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/nfs | |
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/nfs')
-rw-r--r-- | fs/nfs/inode.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index ff645a961bc8..937fbfc381bb 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c | |||
@@ -65,7 +65,7 @@ static int nfs_write_inode(struct inode *,int); | |||
65 | static void nfs_delete_inode(struct inode *); | 65 | static void nfs_delete_inode(struct inode *); |
66 | static void nfs_clear_inode(struct inode *); | 66 | static void nfs_clear_inode(struct inode *); |
67 | static void nfs_umount_begin(struct super_block *); | 67 | static void nfs_umount_begin(struct super_block *); |
68 | static int nfs_statfs(struct super_block *, struct kstatfs *); | 68 | static int nfs_statfs(struct dentry *, struct kstatfs *); |
69 | static int nfs_show_options(struct seq_file *, struct vfsmount *); | 69 | static int nfs_show_options(struct seq_file *, struct vfsmount *); |
70 | static int nfs_show_stats(struct seq_file *, struct vfsmount *); | 70 | static int nfs_show_stats(struct seq_file *, struct vfsmount *); |
71 | static void nfs_zap_acl_cache(struct inode *); | 71 | static void nfs_zap_acl_cache(struct inode *); |
@@ -534,8 +534,9 @@ nfs_fill_super(struct super_block *sb, struct nfs_mount_data *data, int silent) | |||
534 | } | 534 | } |
535 | 535 | ||
536 | static int | 536 | static int |
537 | nfs_statfs(struct super_block *sb, struct kstatfs *buf) | 537 | nfs_statfs(struct dentry *dentry, struct kstatfs *buf) |
538 | { | 538 | { |
539 | struct super_block *sb = dentry->d_sb; | ||
539 | struct nfs_server *server = NFS_SB(sb); | 540 | struct nfs_server *server = NFS_SB(sb); |
540 | unsigned char blockbits; | 541 | unsigned char blockbits; |
541 | unsigned long blockres; | 542 | unsigned long blockres; |