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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/jffs2/fs.c
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/jffs2/fs.c')
-rw-r--r--fs/jffs2/fs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 7b6c24b14f85..2900ec3ec3af 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -192,9 +192,9 @@ int jffs2_setattr(struct dentry *dentry, struct iattr *iattr)
192 return rc; 192 return rc;
193} 193}
194 194
195int jffs2_statfs(struct super_block *sb, struct kstatfs *buf) 195int jffs2_statfs(struct dentry *dentry, struct kstatfs *buf)
196{ 196{
197 struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); 197 struct jffs2_sb_info *c = JFFS2_SB_INFO(dentry->d_sb);
198 unsigned long avail; 198 unsigned long avail;
199 199
200 buf->f_type = JFFS2_SUPER_MAGIC; 200 buf->f_type = JFFS2_SUPER_MAGIC;