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authorDavid Howells <dhowells@redhat.com>2006-06-23 05:02:58 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 10:42:45 -0400
commit726c334223180e3c0197cc980a432681370d4baf (patch)
tree8327b354bb3dc959a6606051ae6f8d4d035e38a2 /Documentation/filesystems/vfs.txt
parent454e2398be9b9fa30433fccc548db34d19aa9958 (diff)
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
Give the statfs superblock operation a dentry pointer rather than a superblock pointer. This complements the get_sb() patch. That reduced the significance of sb->s_root, allowing NFS to place a fake root there. However, NFS does require a dentry to use as a target for the statfs operation. This permits the root in the vfsmount to be used instead. linux/mount.h has been added where necessary to make allyesconfig build successfully. Interest has also been expressed for use with the FUSE and XFS filesystems. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/filesystems/vfs.txt')
-rw-r--r--Documentation/filesystems/vfs.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index dd7d0dcedc87..9d3aed628bc1 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -211,7 +211,7 @@ struct super_operations {
211 int (*sync_fs)(struct super_block *sb, int wait); 211 int (*sync_fs)(struct super_block *sb, int wait);
212 void (*write_super_lockfs) (struct super_block *); 212 void (*write_super_lockfs) (struct super_block *);
213 void (*unlockfs) (struct super_block *); 213 void (*unlockfs) (struct super_block *);
214 int (*statfs) (struct super_block *, struct kstatfs *); 214 int (*statfs) (struct dentry *, struct kstatfs *);
215 int (*remount_fs) (struct super_block *, int *, char *); 215 int (*remount_fs) (struct super_block *, int *, char *);
216 void (*clear_inode) (struct inode *); 216 void (*clear_inode) (struct inode *);
217 void (*umount_begin) (struct super_block *); 217 void (*umount_begin) (struct super_block *);