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| author | David Howells <dhowells@redhat.com> | 2006-06-23 13:02:58 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 18:42:45 +0400 |
| commit | 726c334223180e3c0197cc980a432681370d4baf (patch) | |
| tree | 8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/cramfs | |
| parent | 454e2398be9b9fa30433fccc548db34d19aa9958 (diff) | |
| download | linux-726c334223180e3c0197cc980a432681370d4baf.tar.xz | |
[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 'fs/cramfs')
| -rw-r--r-- | fs/cramfs/inode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 37a91a153aa5..8a9d5d3b3262 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -322,8 +322,10 @@ out: return -EINVAL; } -static int cramfs_statfs(struct super_block *sb, struct kstatfs *buf) +static int cramfs_statfs(struct dentry *dentry, struct kstatfs *buf) { + struct super_block *sb = dentry->d_sb; + buf->f_type = CRAMFS_MAGIC; buf->f_bsize = PAGE_CACHE_SIZE; buf->f_blocks = CRAMFS_SB(sb)->blocks; |