else if ((inode->i_mode & S_IWUGO) == 0)
- /* the ATTR_READONLY flag may have been */
- /* changed on server -- set any w bits */
- /* allowed by mnt_file_mode */
- inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode);
- /* BB add code to validate if device or weird share or device type? */
+ if (attr & ATTR_DIRECTORY)
+ inode->i_mode |= S_IFDIR;
+ else
+ inode->i_mode |= S_IFREG;
}
spin_lock(&inode->i_lock);
@@ -1019,8 +1015,11 @@ mkdir_get_info:
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
if (direntry->d_inode) {
- direntry->d_inode->i_mode = mode;
- direntry->d_inode->i_mode |= S_IFDIR;
+ if (cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_DYNPERM)
+ direntry->d_inode->i_mode =
+ (mode | S_IFDIR);
+
if (cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID) {
direntry->d_inode->i_uid =
@@ -1547,13 +1546,26 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
} else
goto cifs_setattr_exit;
}
- if (attrs->ia_valid & ATTR_UID) {
- cFYI(1, ("UID changed to %d", attrs->ia_uid));
- uid = attrs->ia_uid;
- }
- if (attrs->ia_valid & ATTR_GID) {
- cFYI(1, ("GID changed to %d", attrs->ia_gid));
- gid = attrs->ia_gid;
+
+ /*
+ * Without unix extensions we can't send ownership changes to the
+ * server, so silently ignore them. This is consistent with how
+ * local DOS/Windows filesystems behave (VFAT, NTFS, etc). With
+ * CIFSACL support + proper Windows to Unix idmapping, we may be
+ * able to support this in the future.
+ */
+ if (!pTcon->unix_ext &&
+ !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)) {
+ attrs->ia_valid &= ~(ATTR_UID | ATTR_GID);
+ } else {
+ if (attrs->ia_valid & ATTR_UID) {
+ cFYI(1, ("UID changed to %d", attrs->ia_uid));
+ uid = attrs->ia_uid;
+ }
+ if (attrs->ia_valid & ATTR_GID) {
+ cFYI(1, ("GID changed to %d", attrs->ia_gid));
+ gid = attrs->ia_gid;
+ }
}
time_buf.Attributes = 0;
@@ -1563,7 +1575,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
attrs->ia_valid &= ~ATTR_MODE;
if (attrs->ia_valid & ATTR_MODE) {
- cFYI(1, ("Mode changed to 0x%x", attrs->ia_mode));
+ cFYI(1, ("Mode changed to 0%o", attrs->ia_mode));
mode = attrs->ia_mode;
}
@@ -1578,18 +1590,18 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
#ifdef CONFIG_CIFS_EXPERIMENTAL
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
rc = mode_to_acl(inode, full_path, mode);
- else if ((mode & S_IWUGO) == 0) {
-#else
- if ((mode & S_IWUGO) == 0) {
+ else
#endif
- /* not writeable */
- if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
- set_dosattr = true;
- time_buf.Attributes =
- cpu_to_le32(cifsInode->cifsAttrs |
- ATTR_READONLY);
- }
- } else if (cifsInode->cifsAttrs & ATTR_READONLY) {
+ if (((mode & S_IWUGO) == 0) &&
+ (cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
+ set_dosattr = true;
+ time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs |
+ ATTR_READONLY);
+ /* fix up mode if we're not using dynperm */
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ attrs->ia_mode = inode->i_mode & ~S_IWUGO;
+ } else if ((mode & S_IWUGO) &&
+ (cifsInode->cifsAttrs & ATTR_READONLY)) {
/* If file is readonly on server, we would
not be able to write to it - so if any write
bit is enabled for user or group or other we
@@ -1600,6 +1612,20 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
/* Windows ignores set to zero */
if (time_buf.Attributes == 0)
time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL);
+
+ /* reset local inode permissions to normal */
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ attrs->ia_mode &= ~(S_IALLUGO);
+ if (S_ISDIR(inode->i_mode))
+ attrs->ia_mode |=
+ cifs_sb->mnt_dir_mode;
+ else
+ attrs->ia_mode |=
+ cifs_sb->mnt_file_mode;
+ }
+ } else if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
+ /* ignore mode change - ATTR_READONLY hasn't changed */
+ attrs->ia_valid &= ~ATTR_MODE;
}
}
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 1d69b8014e0..4b17f8fe315 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -519,8 +519,7 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
pnotify = (struct file_notify_information *)
((char *)&pSMBr->hdr.Protocol + data_offset);
cFYI(1, ("dnotify on %s Action: 0x%x",
- pnotify->FileName,
- pnotify->Action)); /* BB removeme BB */
+ pnotify->FileName, pnotify->Action));
/* cifs_dump_mem("Rcvd notify Data: ",buf,
sizeof(struct smb_hdr)+60); */
return true;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 713c2511019..83f30695488 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -132,6 +132,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
__u32 attr;
__u64 allocation_size;
__u64 end_of_file;
+ umode_t default_mode;
/* save mtime and size */
local_mtime = tmp_inode->i_mtime;
@@ -187,48 +188,54 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
if (atomic_read(&cifsInfo->inUse) == 0) {
tmp_inode->i_uid = cifs_sb->mnt_uid;
tmp_inode->i_gid = cifs_sb->mnt_gid;
- /* set default mode. will override for dirs below */
- tmp_inode->i_mode = cifs_sb->mnt_file_mode;
- } else {
- /* mask off the type bits since it gets set
- below and we do not want to get two type
- bits set */
+ }
+
+ if (attr & ATTR_DIRECTORY)
+ default_mode = cifs_sb->mnt_dir_mode;
+ else
+ default_mode = cifs_sb->mnt_file_mode;
+
+ /* set initial permissions */
+ if ((atomic_read(&cifsInfo->inUse) == 0) ||
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
+ tmp_inode->i_mode = default_mode;
+ else {
+ /* just reenable write bits if !ATTR_READONLY */
+ if ((tmp_inode->i_mode & S_IWUGO) == 0 &&
+ (attr & ATTR_READONLY) == 0)
+ tmp_inode->i_mode |= (S_IWUGO & default_mode);
+
tmp_inode->i_mode &= ~S_IFMT;
}
- if (attr & ATTR_DIRECTORY) {
- *pobject_type = DT_DIR;
- /* override default perms since we do not lock dirs */
- if (atomic_read(&cifsInfo->inUse) == 0)
- tmp_inode->i_mode = cifs_sb->mnt_dir_mode;
- tmp_inode->i_mode |= S_IFDIR;
- } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) &&
- (attr & ATTR_SYSTEM)) {
+ /* clear write bits if ATTR_READONLY is set */
+ if (attr & ATTR_READONLY)
+ tmp_inode->i_mode &= ~S_IWUGO;
+
+ /* set inode type */
+ if ((attr & ATTR_SYSTEM) &&
+ (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) {
if (end_of_file == 0) {
- *pobject_type = DT_FIFO;
tmp_inode->i_mode |= S_IFIFO;
+ *pobject_type = DT_FIFO;
} else {
- /* rather than get the type here, we mark the
- inode as needing revalidate and get the real type
- (blk vs chr vs. symlink) later ie in lookup */
- *pobject_type = DT_REG;
+ /*
+ * trying to get the type can be slow, so just call
+ * this a regular file for now, and mark for reval
+ */
tmp_inode->i_mode |= S_IFREG;
+ *pobject_type = DT_REG;
cifsInfo->time = 0;
}
-/* we no longer mark these because we could not follow them */
-/* } else if (attr & ATTR_REPARSE) {
- *pobject_type = DT_LNK;
- tmp_inode->i_mode |= S_IFLNK; */
} else {
- *pobject_type = DT_REG;
- tmp_inode->i_mode |= S_IFREG;
- if (attr & ATTR_READONLY)
- tmp_inode->i_mode &= ~(S_IWUGO);
- else if ((tmp_inode->i_mode & S_IWUGO) == 0)
- /* the ATTR_READONLY flag may have been changed on */
- /* server -- set any w bits allowed by mnt_file_mode */
- tmp_inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode);
- } /* could add code here - to validate if device or weird share type? */
+ if (attr & ATTR_DIRECTORY) {
+ tmp_inode->i_mode |= S_IFDIR;
+ *pobject_type = DT_DIR;
+ } else {
+ tmp_inode->i_mode |= S_IFREG;
+ *pobject_type = DT_REG;
+ }
+ }
/* can not fill in nlink here as in qpathinfo version and Unx search */
if (atomic_read(&cifsInfo->inUse) == 0)
@@ -675,8 +682,6 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
cifsFile->invalidHandle = true;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
}
- kfree(cifsFile->search_resume_name);
- cifsFile->search_resume_name = NULL;
if (cifsFile->srch_inf.ntwrk_buf_start) {
cFYI(1, ("freeing SMB ff cache buf on search rewind"));
if (cifsFile->srch_inf.smallBuf)
@@ -1043,9 +1048,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
} /* else {
cifsFile->invalidHandle = true;
CIFSFindClose(xid, pTcon, cifsFile->netfid);
- }
- kfree(cifsFile->search_resume_name);
- cifsFile->search_resume_name = NULL; */
+ } */
rc = find_cifs_entry(xid, pTcon, file,
&current_entry, &num_to_fill);
diff --git a/fs/dcache.c b/fs/dcache.c
index 3ee588d5f58..6068c25b393 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -17,6 +17,7 @@
#include <linux/syscalls.h>
#include <linux/string.h>
#include <linux/mm.h>
+#include <linux/fdtable.h>
#include <linux/fs.h>
#include <linux/fsnotify.h>
#include <linux/slab.h>
@@ -106,9 +107,10 @@ static void dentry_lru_remove(struct dentry *dentry)
/*
* Release the dentry's inode, using the filesystem
* d_iput() operation if defined.
- * Called with dcache_lock and per dentry lock held, drops both.
*/
static void dentry_iput(struct dentry * dentry)
+ __releases(dentry->d_lock)
+ __releases(dcache_lock)
{
struct inode *inode = dentry->d_inode;
if (inode) {
@@ -132,12 +134,13 @@ static void dentry_iput(struct dentry * dentry)
* d_kill - kill dentry and return parent
* @dentry: dentry to kill
*
- * Called with dcache_lock and d_lock, releases both. The dentry must
- * already be unhashed and removed from the LRU.
+ * The dentry must already be unhashed and removed from the LRU.
*
* If this is the root of the dentry tree, return NULL.
*/
static struct dentry *d_kill(struct dentry *dentry)
+ __releases(dentry->d_lock)
+ __releases(dcache_lock)
{
struct dentry *parent;
@@ -383,11 +386,11 @@ restart:
* Try to prune ancestors as well. This is necessary to prevent
* quadratic behavior of shrink_dcache_parent(), but is also expected
* to be beneficial in reducing dentry cache fragmentation.
- *
- * Called with dcache_lock, drops it and then regains.
- * Called with dentry->d_lock held, drops it.
*/
static void prune_one_dentry(struct dentry * dentry)
+ __releases(dentry->d_lock)
+ __releases(dcache_lock)
+ __acquires(dcache_lock)
{
__d_drop(dentry);
dentry = d_kill(dentry);
@@ -1604,10 +1607,9 @@ static int d_isparent(struct dentry *p1, struct dentry *p2)
*
* Note: If ever the locking in lock_rename() changes, then please
* remember to update this too...
- *
- * On return, dcache_lock will have been unlocked.
