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authorDavid Howells <dhowells@redhat.com>2006-06-23 11:02:58 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 16:42:45 +0200
commit726c334223180e3c0197cc980a432681370d4baf (patch)
tree8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/xfs
parent[PATCH] VFS: Permit filesystem to override root dentry on mount (diff)
downloadlinux-726c334223180e3c0197cc980a432681370d4baf.tar.xz
linux-726c334223180e3c0197cc980a432681370d4baf.zip
[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/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index d03c89a36655..4fb0fc65af34 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -684,10 +684,10 @@ xfs_fs_sync_super(
STATIC int
xfs_fs_statfs(
- struct super_block *sb,
+ struct dentry *dentry,
struct kstatfs *statp)
{
- return -bhv_vfs_statvfs(vfs_from_sb(sb), statp, NULL);
+ return -bhv_vfs_statvfs(vfs_from_sb(dentry->d_sb), statp, NULL);
}
STATIC int