[PATCH] fuse: use dentry in statfs

Some filesystems may want to report different values depending on the path
within the filesystem, i.e.  one mount is actually several filesystems.  This
can be the case for a network filesystem exported by an unprivileged server
(e.g.  sshfs).

This is now possible, thanks to David Howells "VFS: Permit filesystem to
perform statfs with a known root dentry" patch.

This change is backward compatible, so no need to change interface version.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index cb7cadb0b7901906e2dfd47bd5f3aac3b3578fb7..7d0a9aee01f248ef70bb1796a013fca8dda571af 100644 (file)
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -251,6 +251,7 @@ static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf)
        memset(&outarg, 0, sizeof(outarg));
        req->in.numargs = 0;
        req->in.h.opcode = FUSE_STATFS;
+       req->in.h.nodeid = get_node_id(dentry->d_inode);
        req->out.numargs = 1;
        req->out.args[0].size =
                fc->minor < 4 ? FUSE_COMPAT_STATFS_SIZE : sizeof(outarg);