*/
static struct dentry *__d_unalias(struct dentry *dentry, struct dentry *alias)
+ __releases(dcache_lock)
{
struct mutex *m1 = NULL, *m2 = NULL;
struct dentry *ret;
@@ -1743,11 +1745,9 @@ out_nolock:
shouldnt_be_hashed:
spin_unlock(&dcache_lock);
BUG();
- goto shouldnt_be_hashed;
}
-static int prepend(char **buffer, int *buflen, const char *str,
- int namelen)
+static int prepend(char **buffer, int *buflen, const char *str, int namelen)
{
*buflen -= namelen;
if (*buflen < 0)
@@ -1757,8 +1757,13 @@ static int prepend(char **buffer, int *buflen, const char *str,
return 0;
}
+static int prepend_name(char **buffer, int *buflen, struct qstr *name)
+{
+ return prepend(buffer, buflen, name->name, name->len);
+}
+
/**
- * d_path - return the path of a dentry
+ * __d_path - return the path of a dentry
* @path: the dentry/vfsmount to report
* @root: root vfsmnt/dentry (may be modified by this function)
* @buffer: buffer to return value in
@@ -1779,9 +1784,10 @@ char *__d_path(const struct path *path, struct path *root,
{
struct dentry *dentry = path->dentry;
struct vfsmount *vfsmnt = path->mnt;
- char * end = buffer+buflen;
- char * retval;
+ char *end = buffer + buflen;
+ char *retval;
+ spin_lock(&vfsmount_lock);
prepend(&end, &buflen, "\0", 1);
if (!IS_ROOT(dentry) && d_unhashed(dentry) &&
(prepend(&end, &buflen, " (deleted)", 10) != 0))
@@ -1800,38 +1806,37 @@ char *__d_path(const struct path *path, struct path *root,
break;
if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
/* Global root? */
- spin_lock(&vfsmount_lock);
if (vfsmnt->mnt_parent == vfsmnt) {
- spin_unlock(&vfsmount_lock);
goto global_root;
}
dentry = vfsmnt->mnt_mountpoint;
vfsmnt = vfsmnt->mnt_parent;
- spin_unlock(&vfsmount_lock);
continue;
}
parent = dentry->d_parent;
prefetch(parent);
- if ((prepend(&end, &buflen, dentry->d_name.name,
- dentry->d_name.len) != 0) ||
+ if ((prepend_name(&end, &buflen, &dentry->d_name) != 0) ||
(prepend(&end, &buflen, "/", 1) != 0))
goto Elong;
retval = end;
dentry = parent;
}
+out:
+ spin_unlock(&vfsmount_lock);
return retval;
global_root:
retval += 1; /* hit the slash */
- if (prepend(&retval, &buflen, dentry->d_name.name,
- dentry->d_name.len) != 0)
+ if (prepend_name(&retval, &buflen, &dentry->d_name) != 0)
goto Elong;
root->mnt = vfsmnt;
root->dentry = dentry;
- return retval;
+ goto out;
+
Elong:
- return ERR_PTR(-ENAMETOOLONG);
+ retval = ERR_PTR(-ENAMETOOLONG);
+ goto out;
}
/**
@@ -1845,9 +1850,9 @@ Elong:
*
* Returns the buffer or an error code if the path was too long.
*
- * "buflen" should be positive. Caller holds the dcache_lock.
+ * "buflen" should be positive.
*/
-char *d_path(struct path *path, char *buf, int buflen)
+char *d_path(const struct path *path, char *buf, int buflen)
{
char *res;
struct path root;
@@ -1915,16 +1920,11 @@ char *dentry_path(struct dentry *dentry, char *buf, int buflen)
retval = end-1;
*retval = '/';
- for (;;) {
- struct dentry *parent;
- if (IS_ROOT(dentry))
- break;
+ while (!IS_ROOT(dentry)) {
+ struct dentry *parent = dentry->d_parent;
- parent = dentry->d_parent;
prefetch(parent);
-
- if ((prepend(&end, &buflen, dentry->d_name.name,
- dentry->d_name.len) != 0) ||
+ if ((prepend_name(&end, &buflen, &dentry->d_name) != 0) ||
(prepend(&end, &buflen, "/", 1) != 0))
goto Elong;
@@ -1975,7 +1975,7 @@ asmlinkage long sys_getcwd(char __user *buf, unsigned long size)
error = -ENOENT;
/* Has the current directory has been unlinked? */
spin_lock(&dcache_lock);
- if (pwd.dentry->d_parent == pwd.dentry || !d_unhashed(pwd.dentry)) {
+ if (IS_ROOT(pwd.dentry) || !d_unhashed(pwd.dentry)) {
unsigned long len;
struct path tmp = root;
char * cwd;
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 951ee33a022..c15c25745e0 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -660,8 +660,6 @@ int ecryptfs_get_tfm_and_mutex_for_cipher_name(struct crypto_blkcipher **tfm,
int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
struct ecryptfs_auth_tok **auth_tok,
char *sig);
-int ecryptfs_write_zeros(struct file *file, pgoff_t index, int start,
- int num_zeros);
int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
loff_t offset, size_t size);
int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index 50c994a249a..09a4522f65e 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -575,13 +575,11 @@ int ecryptfs_init_ecryptfs_miscdev(void)
int rc;
atomic_set(&ecryptfs_num_miscdev_opens, 0);
- mutex_lock(&ecryptfs_daemon_hash_mux);
rc = misc_register(&ecryptfs_miscdev);
if (rc)
printk(KERN_ERR "%s: Failed to register miscellaneous device "
"for communications with userspace daemons; rc = [%d]\n",
__func__, rc);
- mutex_unlock(&ecryptfs_daemon_hash_mux);
return rc;
}
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index ebf55150be5..75c2ea9fee3 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -157,20 +157,6 @@ int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
ecryptfs_page_idx, rc);
goto out;
}
- if (start_offset_in_page) {
- /* Read in the page from the lower
- * into the eCryptfs inode page cache,
- * decrypting */
- rc = ecryptfs_decrypt_page(ecryptfs_page);
- if (rc) {
- printk(KERN_ERR "%s: Error decrypting "
- "page; rc = [%d]\n",
- __func__, rc);
- ClearPageUptodate(ecryptfs_page);
- page_cache_release(ecryptfs_page);
- goto out;
- }
- }
ecryptfs_page_virt = kmap_atomic(ecryptfs_page, KM_USER0);
/*
@@ -349,14 +335,6 @@ int ecryptfs_read(char *data, loff_t offset, size_t size,
ecryptfs_page_idx, rc);
goto out;
}
- rc = ecryptfs_decrypt_page(ecryptfs_page);
- if (rc) {
- printk(KERN_ERR "%s: Error decrypting "
- "page; rc = [%d]\n", __func__, rc);
- ClearPageUptodate(ecryptfs_page);
- page_cache_release(ecryptfs_page);
- goto out;
- }
ecryptfs_page_virt = kmap_atomic(ecryptfs_page, KM_USER0);
memcpy((data + data_offset),
((char *)ecryptfs_page_virt + start_offset_in_page),
diff --git a/fs/exec.c b/fs/exec.c
index 9448f1b50b4..da94a6f05df 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -26,7 +26,6 @@
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/mman.h>
-#include <linux/a.out.h>
#include <linux/stat.h>
#include <linux/fcntl.h>
#include <linux/smp_lock.h>
@@ -61,6 +60,11 @@
#include <linux/kmod.h>
#endif
+#ifdef __alpha__
+/* for /sbin/loader handling in search_binary_handler() */
+#include <linux/a.out.h>
+#endif
+
int core_uses_pid;
char core_pattern[CORENAME_MAX_SIZE] = "core";
int suid_dumpable = 0;
@@ -1155,7 +1159,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
{
int try,retval;
struct linux_binfmt *fmt;
-#if defined(__alpha__) && defined(CONFIG_ARCH_SUPPORTS_AOUT)
+#ifdef __alpha__
/* handle /sbin/loader.. */
{
struct exec * eh = (struct exec *) bprm->buf;
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 28cfd0b4052..77278e947e9 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -580,7 +580,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
}
blk = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + EXT3_SB(sb)->s_gdb_count;
- data = (__le32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count;
+ data = (__le32 *)dind->b_data + (EXT3_SB(sb)->s_gdb_count %
+ EXT3_ADDR_PER_BLOCK(sb));
end = (__le32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb);
/* Get each reserved primary GDT block and verify it holds backups */
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index fe3119a71ad..2845425077e 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2875,8 +2875,10 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
blk++;
}
out:
- if (len == towrite)
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
return err;
+ }
if (inode->i_size < off+len-towrite) {
i_size_write(inode, off+len-towrite);
EXT3_I(inode)->i_disksize = inode->i_size;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 30494c5da84..9cc80b9cc8d 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -43,6 +43,46 @@ void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,
}
+static int ext4_block_in_group(struct super_block *sb, ext4_fsblk_t block,
+ ext4_group_t block_group)
+{
+ ext4_group_t actual_group;
+ ext4_get_group_no_and_offset(sb, block, &actual_group, 0);
+ if (actual_group == block_group)
+ return 1;
+ return 0;
+}
+
+static int ext4_group_used_meta_blocks(struct super_block *sb,
+ ext4_group_t block_group)
+{
+ ext4_fsblk_t tmp;
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ /* block bitmap, inode bitmap, and inode table blocks */
+ int used_blocks = sbi->s_itb_per_group + 2;
+
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
+ struct ext4_group_desc *gdp;
+ struct buffer_head *bh;
+
+ gdp = ext4_get_group_desc(sb, block_group, &bh);
+ if (!ext4_block_in_group(sb, ext4_block_bitmap(sb, gdp),
+ block_group))
+ used_blocks--;
+
+ if (!ext4_block_in_group(sb, ext4_inode_bitmap(sb, gdp),
+ block_group))
+ used_blocks--;
+
+ tmp = ext4_inode_table(sb, gdp);
+ for (; tmp < ext4_inode_table(sb, gdp) +
+ sbi->s_itb_per_group; tmp++) {
+ if (!ext4_block_in_group(sb, tmp, block_group))
+ used_blocks -= 1;
+ }
+ }
+ return used_blocks;
+}
/* Initializes an uninitialized block bitmap if given, and returns the
* number of blocks free in the group. */
unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
@@ -105,20 +145,34 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
free_blocks = group_blocks - bit_max;
if (bh) {
- ext4_fsblk_t start;
+ ext4_fsblk_t start, tmp;
+ int flex_bg = 0;
for (bit = 0; bit < bit_max; bit++)
ext4_set_bit(bit, bh->b_data);
start = ext4_group_first_block_no(sb, block_group);
- /* Set bits for block and inode bitmaps, and inode table */
- ext4_set_bit(ext4_block_bitmap(sb, gdp) - start, bh->b_data);
- ext4_set_bit(ext4_inode_bitmap(sb, gdp) - start, bh->b_data);
- for (bit = (ext4_inode_table(sb, gdp) - start),
- bit_max = bit + sbi->s_itb_per_group; bit < bit_max; bit++)
- ext4_set_bit(bit, bh->b_data);
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb,
+ EXT4_FEATURE_INCOMPAT_FLEX_BG))
+ flex_bg = 1;
+ /* Set bits for block and inode bitmaps, and inode table */
+ tmp = ext4_block_bitmap(sb, gdp);
+ if (!flex_bg || ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+
+ tmp = ext4_inode_bitmap(sb, gdp);
+ if (!flex_bg || ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+
+ tmp = ext4_inode_table(sb, gdp);
+ for (; tmp < ext4_inode_table(sb, gdp) +
+ sbi->s_itb_per_group; tmp++) {
+ if (!flex_bg ||
+ ext4_block_in_group(sb, tmp, block_group))
+ ext4_set_bit(tmp - start, bh->b_data);
+ }
/*
* Also if the number of blocks within the group is
* less than the blocksize * 8 ( which is the size
@@ -126,8 +180,7 @@ unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
*/
mark_bitmap_end(group_blocks, sb->s_blocksize * 8, bh->b_data);
}
-
- return free_blocks - sbi->s_itb_per_group - 2;
+ return free_blocks - ext4_group_used_meta_blocks(sb, block_group);
}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 873ad9b3418..c9900aade15 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2745,8 +2745,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
sbi = EXT4_SB(sb);
es = sbi->s_es;
- ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
- gdp->bg_free_blocks_count);
err = -EIO;
bitmap_bh = read_block_bitmap(sb, ac->ac_b_ex.fe_group);
@@ -2762,6 +2760,9 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
if (!gdp)
goto out_err;
+ ext4_debug("using block group %lu(%d)\n", ac->ac_b_ex.fe_group,
+ gdp->bg_free_blocks_count);
+
err = ext4_journal_get_write_access(handle, gdp_bh);
if (err)
goto out_err;
@@ -3094,8 +3095,7 @@ static void ext4_mb_use_inode_pa(struct ext4_allocation_context *ac,
static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
struct ext4_prealloc_space *pa)
{
- unsigned len = ac->ac_o_ex.fe_len;
-
+ unsigned int len = ac->ac_o_ex.fe_len;
ext4_get_group_no_and_offset(ac->ac_sb, pa->pa_pstart,
&ac->ac_b_ex.fe_group,
&ac->ac_b_ex.fe_start);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 9f086a6a472..9ff7b1c0423 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -563,7 +563,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
}
blk = EXT4_SB(sb)->s_sbh->b_blocknr + 1 + EXT4_SB(sb)->s_gdb_count;
- data = (__le32 *)dind->b_data + EXT4_SB(sb)->s_gdb_count;
+ data = (__le32 *)dind->b_data + (EXT4_SB(sb)->s_gdb_count %
+ EXT4_ADDR_PER_BLOCK(sb));
end = (__le32 *)dind->b_data + EXT4_ADDR_PER_BLOCK(sb);
/* Get each reserved primary GDT block and verify it holds backups */
@@ -854,7 +855,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
*/
/* Update group descriptor block for new group */
- gdp = (struct ext4_group_desc *)primary->b_data + gdb_off;
+ gdp = (struct ext4_group_desc *)((char *)primary->b_data +
+ gdb_off * EXT4_DESC_SIZE(sb));
ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 09d9359c805..02bf2434397 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -671,6 +671,7 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
unsigned long def_mount_opts;
struct super_block *sb = vfs->mnt_sb;
struct ext4_sb_info *sbi = EXT4_SB(sb);
+ journal_t *journal = sbi->s_journal;
struct ext4_super_block *es = sbi->s_es;
def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
@@ -729,8 +730,15 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_printf(seq, ",commit=%u",
(unsigned) (sbi->s_commit_interval / HZ));
}
- if (test_opt(sb, BARRIER))
- seq_puts(seq, ",barrier=1");
+ /*
+ * We're changing the default of barrier mount option, so
+ * let's always display its mount state so it's clear what its
+ * status is.
