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authorDavid Howells <dhowells@redhat.com>2006-06-23 05:02:58 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 10:42:45 -0400
commit726c334223180e3c0197cc980a432681370d4baf (patch)
tree8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/jfs
parent454e2398be9b9fa30433fccc548db34d19aa9958 (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/jfs')
-rw-r--r--fs/jfs/super.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 18a28137b90e..73d2aba084c6 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -139,9 +139,9 @@ static void jfs_destroy_inode(struct inode *inode)
139 kmem_cache_free(jfs_inode_cachep, ji); 139 kmem_cache_free(jfs_inode_cachep, ji);
140} 140}
141 141
142static int jfs_statfs(struct super_block *sb, struct kstatfs *buf) 142static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
143{ 143{
144 struct jfs_sb_info *sbi = JFS_SBI(sb); 144 struct jfs_sb_info *sbi = JFS_SBI(dentry->d_sb);
145 s64 maxinodes; 145 s64 maxinodes;
146 struct inomap *imap = JFS_IP(sbi->ipimap)->i_imap; 146 struct inomap *imap = JFS_IP(sbi->ipimap)->i_imap;
147 147