diff options
author | David Howells <dhowells@redhat.com> | 2006-06-23 05:02:58 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 10:42:45 -0400 |
commit | 726c334223180e3c0197cc980a432681370d4baf (patch) | |
tree | 8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/isofs/inode.c | |
parent | 454e2398be9b9fa30433fccc548db34d19aa9958 (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 'fs/isofs/inode.c')
-rw-r--r-- | fs/isofs/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 17268da63a4..3f9c8ba1fa1 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c | |||
@@ -56,7 +56,7 @@ static void isofs_put_super(struct super_block *sb) | |||
56 | } | 56 | } |
57 | 57 | ||
58 | static void isofs_read_inode(struct inode *); | 58 | static void isofs_read_inode(struct inode *); |
59 | static int isofs_statfs (struct super_block *, struct kstatfs *); | 59 | static int isofs_statfs (struct dentry *, struct kstatfs *); |
60 | 60 | ||
61 | static kmem_cache_t *isofs_inode_cachep; | 61 | static kmem_cache_t *isofs_inode_cachep; |
62 | 62 | ||
@@ -901,8 +901,10 @@ out_freesbi: | |||
901 | return -EINVAL; | 901 | return -EINVAL; |
902 | } | 902 | } |
903 | 903 | ||
904 | static int isofs_statfs (struct super_block *sb, struct kstatfs *buf) | 904 | static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf) |
905 | { | 905 | { |
906 | struct super_block *sb = dentry->d_sb; | ||
907 | |||
906 | buf->f_type = ISOFS_SUPER_MAGIC; | 908 | buf->f_type = ISOFS_SUPER_MAGIC; |
907 | buf->f_bsize = sb->s_blocksize; | 909 | buf->f_bsize = sb->s_blocksize; |
908 | buf->f_blocks = (ISOFS_SB(sb)->s_nzones | 910 | buf->f_blocks = (ISOFS_SB(sb)->s_nzones |