+ */
+ seq_puts(seq, ",barrier=");
+ seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
+ if (test_opt(sb, JOURNAL_ASYNC_COMMIT))
+ seq_puts(seq, ",journal_async_commit");
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
if (!test_opt(sb, EXTENTS))
@@ -1907,6 +1915,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
set_opt(sbi->s_mount_opt, RESERVATION);
+ set_opt(sbi->s_mount_opt, BARRIER);
/*
* turn on extents feature by default in ext4 filesystem
@@ -2189,6 +2198,29 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_HAS_JOURNAL)) {
if (ext4_load_journal(sb, es, journal_devnum))
goto failed_mount3;
+ if (!(sb->s_flags & MS_RDONLY) &&
+ EXT4_SB(sb)->s_journal->j_failed_commit) {
+ printk(KERN_CRIT "EXT4-fs error (device %s): "
+ "ext4_fill_super: Journal transaction "
+ "%u is corrupt\n", sb->s_id,
+ EXT4_SB(sb)->s_journal->j_failed_commit);
+ if (test_opt (sb, ERRORS_RO)) {
+ printk (KERN_CRIT
+ "Mounting filesystem read-only\n");
+ sb->s_flags |= MS_RDONLY;
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ }
+ if (test_opt(sb, ERRORS_PANIC)) {
+ EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
+ es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
+ ext4_commit_super(sb, es, 1);
+ printk(KERN_CRIT
+ "EXT4-fs (device %s): mount failed\n",
+ sb->s_id);
+ goto failed_mount4;
+ }
+ }
} else if (journal_inum) {
if (ext4_create_journal(sb, es, journal_inum))
goto failed_mount3;
@@ -3305,8 +3337,10 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
blk++;
}
out:
- if (len == towrite)
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
return err;
+ }
if (inode->i_size < off+len-towrite) {
i_size_write(inode, off+len-towrite);
EXT4_I(inode)->i_disksize = inode->i_size;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 27cc1164ec3..771326b8047 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -257,26 +257,34 @@ int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
}
EXPORT_SYMBOL_GPL(fat_getattr);
-static int fat_check_mode(const struct msdos_sb_info *sbi, struct inode *inode,
- mode_t mode)
+static int fat_sanitize_mode(const struct msdos_sb_info *sbi,
+ struct inode *inode, umode_t *mode_ptr)
{
- mode_t mask, req = mode & ~S_IFMT;
+ mode_t mask, perm;
- if (S_ISREG(mode))
+ /*
+ * Note, the basic check is already done by a caller of
+ * (attr->ia_mode & ~MSDOS_VALID_MODE)
+ */
+
+ if (S_ISREG(inode->i_mode))
mask = sbi->options.fs_fmask;
else
mask = sbi->options.fs_dmask;
+ perm = *mode_ptr & ~(S_IFMT | mask);
+
/*
* Of the r and x bits, all (subject to umask) must be present. Of the
* w bits, either all (subject to umask) or none must be present.
*/
- req &= ~mask;
- if ((req & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
+ if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
return -EPERM;
- if ((req & S_IWUGO) && ((req & S_IWUGO) != (S_IWUGO & ~mask)))
+ if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask)))
return -EPERM;
+ *mode_ptr &= S_IFMT | perm;
+
return 0;
}
@@ -299,7 +307,7 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
{
struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
struct inode *inode = dentry->d_inode;
- int mask, error = 0;
+ int error = 0;
unsigned int ia_valid;
lock_kernel();
@@ -332,12 +340,13 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
error = 0;
goto out;
}
+
if (((attr->ia_valid & ATTR_UID) &&
(attr->ia_uid != sbi->options.fs_uid)) ||
((attr->ia_valid & ATTR_GID) &&
(attr->ia_gid != sbi->options.fs_gid)) ||
((attr->ia_valid & ATTR_MODE) &&
- fat_check_mode(sbi, inode, attr->ia_mode) < 0))
+ (attr->ia_mode & ~MSDOS_VALID_MODE)))
error = -EPERM;
if (error) {
@@ -346,15 +355,16 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
goto out;
}
- error = inode_setattr(inode, attr);
- if (error)
- goto out;
+ /*
+ * We don't return -EPERM here. Yes, strange, but this is too
+ * old behavior.
+ */
+ if (attr->ia_valid & ATTR_MODE) {
+ if (fat_sanitize_mode(sbi, inode, &attr->ia_mode) < 0)
+ attr->ia_valid &= ~ATTR_MODE;
+ }
- if (S_ISDIR(inode->i_mode))
- mask = sbi->options.fs_dmask;
- else
- mask = sbi->options.fs_fmask;
- inode->i_mode &= S_IFMT | (S_IRWXUGO & ~mask);
+ error = inode_setattr(inode, attr);
out:
unlock_kernel();
return error;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 43e99513334..3141690558c 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -591,7 +591,7 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
fc->bdi.ra_pages = min(fc->bdi.ra_pages, ra_pages);
fc->minor = arg->minor;
fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
- fc->max_write = min_t(unsigned, 4096, fc->max_write);
+ fc->max_write = max_t(unsigned, 4096, fc->max_write);
fc->conn_init = 1;
}
fuse_put_request(fc, req);
@@ -667,7 +667,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
fc->flags = d.flags;
fc->user_id = d.user_id;
fc->group_id = d.group_id;
- fc->max_read = min_t(unsigned, 4096, d.max_read);
+ fc->max_read = max_t(unsigned, 4096, d.max_read);
/* Used by get_root_inode() */
sb->s_fs_info = fc;
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index c19184f2e70..bec76b1c2bb 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -246,15 +246,11 @@ static void find_metapath(const struct gfs2_sbd *sdp, u64 block,
}
-static inline unsigned int zero_metapath_length(const struct metapath *mp,
- unsigned height)
+static inline unsigned int metapath_branch_start(const struct metapath *mp)
{
- unsigned int i;
- for (i = 0; i < height - 1; i++) {
- if (mp->mp_list[i] != 0)
- return i;
- }
- return height;
+ if (mp->mp_list[0] == 0)
+ return 2;
+ return 1;
}
/**
@@ -436,7 +432,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct buffer_head *dibh = mp->mp_bh[0];
u64 bn, dblock = 0;
- unsigned n, i, blks, alloced = 0, iblks = 0, zmpl = 0;
+ unsigned n, i, blks, alloced = 0, iblks = 0, branch_start = 0;
unsigned dblks = 0;
unsigned ptrs_per_blk;
const unsigned end_of_metadata = height - 1;
@@ -471,9 +467,8 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
/* Building up tree height */
state = ALLOC_GROW_HEIGHT;
iblks = height - ip->i_height;
- zmpl = zero_metapath_length(mp, height);
- iblks -= zmpl;
- iblks += height;
+ branch_start = metapath_branch_start(mp);
+ iblks += (height - branch_start);
}
}
@@ -509,13 +504,13 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
sizeof(struct gfs2_meta_header));
*ptr = zero_bn;
state = ALLOC_GROW_DEPTH;
- for(i = zmpl; i < height; i++) {
+ for(i = branch_start; i < height; i++) {
if (mp->mp_bh[i] == NULL)
break;
brelse(mp->mp_bh[i]);
mp->mp_bh[i] = NULL;
}
- i = zmpl;
+ i = branch_start;
}
if (n == 0)
break;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 6387523a315..3401628d742 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -195,7 +195,7 @@ ulong_aligned:
depending on architecture. I've experimented with several ways
of writing this section such as using an else before the goto
but this one seems to be the fastest. */
- while ((unsigned char *)plong < end - 1) {
+ while ((unsigned char *)plong < end - sizeof(unsigned long)) {
prefetch(plong + 1);
if (((*plong) & LBITMASK) != lskipval)
break;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 4d99685fdce..a2ed72f7cee 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -168,6 +168,7 @@ static int journal_submit_commit_record(journal_t *journal,
spin_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
+ lock_buffer(bh);
set_buffer_uptodate(bh);
set_buffer_dirty(bh);
ret = submit_bh(WRITE, bh);
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 5d0405a9e7c..058f50f65b7 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -344,6 +344,7 @@ static int calc_chksums(journal_t *journal, struct buffer_head *bh,
*crc32_sum = crc32_be(*crc32_sum, (void *)obh->b_data,
obh->b_size);
}
+ put_bh(obh);
}
return 0;
}
@@ -610,9 +611,8 @@ static int do_one_pass(journal_t *journal,
chksum_err = chksum_seen = 0;
if (info->end_transaction) {
- printk(KERN_ERR "JBD: Transaction %u "
- "found to be corrupt.\n",
- next_commit_ID - 1);
+ journal->j_failed_commit =
+ info->end_transaction;
brelse(bh);
break;
}
@@ -643,10 +643,8 @@ static int do_one_pass(journal_t *journal,
if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)){
- printk(KERN_ERR
- "JBD: Transaction %u "
- "found to be corrupt.\n",
- next_commit_ID);
+ journal->j_failed_commit =
+ next_commit_ID;
brelse(bh);
break;
}
diff --git a/fs/libfs.c b/fs/libfs.c
index b004dfadd89..baeb71ee1cd 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -512,6 +512,20 @@ void simple_release_fs(struct vfsmount **mount, int *count)
mntput(mnt);
}
+/**
+ * simple_read_from_buffer - copy data from the buffer to user space
+ * @to: the user space buffer to read to
+ * @count: the maximum number of bytes to read
+ * @ppos: the current position in the buffer
+ * @from: the buffer to read from
+ * @available: the size of the buffer
+ *
+ * The simple_read_from_buffer() function reads up to @count bytes from the
+ * buffer @from at offset @ppos into the user space address starting at @to.
