diff options
| author | David Howells <dhowells@redhat.com> | 2006-06-23 02:02:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:42:45 -0700 |
| commit | 726c334223180e3c0197cc980a432681370d4baf (patch) | |
| tree | 8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/efs | |
| parent | 454e2398be9b9fa30433fccc548db34d19aa9958 (diff) | |
| download | lwn-726c334223180e3c0197cc980a432681370d4baf.tar.gz lwn-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/efs')
| -rw-r--r-- | fs/efs/super.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/efs/super.c b/fs/efs/super.c index 1ba5e14f879f..8ac2462ae5dd 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -15,7 +15,7 @@ #include <linux/buffer_head.h> #include <linux/vfs.h> -static int efs_statfs(struct super_block *s, struct kstatfs *buf); +static int efs_statfs(struct dentry *dentry, struct kstatfs *buf); static int efs_fill_super(struct super_block *s, void *d, int silent); static int efs_get_sb(struct file_system_type *fs_type, @@ -322,8 +322,8 @@ out_no_fs: return -EINVAL; } -static int efs_statfs(struct super_block *s, struct kstatfs *buf) { - struct efs_sb_info *sb = SUPER_INFO(s); +static int efs_statfs(struct dentry *dentry, struct kstatfs *buf) { + struct efs_sb_info *sb = SUPER_INFO(dentry->d_sb); buf->f_type = EFS_SUPER_MAGIC; /* efs magic number */ buf->f_bsize = EFS_BLOCKSIZE; /* blocksize */ |