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Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c137
1 files changed, 84 insertions, 53 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 39c2cbdface..86b4d5f405a 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/cifsfs.c
*
- * Copyright (C) International Business Machines Corp., 2002,2007
+ * Copyright (C) International Business Machines Corp., 2002,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Common Internet FileSystem (CIFS) client
@@ -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);
@@ -222,50 +221,50 @@ static int
cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
- int xid;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifsTconInfo *tcon = cifs_sb->tcon;
int rc = -EOPNOTSUPP;
- struct cifs_sb_info *cifs_sb;
- struct cifsTconInfo *pTcon;
+ int xid;
xid = GetXid();
- cifs_sb = CIFS_SB(sb);
- pTcon = cifs_sb->tcon;
-
buf->f_type = CIFS_MAGIC_NUMBER;
- /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */
- buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would
- presumably be total path, but note
- that some servers (includinng Samba 3)
- have a shorter maximum path */
+ /*
+ * PATH_MAX may be too long - it would presumably be total path,
+ * but note that some servers (includinng Samba 3) have a shorter
+ * maximum path.
+ *
+ * Instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO.
+ */
+ buf->f_namelen = PATH_MAX;
buf->f_files = 0; /* undefined */
buf->f_ffree = 0; /* unlimited */
-/* BB we could add a second check for a QFS Unix capability bit */
-/* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */
- if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS &
- le64_to_cpu(pTcon->fsUnixInfo.Capability)))
- rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);
-
- /* Only need to call the old QFSInfo if failed
- on newer one */
- if (rc)
- if (pTcon->ses->capabilities & CAP_NT_SMBS)
- rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */
-
- /* Some old Windows servers also do not support level 103, retry with
- older level one if old server failed the previous call or we
- bypassed it because we detected that this was an older LANMAN sess */
+ /*
+ * We could add a second check for a QFS Unix capability bit
+ */
+ if ((tcon->ses->capabilities & CAP_UNIX) &&
+ (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
+ rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
+
+ /*
+ * Only need to call the old QFSInfo if failed on newer one,
+ * e.g. by OS/2.
+ **/
+ if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
+ rc = CIFSSMBQFSInfo(xid, tcon, buf);
+
+ /*
+ * Some old Windows servers also do not support level 103, retry with
+ * older level one if old server failed the previous call or we
+ * bypassed it because we detected that this was an older LANMAN sess
+ */
if (rc)
- rc = SMBOldQFSInfo(xid, pTcon, buf);
- /* int f_type;
- __fsid_t f_fsid;
- int f_namelen; */
- /* BB get from info in tcon struct at mount time call to QFSAttrInfo */
+ rc = SMBOldQFSInfo(xid, tcon, buf);
+
FreeXid(xid);
- return 0; /* always return success? what if volume is no
- longer available? */
+ return 0;
}
static int cifs_permission(struct inode *inode, int mask, struct nameidata *nd)
@@ -306,8 +305,8 @@ cifs_alloc_inode(struct super_block *sb)
/* Until the file is open and we have gotten oplock
info back from the server, can not assume caching of
file data or metadata */
- cifs_inode->clientCanCacheRead = FALSE;
- cifs_inode->clientCanCacheAll = FALSE;
+ cifs_inode->clientCanCacheRead = false;
+ cifs_inode->clientCanCacheAll = false;
cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
/* Can not set i_flags here - they get immediately overwritten
@@ -353,9 +352,41 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) ||
!(cifs_sb->tcon->unix_ext))
seq_printf(s, ",gid=%d", cifs_sb->mnt_gid);
+ if (!cifs_sb->tcon->unix_ext) {
+ seq_printf(s, ",file_mode=0%o,dir_mode=0%o",
+ cifs_sb->mnt_file_mode,
+ cifs_sb->mnt_dir_mode);
+ }
+ if (cifs_sb->tcon->seal)
+ seq_printf(s, ",seal");
+ if (cifs_sb->tcon->nocase)
+ seq_printf(s, ",nocase");
+ if (cifs_sb->tcon->retry)
+ seq_printf(s, ",hard");
}
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
seq_printf(s, ",posixpaths");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)
+ seq_printf(s, ",setuids");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+ seq_printf(s, ",serverino");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO)
+ seq_printf(s, ",directio");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR)
+ seq_printf(s, ",nouser_xattr");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ seq_printf(s, ",mapchars");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)
+ seq_printf(s, ",sfu");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ seq_printf(s, ",nobrl");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ seq_printf(s, ",cifsacl");
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)
+ seq_printf(s, ",dynperm");
+ if (m->mnt_sb->s_flags & MS_POSIXACL)
+ seq_printf(s, ",acl");
+
seq_printf(s, ",rsize=%d", cifs_sb->rsize);
seq_printf(s, ",wsize=%d", cifs_sb->wsize);
}
@@ -657,7 +688,7 @@ const struct file_operations cifs_file_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_POSIX
- .ioctl = cifs_ioctl,
+ .unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
#ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -677,7 +708,7 @@ const struct file_operations cifs_file_direct_ops = {
.flush = cifs_flush,
.splice_read = generic_file_splice_read,
#ifdef CONFIG_CIFS_POSIX
- .ioctl = cifs_ioctl,
+ .unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -697,7 +728,7 @@ const struct file_operations cifs_file_nobrl_ops = {
.splice_read = generic_file_splice_read,
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_POSIX
- .ioctl = cifs_ioctl,
+ .unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
#ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -716,7 +747,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
.flush = cifs_flush,
.splice_read = generic_file_splice_read,
#ifdef CONFIG_CIFS_POSIX
- .ioctl = cifs_ioctl,
+ .unlocked_ioctl = cifs_ioctl,
#endif /* CONFIG_CIFS_POSIX */
.llseek = cifs_llseek,
#ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -731,7 +762,7 @@ const struct file_operations cifs_dir_ops = {
#ifdef CONFIG_CIFS_EXPERIMENTAL
.dir_notify = cifs_dir_notify,
#endif /* CONFIG_CIFS_EXPERIMENTAL */
- .ioctl = cifs_ioctl,
+ .unlocked_ioctl = cifs_ioctl,
};
static void
@@ -940,7 +971,7 @@ static int cifs_oplock_thread(void *dummyarg)
rc = CIFSSMBLock(0, pTcon, netfid,
0 /* len */ , 0 /* offset */, 0,
0, LOCKING_ANDX_OPLOCK_RELEASE,
- 0 /* wait flag */);
+ false /* wait flag */);
cFYI(1, ("Oplock release rc = %d", rc));
}
} else
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 21:30:05 +0000