+ *
+ * On success, the number of bytes read is returned and the offset @ppos is
+ * advanced by this number, or negative value is returned on error.
+ **/
ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos,
const void *from, size_t available)
{
@@ -528,6 +542,37 @@ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos,
return count;
}
+/**
+ * memory_read_from_buffer - copy data from the buffer
+ * @to: the kernel space buffer to read to
+ * @count: the maximum number of bytes to read
+ * @ppos: the current position in the buffer
+ * @from: the buffer to read from
+ * @available: the size of the buffer
+ *
+ * The memory_read_from_buffer() function reads up to @count bytes from the
+ * buffer @from at offset @ppos into the kernel space address starting at @to.
+ *
+ * On success, the number of bytes read is returned and the offset @ppos is
+ * advanced by this number, or negative value is returned on error.
+ **/
+ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
+ const void *from, size_t available)
+{
+ loff_t pos = *ppos;
+
+ if (pos < 0)
+ return -EINVAL;
+ if (pos >= available)
+ return 0;
+ if (count > available - pos)
+ count = available - pos;
+ memcpy(to, from + pos, count);
+ *ppos = pos + count;
+
+ return count;
+}
+
/*
* Transaction based IO.
* The file expects a single write which triggers the transaction, and then
@@ -800,6 +845,7 @@ EXPORT_SYMBOL(simple_statfs);
EXPORT_SYMBOL(simple_sync_file);
EXPORT_SYMBOL(simple_unlink);
EXPORT_SYMBOL(simple_read_from_buffer);
+EXPORT_SYMBOL(memory_read_from_buffer);
EXPORT_SYMBOL(simple_transaction_get);
EXPORT_SYMBOL(simple_transaction_read);
EXPORT_SYMBOL(simple_transaction_release);
diff --git a/fs/locks.c b/fs/locks.c
index 11dbf08651b..dce8c747371 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -561,9 +561,6 @@ static void locks_insert_lock(struct file_lock **pos, struct file_lock *fl)
/* insert into file's list */
fl->fl_next = *pos;
*pos = fl;
-
- if (fl->fl_ops && fl->fl_ops->fl_insert)
- fl->fl_ops->fl_insert(fl);
}
/*
@@ -586,9 +583,6 @@ static void locks_delete_lock(struct file_lock **thisfl_p)
fl->fl_fasync = NULL;
}
- if (fl->fl_ops && fl->fl_ops->fl_remove)
- fl->fl_ops->fl_remove(fl);
-
if (fl->fl_nspid) {
put_pid(fl->fl_nspid);
fl->fl_nspid = NULL;
diff --git a/fs/namei.c b/fs/namei.c
index c7e43536c49..01e67dddcc3 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -581,15 +581,13 @@ static __always_inline int link_path_walk(const char *name, struct nameidata *nd
int result;
/* make sure the stuff we saved doesn't go away */
- dget(save.dentry);
- mntget(save.mnt);
+ path_get(&save);
result = __link_path_walk(name, nd);
if (result == -ESTALE) {
/* nd->path had been dropped */
nd->path = save;
- dget(nd->path.dentry);
- mntget(nd->path.mnt);
+ path_get(&nd->path);
nd->flags |= LOOKUP_REVAL;
result = __link_path_walk(name, nd);
}
@@ -1216,8 +1214,9 @@ int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt,
nd->flags = flags;
nd->depth = 0;
- nd->path.mnt = mntget(mnt);
- nd->path.dentry = dget(dentry);
+ nd->path.dentry = dentry;
+ nd->path.mnt = mnt;
+ path_get(&nd->path);
retval = path_walk(name, nd);
if (unlikely(!retval && !audit_dummy_context() && nd->path.dentry &&
@@ -2857,16 +2856,17 @@ int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
{
struct nameidata nd;
void *cookie;
+ int res;
nd.depth = 0;
cookie = dentry->d_inode->i_op->follow_link(dentry, &nd);
- if (!IS_ERR(cookie)) {
- int res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
- if (dentry->d_inode->i_op->put_link)
- dentry->d_inode->i_op->put_link(dentry, &nd, cookie);
- cookie = ERR_PTR(res);
- }
- return PTR_ERR(cookie);
+ if (IS_ERR(cookie))
+ return PTR_ERR(cookie);
+
+ res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
+ if (dentry->d_inode->i_op->put_link)
+ dentry->d_inode->i_op->put_link(dentry, &nd, cookie);
+ return res;
}
int vfs_follow_link(struct nameidata *nd, const char *link)
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 49c7cd0502c..779d2eb649c 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -130,10 +130,11 @@ static int xdr_decode_fhstatus3(struct rpc_rqst *req, __be32 *p,
struct mnt_fhstatus *res)
{
struct nfs_fh *fh = res->fh;
+ unsigned size;
if ((res->status = ntohl(*p++)) == 0) {
- int size = ntohl(*p++);
- if (size <= NFS3_FHSIZE) {
+ size = ntohl(*p++);
+ if (size <= NFS3_FHSIZE && size != 0) {
fh->size = size;
memcpy(fh->data, p, size);
} else
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2a4a024a4e7..614efeed543 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1216,8 +1216,6 @@ static int nfs_validate_mount_data(void *options,
{
struct nfs_mount_data *data = (struct nfs_mount_data *)options;
- memset(args, 0, sizeof(*args));
-
if (data == NULL)
goto out_no_data;
@@ -1251,13 +1249,13 @@ static int nfs_validate_mount_data(void *options,
case 5:
memset(data->context, 0, sizeof(data->context));
case 6:
- if (data->flags & NFS_MOUNT_VER3)
+ if (data->flags & NFS_MOUNT_VER3) {
+ if (data->root.size > NFS3_FHSIZE || data->root.size == 0)
+ goto out_invalid_fh;
mntfh->size = data->root.size;
- else
+ } else
mntfh->size = NFS2_FHSIZE;
- if (mntfh->size > sizeof(mntfh->data))
- goto out_invalid_fh;
memcpy(mntfh->data, data->root.data, mntfh->size);
if (mntfh->size < sizeof(mntfh->data))
@@ -1585,24 +1583,29 @@ static int nfs_get_sb(struct file_system_type *fs_type,
{
struct nfs_server *server = NULL;
struct super_block *s;
- struct nfs_fh mntfh;
- struct nfs_parsed_mount_data data;
+ struct nfs_parsed_mount_data *data;
+ struct nfs_fh *mntfh;
struct dentry *mntroot;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
- int error;
+ int error = -ENOMEM;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ mntfh = kzalloc(sizeof(*mntfh), GFP_KERNEL);
+ if (data == NULL || mntfh == NULL)
+ goto out_free_fh;
- security_init_mnt_opts(&data.lsm_opts);
+ security_init_mnt_opts(&data->lsm_opts);
/* Validate the mount data */
- error = nfs_validate_mount_data(raw_data, &data, &mntfh, dev_name);
+ error = nfs_validate_mount_data(raw_data, data, mntfh, dev_name);
if (error < 0)
goto out;
/* Get a volume representation */
- server = nfs_create_server(&data, &mntfh);
+ server = nfs_create_server(data, mntfh);
if (IS_ERR(server)) {
error = PTR_ERR(server);
goto out;
@@ -1630,16 +1633,16 @@ static int nfs_get_sb(struct file_system_type *fs_type,
if (!s->s_root) {
/* initial superblock/root creation */
- nfs_fill_super(s, &data);
+ nfs_fill_super(s, data);
}
- mntroot = nfs_get_root(s, &mntfh);
+ mntroot = nfs_get_root(s, mntfh);
if (IS_ERR(mntroot)) {
error = PTR_ERR(mntroot);
goto error_splat_super;
}
- error = security_sb_set_mnt_opts(s, &data.lsm_opts);
+ error = security_sb_set_mnt_opts(s, &data->lsm_opts);
if (error)
goto error_splat_root;
@@ -1649,9 +1652,12 @@ static int nfs_get_sb(struct file_system_type *fs_type,
error = 0;
out:
- kfree(data.nfs_server.hostname);
- kfree(data.mount_server.hostname);
- security_free_mnt_opts(&data.lsm_opts);
+ kfree(data->nfs_server.hostname);
+ kfree(data->mount_server.hostname);
+ security_free_mnt_opts(&data->lsm_opts);
+out_free_fh:
+ kfree(mntfh);
+ kfree(data);
return error;
out_err_nosb:
@@ -1800,8 +1806,6 @@ static int nfs4_validate_mount_data(void *options,
struct nfs4_mount_data *data = (struct nfs4_mount_data *)options;
char *c;
- memset(args, 0, sizeof(*args));
-
if (data == NULL)
goto out_no_data;
@@ -1959,26 +1963,31 @@ out_no_client_address:
static int nfs4_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
{
- struct nfs_parsed_mount_data data;
+ struct nfs_parsed_mount_data *data;
struct super_block *s;
struct nfs_server *server;
- struct nfs_fh mntfh;
+ struct nfs_fh *mntfh;
struct dentry *mntroot;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
- int error;
+ int error = -ENOMEM;
- security_init_mnt_opts(&data.lsm_opts);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ mntfh = kzalloc(sizeof(*mntfh), GFP_KERNEL);
+ if (data == NULL || mntfh == NULL)
+ goto out_free_fh;
+
+ security_init_mnt_opts(&data->lsm_opts);
/* Validate the mount data */
- error = nfs4_validate_mount_data(raw_data, &data, dev_name);
+ error = nfs4_validate_mount_data(raw_data, data, dev_name);
if (error < 0)
goto out;
/* Get a volume representation */
- server = nfs4_create_server(&data, &mntfh);
+ server = nfs4_create_server(data, mntfh);
if (IS_ERR(server)) {
error = PTR_ERR(server);
goto out;
@@ -2009,13 +2018,13 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
nfs4_fill_super(s);
}
- mntroot = nfs4_get_root(s, &mntfh);
+ mntroot = nfs4_get_root(s, mntfh);
if (IS_ERR(mntroot)) {
error = PTR_ERR(mntroot);
goto error_splat_super;
}
- error = security_sb_set_mnt_opts(s, &data.lsm_opts);
+ error = security_sb_set_mnt_opts(s, &data->lsm_opts);
if (error)
goto error_splat_root;
@@ -2025,10 +2034,13 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
error = 0;
out:
- kfree(data.client_address);
- kfree(data.nfs_server.export_path);
- kfree(data.nfs_server.hostname);
- security_free_mnt_opts(&data.lsm_opts);
+ kfree(data->client_address);
+ kfree(data->nfs_server.export_path);
+ kfree(data->nfs_server.hostname);
+ security_free_mnt_opts(&data->lsm_opts);
+out_free_fh:
+ kfree(mntfh);
+ kfree(data);
return error;
out_free:
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 6d8ace3e325..f333848fd3b 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -739,12 +739,13 @@ int nfs_updatepage(struct file *file, struct page *page,
}
status = nfs_writepage_setup(ctx, page, offset, count);
- __set_page_dirty_nobuffers(page);
+ if (status < 0)
+ nfs_set_pageerror(page);
+ else
+ __set_page_dirty_nobuffers(page);
dprintk("NFS: nfs_updatepage returns %d (isize %Ld)\n",
status, (long long)i_size_read(inode));
- if (status < 0)
- nfs_set_pageerror(page);
return status;
}
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index cf9401e8cd0..cfdb08b484e 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -21,7 +21,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/sysctl.h>
#include <linux/configfs.h>
#include "tcp.h"
@@ -36,65 +35,6 @@
* cluster references throughout where nodes are looked up */
struct o2nm_cluster *o2nm_single_cluster = NULL;
-#define OCFS2_MAX_HB_CTL_PATH 256
-static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
-
-static ctl_table ocfs2_nm_table[] = {
- {
- .ctl_name = 1,
- .procname = "hb_ctl_path",
- .data = ocfs2_hb_ctl_path,
- .maxlen = OCFS2_MAX_HB_CTL_PATH,
- .mode = 0644,
- .proc_handler = &proc_dostring,
- .strategy = &sysctl_string,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ocfs2_mod_table[] = {
- {
- .ctl_name = FS_OCFS2_NM,
- .procname = "nm",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_nm_table
- },
- { .ctl_name = 0}
-};
-
-static ctl_table ocfs2_kern_table[] = {
- {
- .ctl_name = FS_OCFS2,
- .procname = "ocfs2",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_mod_table
- },
- { .ctl_name = 0}
-};
-
-static ctl_table ocfs2_root_table[] = {
- {
- .ctl_name = CTL_FS,
- .procname = "fs",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = ocfs2_kern_table
- },
- { .ctl_name = 0 }
-};
-
-static struct ctl_table_header *ocfs2_table_header = NULL;
-
-const char *o2nm_get_hb_ctl_path(void)
-{
- return ocfs2_hb_ctl_path;
-}
-EXPORT_SYMBOL_GPL(o2nm_get_hb_ctl_path);
struct o2nm_node *o2nm_get_node_by_num(u8 node_num)
{
@@ -941,9 +881,6 @@ void o2nm_undepend_this_node(void)
static void __exit exit_o2nm(void)
{
- if (ocfs2_table_header)
- unregister_sysctl_table(ocfs2_table_header);
-
/* XXX sync with hb callbacks and shut down hb? */
o2net_unregister_hb_callbacks();
configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
@@ -964,16 +901,9 @@ static int __init init_o2nm(void)
if (ret)
goto out;
- ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
- if (!ocfs2_table_header) {
- printk(KERN_ERR "nodemanager: unable to register sysctl\n");
- ret = -ENOMEM; /* or something. */
- goto out_o2net;
- }
-
ret = o2net_register_hb_callbacks();
if (ret)
- goto out_sysctl;
+ goto out_o2net;
config_group_init(&o2nm_cluster_group.cs_subsys.su_group);
mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex);
@@ -990,8 +920,6 @@ static int __init init_o2nm(void)
configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
out_callbacks:
o2net_unregister_hb_callbacks();
-out_sysctl:
- unregister_sysctl_table(ocfs2_table_header);
out_o2net:
o2net_exit();
out:
diff --git a/fs/ocfs2/cluster/nodemanager.h b/fs/ocfs2/cluster/nodemanager.h
index 7c860361b8d..c992ea0da4a 100644
--- a/fs/ocfs2/cluster/nodemanager.h
+++ b/fs/ocfs2/cluster/nodemanager.h
@@ -33,10 +33,6 @@
#include <linux/configfs.h>
#include <linux/rbtree.h>
-#define FS_OCFS2_NM 1
-
-const char *o2nm_get_hb_ctl_path(void);
-
struct o2nm_node {
spinlock_t nd_lock;
struct config_item nd_item;
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1e44ad14881..a27d61581bd 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -142,53 +142,43 @@ static void o2net_idle_timer(unsigned long data);
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
-static void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
- u32 msgkey, struct task_struct *task, u8 node)
-{
#ifdef CONFIG_DEBUG_FS
+void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node)
+{
INIT_LIST_HEAD(&nst->st_net_debug_item);
nst->st_task = task;
nst->st_msg_type = msgtype;
nst->st_msg_key = msgkey;
nst->st_node = node;
-#endif
}
-static void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_sock_time);
-#endif
}
-static void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_send_time);
-#endif
}
-static void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
{
-#ifdef CONFIG_DEBUG_FS
do_gettimeofday(&nst->st_status_time);
-#endif
}
-static void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
struct o2net_sock_container *sc)
{
-#ifdef CONFIG_DEBUG_FS
nst->st_sc = sc;
-#endif
}
-static void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
+void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
{
-#ifdef CONFIG_DEBUG_FS
nst->st_id = msg_id;
-#endif
}
+#endif /* CONFIG_DEBUG_FS */
static inline int o2net_reconnect_delay(void)
{
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index a705d5d1903..fd6179eb26d 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -128,23 +128,23 @@ void o2net_debug_del_nst(struct o2net_send_tracking *nst);
void o2net_debug_add_sc(struct o2net_sock_container *sc);
void o2net_debug_del_sc(struct o2net_sock_container *sc);
#else
-static int o2net_debugfs_init(void)
+static inline int o2net_debugfs_init(void)
{
return 0;
}
-static void o2net_debugfs_exit(void)
+static inline void o2net_debugfs_exit(void)
{
}
-static void o2net_debug_add_nst(struct o2net_send_tracking *nst)
+static inline void o2net_debug_add_nst(struct o2net_send_tracking *nst)
{
}
-static void o2net_debug_del_nst(struct o2net_send_tracking *nst)
+static inline void o2net_debug_del_nst(struct o2net_send_tracking *nst)
{
}
-static void o2net_debug_add_sc(struct o2net_sock_container *sc)
+static inline void o2net_debug_add_sc(struct o2net_sock_container *sc)
{
}
-static void o2net_debug_del_sc(struct o2net_sock_container *sc)
+static inline void o2net_debug_del_sc(struct o2net_sock_container *sc)
{
}
#endif /* CONFIG_DEBUG_FS */
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index 8d58cfe410b..18307ff81b7 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -224,10 +224,42 @@ struct o2net_send_tracking {
struct timeval st_send_time;
struct timeval st_status_time;
};
+
+void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node);
+void o2net_set_nst_sock_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_send_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_status_time(struct o2net_send_tracking *nst);
+void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+ struct o2net_sock_container *sc);
+void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id);
+
#else
struct o2net_send_tracking {
u32 dummy;
};
+
+static inline void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+ u32 msgkey, struct task_struct *task, u8 node)
+{
+}
+static inline void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+{
+}
+static inline void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+ struct o2net_sock_container *sc)
+{
+}
+static inline void o2net_set_nst_msg_id(struct o2net_send_tracking *nst,
+ u32 msg_id)
+{
+}
#endif /* CONFIG_DEBUG_FS */
#endif /* O2CLUSTER_TCP_INTERNAL_H */
diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h
index d34a62a3a62..8c686d22f9c 100644
--- a/fs/ocfs2/dlm/dlmdebug.h
+++ b/fs/ocfs2/dlm/dlmdebug.h
@@ -60,25 +60,25 @@ void dlm_destroy_debugfs_root(void);
#else
-static int dlm_debug_init(struct dlm_ctxt *dlm)
+static inline int dlm_debug_init(struct dlm_ctxt *dlm)
{
return 0;
}
-static void dlm_debug_shutdown(struct dlm_ctxt *dlm)
+static inline void dlm_debug_shutdown(struct dlm_ctxt *dlm)
{
}
-static int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
+static inline int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
{
return 0;
}
-static void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
+static inline void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
{
}
-static int dlm_create_debugfs_root(void)
+static inline int dlm_create_debugfs_root(void)
{
return 0;
}
-static void dlm_destroy_debugfs_root(void)
+static inline void dlm_destroy_debugfs_root(void)
{
}
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index bbd1667aa7d..fcd120f1493 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -317,8 +317,7 @@ out:
return rc;
}
-static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn,
- int hangup_pending)
+static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn)
{
struct dlm_ctxt *dlm = conn->cc_lockspace;
struct o2dlm_private *priv = conn->cc_private;
@@ -333,43 +332,6 @@ static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn,
return 0;
}
-static void o2hb_stop(const char *group)
-{
- int ret;
- char *argv[5], *envp[3];
-
- argv[0] = (char *)o2nm_get_hb_ctl_path();
- argv[1] = "-K";
- argv[2] = "-u";
- argv[3] = (char *)group;
- argv[4] = NULL;
-
- mlog(0, "Run: %s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]);
-
- /* minimal command environment taken from cpu_run_sbin_hotplug */
- envp[0] = "HOME=/";
- envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
- envp[2] = NULL;
-
- ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
- if (ret < 0)
- mlog_errno(ret);
-}
-
-/*
- * Hangup is a hack for tools compatibility. Older ocfs2-tools software
- * expects the filesystem to call "ocfs2_hb_ctl" during unmount. This
- * happens regardless of whether the DLM got started, so we can't do it
- * in ocfs2_cluster_disconnect(). We bring the o2hb_stop() function into
- * the glue and provide a "hangup" API for super.c to call.
- *
- * Other stacks will eventually provide a NULL ->hangup() pointer.
- */
-static void o2cb_cluster_hangup(const char *group, int grouplen)
-{
- o2hb_stop(group);
-}
-
static int o2cb_cluster_this_node(unsigned int *node)
{
int node_num;
@@ -388,7 +350,6 @@ static int o2cb_cluster_this_node(unsigned int *node)
static struct ocfs2_stack_operations o2cb_stack_ops = {
.connect = o2cb_cluster_connect,
.disconnect = o2cb_cluster_disconnect,
- .hangup = o2cb_cluster_hangup,
.this_node = o2cb_cluster_this_node,
.dlm_lock = o2cb_dlm_lock,
.dlm_unlock = o2cb_dlm_unlock,
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index b503772cd0e..c021280dd46 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -61,7 +61,7 @@
* negotiated by the client. The client negotiates based on the maximum
* version advertised in /sys/fs/ocfs2/max_locking_protocol. The major
* number from the "SETV" message must match
- * user_stack.sp_proto->lp_max_version.pv_major, and the minor number
+ * ocfs2_user_plugin.sp_proto->lp_max_version.pv_major, and the minor number
* must be less than or equal to ...->lp_max_version.pv_minor.
*
* Once this information has been set, mounts will be allowed. From this
@@ -153,7 +153,7 @@ union ocfs2_control_message {
struct ocfs2_control_message_down u_down;
};
-static struct ocfs2_stack_plugin user_stack;
+static struct ocfs2_stack_plugin ocfs2_user_plugin;
static atomic_t ocfs2_control_opened;
static int ocfs2_control_this_node = -1;
@@ -399,7 +399,7 @@ static int ocfs2_control_do_setversion_msg(struct file *file,
char *ptr = NULL;
struct ocfs2_control_private *p = file->private_data;
struct ocfs2_protocol_version *max =
- &user_stack.sp_proto->lp_max_version;
+ &ocfs2_user_plugin.sp_proto->lp_max_version;
if (ocfs2_control_get_handshake_state(file) !=
OCFS2_CONTROL_HANDSHAKE_PROTOCOL)
@@ -680,7 +680,7 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
struct dlm_lksb *lksb = fsdlm_astarg_to_lksb(astarg);
int status = lksb->sb_status;
- BUG_ON(user_stack.sp_proto == NULL);
+ BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
/*
* For now we're punting on the issue of other non-standard errors
@@ -693,16 +693,16 @@ static void fsdlm_lock_ast_wrapper(void *astarg)
*/
if (status == -DLM_EUNLOCK || status == -DLM_ECANCEL)
- user_stack.sp_proto->lp_unlock_ast(astarg, 0);
+ ocfs2_user_plugin.sp_proto->lp_unlock_ast(astarg, 0);
else
- user_stack.sp_proto->lp_lock_ast(astarg);
+ ocfs2_user_plugin.sp_proto->lp_lock_ast(astarg);
}
static void fsdlm_blocking_ast_wrapper(void *astarg, int level)
{
- BUG_ON(user_stack.sp_proto == NULL);
+ BUG_ON(ocfs2_user_plugin.sp_proto == NULL);
- user_stack.sp_proto->lp_blocking_ast(astarg, level);
+ ocfs2_user_plugin.sp_proto->lp_blocking_ast(astarg, level);
}
static int user_dlm_lock(struct ocfs2_cluster_connection *conn,
@@ -816,8 +816,7 @@ out:
return rc;
}
-static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn,
- int hangup_pending)
+static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
{
dlm_release_lockspace(conn->cc_lockspace, 2);
conn->cc_lockspace = NULL;
@@ -838,7 +837,7 @@ static int user_cluster_this_node(unsigned int *this_node)
return 0;
}
-static struct ocfs2_stack_operations user_stack_ops = {
+static struct ocfs2_stack_operations ocfs2_user_plugin_ops = {
.connect = user_cluster_connect,
.disconnect = user_cluster_disconnect,
.this_node = user_cluster_this_node,
@@ -849,20 +848,20 @@ static struct ocfs2_stack_operations user_stack_ops = {
.dump_lksb = user_dlm_dump_lksb,
};
-static struct ocfs2_stack_plugin user_stack = {
+static struct ocfs2_stack_plugin ocfs2_user_plugin = {
.sp_name = "user",
- .sp_ops = &user_stack_ops,
+ .sp_ops = &ocfs2_user_plugin_ops,
.sp_owner = THIS_MODULE,
};
-static int __init user_stack_init(void)
+static int __init ocfs2_user_plugin_init(void)
{
int rc;
rc = ocfs2_control_init();
if (!rc) {
- rc = ocfs2_stack_glue_register(&user_stack);
+ rc = ocfs2_stack_glue_register(&ocfs2_user_plugin);
if (rc)
ocfs2_control_exit();
}
@@ -870,14 +869,14 @@ static int __init user_stack_init(void)
return rc;
}
-static void __exit user_stack_exit(void)
+static void __exit ocfs2_user_plugin_exit(void)
{
- ocfs2_stack_glue_unregister(&user_stack);
+ ocfs2_stack_glue_unregister(&ocfs2_user_plugin);
ocfs2_control_exit();
}
MODULE_AUTHOR("Oracle");
MODULE_DESCRIPTION("ocfs2 driver for userspace cluster stacks");
MODULE_LICENSE("GPL");
-module_init(user_stack_init);
-module_exit(user_stack_exit);
+module_init(ocfs2_user_plugin_init);
+module_exit(ocfs2_user_plugin_exit);
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 119f60cea9c..10e149ae5e3 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -26,6 +26,7 @@
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/sysfs.h>
+#include <linux/sysctl.h>
#include "ocfs2_fs.h"
@@ -33,11 +34,13 @@
#define OCFS2_STACK_PLUGIN_O2CB "o2cb"
#define OCFS2_STACK_PLUGIN_USER "user"
+#define OCFS2_MAX_HB_CTL_PATH 256
static struct ocfs2_locking_protocol *lproto;
static DEFINE_SPINLOCK(ocfs2_stack_lock);
static LIST_HEAD(ocfs2_stack_list);
static char cluster_stack_name[OCFS2_STACK_LABEL_LEN + 1];
+static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl";
/*
* The stack currently in use. If not null, active_stack->sp_count > 0,
@@ -349,7 +352,7 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
BUG_ON(conn == NULL);
- ret = active_stack->sp_ops->disconnect(conn, hangup_pending);
+ ret = active_stack->sp_ops->disconnect(conn);
/* XXX Should we free it anyway? */
if (!ret) {
@@ -362,13 +365,48 @@ int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
}
EXPORT_SYMBOL_GPL(ocfs2_cluster_disconnect);
+/*
+ * Leave the group for this filesystem. This is executed by a userspace
+ * program (stored in ocfs2_hb_ctl_path).
+ */
+static void ocfs2_leave_group(const char *group)
+{
+ int ret;
+ char *argv[5], *envp[3];
+
+ argv[0] = ocfs2_hb_ctl_path;
+ argv[1] = "-K";
+ argv[2] = "-u";
+ argv[3] = (char *)group;
+ argv[4] = NULL;
+
+ /* minimal command environment taken from cpu_run_sbin_hotplug */
+ envp[0] = "HOME=/";
+ envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+ envp[2] = NULL;
+
+ ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
+ if (ret < 0) {
+ printk(KERN_ERR
+ "ocfs2: Error %d running user helper "
+ "\"%s %s %s %s\"\n",
+ ret, argv[0], argv[1], argv[2], argv[3]);
+ }
+}
+
+/*
+ * Hangup is a required post-umount. ocfs2-tools software expects the
+ * filesystem to call "ocfs2_hb_ctl" during unmount. This happens
+ * regardless of whether the DLM got started, so we can't do it
+ * in ocfs2_cluster_disconnect(). The ocfs2_leave_group() function does
+ * the actual work.
+ */
void ocfs2_cluster_hangup(const char *group, int grouplen)
{
BUG_ON(group == NULL);
BUG_ON(group[grouplen] != '\0');
- if (active_stack->sp_ops->hangup)
- active_stack->sp_ops->hangup(group, grouplen);
+ ocfs2_leave_group(group);
/* cluster_disconnect() was called with hangup_pending==1 */
ocfs2_stack_driver_put();
@@ -548,10 +586,83 @@ error:
return ret;
}
+/*
+ * Sysctl bits
+ *
+ * The sysctl lives at /proc/sys/fs/ocfs2/nm/hb_ctl_path. The 'nm' doesn't
+ * make as much sense in a multiple cluster stack world, but it's safer
+ * and easier to preserve the name.
+ */
+
+#define FS_OCFS2_NM 1
+
+static ctl_table ocfs2_nm_table[] = {
+ {
+ .ctl_name = 1,
+ .procname = "hb_ctl_path",
+ .data = ocfs2_hb_ctl_path,
+ .maxlen = OCFS2_MAX_HB_CTL_PATH,
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ .strategy = &sysctl_string,
+ },
+ { .ctl_name = 0 }
+};
+
+static ctl_table ocfs2_mod_table[] = {
+ {
+ .ctl_name = FS_OCFS2_NM,
+ .procname = "nm",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_nm_table
+ },
+ { .ctl_name = 0}
+};
+
+static ctl_table ocfs2_kern_table[] = {
+ {
+ .ctl_name = FS_OCFS2,
+ .procname = "ocfs2",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_mod_table
+ },
+ { .ctl_name = 0}
+};
+
+static ctl_table ocfs2_root_table[] = {
+ {
+ .ctl_name = CTL_FS,
+ .procname = "fs",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = ocfs2_kern_table
+ },
+ { .ctl_name = 0 }
+};
+
+static struct ctl_table_header *ocfs2_table_header = NULL;
+
+
+/*
+ * Initialization
+ */
+
static int __init ocfs2_stack_glue_init(void)
{
strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB);
+ ocfs2_table_header = register_sysctl_table(ocfs2_root_table);
+ if (!ocfs2_table_header) {
+ printk(KERN_ERR
+ "ocfs2 stack glue: unable to register sysctl\n");
+ return -ENOMEM; /* or something. */
+ }
+
return ocfs2_sysfs_init();
}
@@ -559,6 +670,8 @@ static void __exit ocfs2_stack_glue_exit(void)
{
lproto = NULL;
ocfs2_sysfs_exit();
+ if (ocfs2_table_header)
+ unregister_sysctl_table(ocfs2_table_header);
}
MODULE_AUTHOR("Oracle");
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 005e4f170e0..db56281dd1b 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -134,22 +134,10 @@ struct ocfs2_stack_operations {
* be freed. Thus, a stack must not return from ->disconnect()
* until it will no longer reference the conn pointer.
*
- * If hangup_pending is zero, ocfs2_cluster_disconnect() will also
- * be dropping the reference on the module.
+ * Once this call returns, the stack glue will be dropping this
+ * connection's reference on the module.
*/
- int (*disconnect)(struct ocfs2_cluster_connection *conn,
- int hangup_pending);
-
- /*
- * ocfs2_cluster_hangup() exists for compatibility with older
- * ocfs2 tools. Only the classic stack really needs it. As such
- * ->hangup() is not required of all stacks. See the comment by
- * ocfs2_cluster_hangup() for more details.
- *
- * Note that ocfs2_cluster_hangup() can only be called if
- * hangup_pending was passed to ocfs2_cluster_disconnect().
- */
- void (*hangup)(const char *group, int grouplen);
+ int (*disconnect)(struct ocfs2_cluster_connection *conn);
/*
* ->this_node() returns the cluster's unique identifier for the
@@ -258,4 +246,5 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto)
/* Used by stack plugins */
int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
+
#endif /* STACKGLUE_H */
diff --git a/fs/open.c b/fs/open.c
index a1450086e92..a99ad09c319 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -16,6 +16,7 @@
#include <linux/namei.h>
#include <linux/backing-dev.h>
#include <linux/capability.h>
+#include <linux/securebits.h>
#include <linux/security.h>
#include <linux/mount.h>
#include <linux/vfs.h>
@@ -425,7 +426,7 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
{
struct nameidata nd;
int old_fsuid, old_fsgid;
- kernel_cap_t old_cap;
+ kernel_cap_t uninitialized_var(old_cap); /* !SECURE_NO_SETUID_FIXUP */
int res;
if (mode & ~S_IRWXO) /* where's F_OK, X_OK, W_OK, R_OK? */
@@ -433,23 +434,27 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
old_fsuid = current->fsuid;
old_fsgid = current->fsgid;
- old_cap = current->cap_effective;
current->fsuid = current->uid;
current->fsgid = current->gid;
- /*
- * Clear the capabilities if we switch to a non-root user
- *
- * FIXME: There is a race here against sys_capset. The
- * capabilities can change yet we will restore the old
- * value below. We should hold task_capabilities_lock,
- * but we cannot because user_path_walk can sleep.
- */
- if (current->uid)
- cap_clear(current->cap_effective);
- else
- current->cap_effective = current->cap_permitted;
+ if (!issecure(SECURE_NO_SETUID_FIXUP)) {
+ /*
+ * Clear the capabilities if we switch to a non-root user
+ */
+#ifndef CONFIG_SECURITY_FILE_CAPABILITIES
+ /*
+ * FIXME: There is a race here against sys_capset. The
+ * capabilities can change yet we will restore the old
+ * value below. We should hold task_capabilities_lock,
+ * but we cannot because user_path_walk can sleep.
+ */
+#endif /* ndef CONFIG_SECURITY_FILE_CAPABILITIES */
+ if (current->uid)
+ old_cap = cap_set_effective(__cap_empty_set);
+ else
+ old_cap = cap_set_effective(current->cap_permitted);
+ }
res = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW|LOOKUP_ACCESS, &nd);
if (res)
@@ -478,7 +483,9 @@ out_path_release:
out:
current->fsuid = old_fsuid;
current->fsgid = old_fsgid;
- current->cap_effective = old_cap;
+
+ if (!issecure(SECURE_NO_SETUID_FIXUP))
+ cap_set_effective(old_cap);
return res;
}
diff --git a/fs/pipe.c b/fs/pipe.c
index ec228bc9f88..700f4e0d957 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1003,8 +1003,7 @@ struct file *create_write_pipe(void)
void free_write_pipe(struct file *f)
{
free_pipe_info(f->f_dentry->d_inode);
- dput(f->f_path.dentry);
- mntput(f->f_path.mnt);
+ path_put(&f->f_path);
put_filp(f);
}
@@ -1015,8 +1014,8 @@ struct file *create_read_pipe(struct file *wrf)
return ERR_PTR(-ENFILE);
/* Grab pipe from the writer */
- f->f_path.mnt = mntget(wrf->f_path.mnt);
- f->f_path.dentry = dget(wrf->f_path.dentry);
+ f->f_path = wrf->f_path;
+ path_get(&wrf->f_path);
f->f_mapping = wrf->f_path.dentry->d_inode->i_mapping;
f->f_pos = 0;
@@ -1068,8 +1067,7 @@ int do_pipe(int *fd)
err_fdr:
put_unused_fd(fdr);
err_read_pipe:
- dput(fr->f_dentry);
- mntput(fr->f_vfsmnt);
+ path_put(&fr->f_path);
put_filp(fr);
err_write_pipe:
free_write_pipe(fw);
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 9e3b8c33c24..797d775e035 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -288,7 +288,7 @@ static void render_cap_t(struct seq_file *m, const char *header,
seq_printf(m, "%s", header);
CAP_FOR_EACH_U32(__capi) {
seq_printf(m, "%08x",
- a->cap[(_LINUX_CAPABILITY_U32S-1) - __capi]);
+ a->cap[(_KERNEL_CAPABILITY_U32S-1) - __capi]);
}
seq_printf(m, "\n");
}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index c447e0743a3..3b455371e7f 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -127,6 +127,25 @@ struct pid_entry {
NULL, &proc_single_file_operations, \
{ .proc_show = &proc_##OTYPE } )
+/*
+ * Count the number of hardlinks for the pid_entry table, excluding the .
+ * and .. links.
+ */
+static unsigned int pid_entry_count_dirs(const struct pid_entry *entries,
+ unsigned int n)
+{
+ unsigned int i;
+ unsigned int count;
+
+ count = 0;
+ for (i = 0; i < n; ++i) {
+ if (S_ISDIR(entries[i].mode))
+ ++count;
+ }
+
+ return count;
+}
+
int maps_protect;
EXPORT_SYMBOL(maps_protect);
@@ -2585,10 +2604,9 @@ static struct dentry *proc_pid_instantiate(struct inode *dir,
inode->i_op = &proc_tgid_base_inode_operations;
inode->i_fop = &proc_tgid_base_operations;
inode->i_flags|=S_IMMUTABLE;
- inode->i_nlink = 5;
-#ifdef CONFIG_SECURITY
- inode->i_nlink += 1;
-#endif
+
+ inode->i_nlink = 2 + pid_entry_count_dirs(tgid_base_stuff,
+ ARRAY_SIZE(tgid_base_stuff));
dentry->d_op = &pid_dentry_operations;
@@ -2816,10 +2834,9 @@ static struct dentry *proc_task_instantiate(struct inode *dir,
inode->i_op = &proc_tid_base_inode_operations;
inode->i_fop = &proc_tid_base_operations;
inode->i_flags|=S_IMMUTABLE;
- inode->i_nlink = 4;
-#ifdef CONFIG_SECURITY
- inode->i_nlink += 1;
-#endif
+
+ inode->i_nlink = 2 + pid_entry_count_dirs(tid_base_stuff,
+ ARRAY_SIZE(tid_base_stuff));
dentry->d_op = &pid_dentry_operations;
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 32dc14cd890..7e277f2ad46 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -716,7 +716,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf,
pfn = src / KPMSIZE;
count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
if (src & KPMMASK || count & KPMMASK)
- return -EIO;
+ return -EINVAL;
while (count > 0) {
ppage = NULL;
@@ -726,7 +726,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf,
if (!ppage)
pcount = 0;
else
- pcount = atomic_read(&ppage->_count);
+ pcount = page_mapcount(ppage);
if (put_user(pcount, out++)) {
ret = -EFAULT;
@@ -782,7 +782,7 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf,
pfn = src / KPMSIZE;
count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
if (src & KPMMASK || count & KPMMASK)
- return -EIO;
+ return -EINVAL;
while (count > 0) {
ppage = NULL;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 88717c0f941..c492449f3b4 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -315,9 +315,9 @@ struct mem_size_stats {
};
static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
- void *private)
+ struct mm_walk *walk)
{
- struct mem_size_stats *mss = private;
+ struct mem_size_stats *mss = walk->private;
struct vm_area_struct *vma = mss->vma;
pte_t *pte, ptent;
spinlock_t *ptl;
@@ -365,19 +365,21 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
return 0;
}
-static struct mm_walk smaps_walk = { .pmd_entry = smaps_pte_range };
-
static int show_smap(struct seq_file *m, void *v)
{
struct vm_area_struct *vma = v;
struct mem_size_stats mss;
int ret;
+ struct mm_walk smaps_walk = {
+ .pmd_entry = smaps_pte_range,
+ .mm = vma->vm_mm,
+ .private = &mss,
+ };
memset(&mss, 0, sizeof mss);
mss.vma = vma;
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
- walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end,
- &smaps_walk, &mss);
+ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
ret = show_map(m, v);
if (ret)
@@ -426,9 +428,9 @@ const struct file_operations proc_smaps_operations = {
};
static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
- unsigned long end, void *private)
+ unsigned long end, struct mm_walk *walk)
{
- struct vm_area_struct *vma = private;
+ struct vm_area_struct *vma = walk->private;
pte_t *pte, ptent;
spinlock_t *ptl;
struct page *page;
@@ -452,8 +454,6 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
return 0;
}
-static struct mm_walk clear_refs_walk = { .pmd_entry = clear_refs_pte_range };
-
static ssize_t clear_refs_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
@@ -476,11 +476,17 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
return -ESRCH;
mm = get_task_mm(task);
if (mm) {
+ struct mm_walk clear_refs_walk = {
+ .pmd_entry = clear_refs_pte_range,
+ .mm = mm,
+ };
down_read(&mm->mmap_sem);
- for (vma = mm->mmap; vma; vma = vma->vm_next)
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ clear_refs_walk.private = vma;
if (!is_vm_hugetlb_page(vma))
- walk_page_range(mm, vma->vm_start, vma->vm_end,
- &clear_refs_walk, vma);
+ walk_page_range(vma->vm_start, vma->vm_end,
+ &clear_refs_walk);
+ }
flush_tlb_mm(mm);
up_read(&mm->mmap_sem);
mmput(mm);
@@ -496,7 +502,7 @@ const struct file_operations proc_clear_refs_operations = {
};
struct pagemapread {
- char __user *out, *end;
+ u64 __user *out, *end;
};
#define PM_ENTRY_BYTES sizeof(u64)
@@ -519,28 +525,18 @@ struct pagemapread {
static int add_to_pagemap(unsigned long addr, u64 pfn,
struct pagemapread *pm)
{
- /*
- * Make sure there's room in the buffer for an
- * entire entry. Otherwise, only copy part of
- * the pfn.
- */
- if (pm->out + PM_ENTRY_BYTES >= pm->end) {
- if (copy_to_user(pm->out, &pfn, pm->end - pm->out))
- return -EFAULT;
- pm->out = pm->end;
- return PM_END_OF_BUFFER;
- }
-
if (put_user(pfn, pm->out))
return -EFAULT;
- pm->out += PM_ENTRY_BYTES;
+ pm->out++;
+ if (pm->out >= pm->end)
+ return PM_END_OF_BUFFER;
return 0;
}
static int pagemap_pte_hole(unsigned long start, unsigned long end,
- void *private)
+ struct mm_walk *walk)
{
- struct pagemapread *pm = private;
+ struct pagemapread *pm = walk->private;
unsigned long addr;
int err = 0;
for (addr = start; addr < end; addr += PAGE_SIZE) {
@@ -557,24 +553,45 @@ static u64 swap_pte_to_pagemap_entry(pte_t pte)
return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT);
}
+static unsigned long pte_to_pagemap_entry(pte_t pte)
+{
+ unsigned long pme = 0;
+ if (is_swap_pte(pte))
+ pme = PM_PFRAME(swap_pte_to_pagemap_entry(pte))
+ | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;
+ else if (pte_present(pte))
+ pme = PM_PFRAME(pte_pfn(pte))
+ | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;
+ return pme;
+}
+
static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
- void *private)
+ struct mm_walk *walk)
{
- struct pagemapread *pm = private;
+ struct vm_area_struct *vma;
+ struct pagemapread *pm = walk->private;
pte_t *pte;
int err = 0;
+ /* find the first VMA at or above 'addr' */
+ vma = find_vma(walk->mm, addr);
for (; addr != end; addr += PAGE_SIZE) {
u64 pfn = PM_NOT_PRESENT;
- pte = pte_offset_map(pmd, addr);
- if (is_swap_pte(*pte))
- pfn = PM_PFRAME(swap_pte_to_pagemap_entry(*pte))
- | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP;
- else if (pte_present(*pte))
- pfn = PM_PFRAME(pte_pfn(*pte))
- | PM_PSHIFT(PAGE_SHIFT) | PM_PRESENT;
- /* unmap so we're not in atomic when we copy to userspace */
- pte_unmap(pte);
+
+ /* check to see if we've left 'vma' behind
+ * and need a new, higher one */
+ if (vma && (addr >= vma->vm_end))
+ vma = find_vma(walk->mm, addr);
+
+ /* check that 'vma' actually covers this address,
+ * and that it isn't a huge page vma */
+ if (vma && (vma->vm_start <= addr) &&
+ !is_vm_hugetlb_page(vma)) {
+ pte = pte_offset_map(pmd, addr);
+ pfn = pte_to_pagemap_entry(*pte);
+ /* unmap before userspace copy */
+ pte_unmap(pte);
+ }
err = add_to_pagemap(addr, pfn, pm);
if (err)
return err;
@@ -585,11 +602,6 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
return err;
}
-static struct mm_walk pagemap_walk = {
- .pmd_entry = pagemap_pte_range,
- .pte_hole = pagemap_pte_hole
-};
-
/*
* /proc/pid/pagemap - an array mapping virtual pages to pfns
*
@@ -624,6 +636,11 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
struct pagemapread pm;
int pagecount;
int ret = -ESRCH;
+ struct mm_walk pagemap_walk;
+ unsigned long src;
+ unsigned long svpfn;
+ unsigned long start_vaddr;
+ unsigned long end_vaddr;
if (!task)
goto out;
@@ -634,7 +651,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
ret = -EINVAL;
/* file position must be aligned */
- if (*ppos % PM_ENTRY_BYTES)
+ if ((*ppos % PM_ENTRY_BYTES) || (count % PM_ENTRY_BYTES))
goto out_task;
ret = 0;
@@ -642,11 +659,15 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
if (!mm)
goto out_task;
- ret = -ENOMEM;
+
uaddr = (unsigned long)buf & PAGE_MASK;
uend = (unsigned long)(buf + count);
pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE;
- pages = kmalloc(pagecount * sizeof(struct page *), GFP_KERNEL);
+ ret = 0;
+ if (pagecount == 0)
+ goto out_mm;
+ pages = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
+ ret = -ENOMEM;
if (!pages)
goto out_mm;
@@ -664,36 +685,36 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
goto out_pages;
}
- pm.out = buf;
- pm.end = buf + count;
+ pm.out = (u64 *)buf;
+ pm.end = (u64 *)(buf + count);
- if (!ptrace_may_attach(task)) {
- ret = -EIO;
- } else {
- unsigned long src = *ppos;
- unsigned long svpfn = src / PM_ENTRY_BYTES;
- unsigned long start_vaddr = svpfn << PAGE_SHIFT;
- unsigned long end_vaddr = TASK_SIZE_OF(task);
-
- /* watch out for wraparound */
- if (svpfn > TASK_SIZE_OF(task) >> PAGE_SHIFT)
- start_vaddr = end_vaddr;
-
- /*
- * The odds are that this will stop walking way
- * before end_vaddr, because the length of the
- * user buffer is tracked in "pm", and the walk
- * will stop when we hit the end of the buffer.
- */
- ret = walk_page_range(mm, start_vaddr, end_vaddr,
- &pagemap_walk, &pm);
- if (ret == PM_END_OF_BUFFER)
- ret = 0;
- /* don't need mmap_sem for these, but this looks cleaner */
- *ppos += pm.out - buf;
- if (!ret)
- ret = pm.out - buf;
- }
+ pagemap_walk.pmd_entry = pagemap_pte_range;
+ pagemap_walk.pte_hole = pagemap_pte_hole;
+ pagemap_walk.mm = mm;
+ pagemap_walk.private = &pm;
+
+ src = *ppos;
+ svpfn = src / PM_ENTRY_BYTES;
+ start_vaddr = svpfn << PAGE_SHIFT;
+ end_vaddr = TASK_SIZE_OF(task);
+
+ /* watch out for wraparound */
+ if (svpfn > TASK_SIZE_OF(task) >> PAGE_SHIFT)
+ start_vaddr = end_vaddr;
+
+ /*
+ * The odds are that this will stop walking way
+ * before end_vaddr, because the length of the
+ * user buffer is tracked in "pm", and the walk
+ * will stop when we hit the end of the buffer.
+ */
+ ret = walk_page_range(start_vaddr, end_vaddr, &pagemap_walk);
+ if (ret == PM_END_OF_BUFFER)
+ ret = 0;
+ /* don't need mmap_sem for these, but this looks cleaner */
+ *ppos += (char *)pm.out - buf;
+ if (!ret)
+ ret = (char *)pm.out - buf;
out_pages:
for (; pagecount; pagecount--) {
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index ed424d708e6..1d40f2bd197 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2165,8 +2165,10 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
blk++;
}
out:
- if (len == towrite)
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
return err;
+ }
if (inode->i_size < off + len - towrite)
i_size_write(inode, off + len - towrite);
inode->i_version++;
diff --git a/fs/select.c b/fs/select.c
index 8dda969614a..da0e88201c3 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -249,7 +249,6 @@ int do_select(int n, fd_set_bits *fds, s64 *timeout)
retval++;
}
}
- cond_resched();
}
if (res_in)
*rinp = res_in;
@@ -257,6 +256,7 @@ int do_select(int n, fd_set_bits *fds, s64 *timeout)
*routp = res_out;
if (res_ex)
*rexp = res_ex;
+ cond_resched();
}
wait = NULL;
if (retval || !*timeout || signal_pending(current))
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 7a5f69be6ac..44cc702f96c 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -682,38 +682,26 @@ static int udf_vrs(struct super_block *sb, int silent)
/*
* Check whether there is an anchor block in the given block
*/
-static int udf_check_anchor_block(struct super_block *sb, sector_t block,
- bool varconv)
+static int udf_check_anchor_block(struct super_block *sb, sector_t block)
{
- struct buffer_head *bh = NULL;
- tag *t;
+ struct buffer_head *bh;
uint16_t ident;
- uint32_t location;
- if (varconv) {
- if (udf_fixed_to_variable(block) >=
- sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
- return 0;
- bh = sb_bread(sb, udf_fixed_to_variable(block));
- }
- else
- bh = sb_bread(sb, block);
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
+ udf_fixed_to_variable(block) >=
+ sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+ return 0;
+ bh = udf_read_tagged(sb, block, block, &ident);
if (!bh)
return 0;
-
- t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
brelse(bh);
- if (ident != TAG_IDENT_AVDP)
- return 0;
- return location == block;
+
+ return ident == TAG_IDENT_AVDP;
}
/* Search for an anchor volume descriptor pointer */
-static sector_t udf_scan_anchors(struct super_block *sb, bool varconv,
- sector_t lastblock)
+static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock)
{
sector_t last[6];
int i;
@@ -739,7 +727,7 @@ static sector_t udf_scan_anchors(struct super_block *sb, bool varconv,
sb->s_blocksize_bits)
continue;
- if (udf_check_anchor_block(sb, last[i], varconv)) {
+ if (udf_check_anchor_block(sb, last[i])) {
sbi->s_anchor[0] = last[i];
sbi->s_anchor[1] = last[i] - 256;
return last[i];
@@ -748,17 +736,17 @@ static sector_t udf_scan_anchors(struct super_block *sb, bool varconv,
if (last[i] < 256)
continue;
- if (udf_check_anchor_block(sb, last[i] - 256, varconv)) {
+ if (udf_check_anchor_block(sb, last[i] - 256)) {
sbi->s_anchor[1] = last[i] - 256;
return last[i];
}
}
- if (udf_check_anchor_block(sb, sbi->s_session + 256, varconv)) {
+ if (udf_check_anchor_block(sb, sbi->s_session + 256)) {
sbi->s_anchor[0] = sbi->s_session + 256;
return last[0];
}
- if (udf_check_anchor_block(sb, sbi->s_session + 512, varconv)) {
+ if (udf_check_anchor_block(sb, sbi->s_session + 512)) {
sbi->s_anchor[0] = sbi->s_session + 512;
return last[0];
}
@@ -780,23 +768,24 @@ static void udf_find_anchor(struct super_block *sb)
int i;
struct udf_sb_info *sbi = UDF_SB(sb);
- lastblock = udf_scan_anchors(sb, 0, sbi->s_last_block);
+ lastblock = udf_scan_anchors(sb, sbi->s_last_block);
if (lastblock)
goto check_anchor;
/* No anchor found? Try VARCONV conversion of block numbers */
+ UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
/* Firstly, we try to not convert number of the last block */
- lastblock = udf_scan_anchors(sb, 1,
+ lastblock = udf_scan_anchors(sb,
udf_variable_to_fixed(sbi->s_last_block));
- if (lastblock) {
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ if (lastblock)
goto check_anchor;
- }
/* Secondly, we try with converted number of the last block */
- lastblock = udf_scan_anchors(sb, 1, sbi->s_last_block);
- if (lastblock)
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ lastblock = udf_scan_anchors(sb, sbi->s_last_block);
+ if (!lastblock) {
+ /* VARCONV didn't help. Clear it. */
+ UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV);
+ }
check_anchor:
/*
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 8fa9c2d7091..8ec865de5f1 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -16,7 +16,7 @@
#define UDF_PREALLOCATE
#define UDF_DEFAULT_PREALLOC_BLOCKS 8
-#define UDFFS_DEBUG
+#undef UDFFS_DEBUG
#ifdef UDFFS_DEBUG
#define udf_debug(f, a...) \
diff --git a/fs/utimes.c b/fs/utimes.c
index af059d5cb48..b6b664e7145 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -40,14 +40,9 @@ asmlinkage long sys_utime(char __user *filename, struct utimbuf __user *times)
#endif
-static bool nsec_special(long nsec)
-{
- return nsec == UTIME_OMIT || nsec == UTIME_NOW;
-}
-
static bool nsec_valid(long nsec)
{
- if (nsec_special(nsec))
+ if (nsec == UTIME_OMIT || nsec == UTIME_NOW)
return true;
return nsec >= 0 && nsec <= 999999999;
@@ -102,7 +97,11 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
if (error)
goto dput_and_out;
- /* Don't worry, the checks are done in inode_change_ok() */
+ if (times && times[0].tv_nsec == UTIME_NOW &&
+ times[1].tv_nsec == UTIME_NOW)
+ times = NULL;
+
+ /* In most cases, the checks are done in inode_change_ok() */
newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME;
if (times) {
error = -EPERM;
@@ -124,28 +123,34 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags
newattrs.ia_mtime.tv_nsec = times[1].tv_nsec;
newattrs.ia_valid |= ATTR_MTIME_SET;
}
- }
- /*
- * If times is NULL or both times are either UTIME_OMIT or
- * UTIME_NOW, then need to check permissions, because
- * inode_change_ok() won't do it.
- */
- if (!times || (nsec_special(times[0].tv_nsec) &&
- nsec_special(times[1].tv_nsec))) {
+ /*
+ * For the UTIME_OMIT/UTIME_NOW and UTIME_NOW/UTIME_OMIT
+ * cases, we need to make an extra check that is not done by
+ * inode_change_ok().
+ */
+ if (((times[0].tv_nsec == UTIME_NOW &&
+ times[1].tv_nsec == UTIME_OMIT)
+ ||
+ (times[0].tv_nsec == UTIME_OMIT &&
+ times[1].tv_nsec == UTIME_NOW))
+ && !is_owner_or_cap(inode))
+ goto mnt_drop_write_and_out;
+ } else {
+
+ /*
+ * If times is NULL (or both times are UTIME_NOW),
+ * then we need to check permissions, because
+ * inode_change_ok() won't do it.
+ */
error = -EACCES;
if (IS_IMMUTABLE(inode))
goto mnt_drop_write_and_out;
if (!is_owner_or_cap(inode)) {
- if (f) {
- if (!(f->f_mode & FMODE_WRITE))
- goto mnt_drop_write_and_out;
- } else {
- error = vfs_permission(&nd, MAY_WRITE);
- if (error)
- goto mnt_drop_write_and_out;
- }
+ error = permission(inode, MAY_WRITE, NULL);
+ if (error)
+ goto mnt_drop_write_and_out;
}
}
mutex_lock(&inode->i_mutex);
@@ -169,14 +174,6 @@ asmlinkage long sys_utimensat(int dfd, char __user *filename, struct timespec __
if (utimes) {
if (copy_from_user(&tstimes, utimes, sizeof(tstimes)))
return -EFAULT;
- if ((tstimes[0].tv_nsec == UTIME_OMIT ||
- tstimes[0].tv_nsec == UTIME_NOW) &&
- tstimes[0].tv_sec != 0)
- return -EINVAL;
- if ((tstimes[1].tv_nsec == UTIME_OMIT ||
- tstimes[1].tv_nsec == UTIME_NOW) &&
- tstimes[1].tv_sec != 0)
- return -EINVAL;
/* Nothing to do, we must not even check the path. */
if (tstimes[0].tv_nsec == UTIME_OMIT &&