ceph: no .snap inside of snapped namespace
Otherwise you can do things like
# mkdir .snap/foo
# cd .snap/foo/.snap
# ls
<badness>
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 196fd4c..099a586 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -496,6 +496,7 @@
/* .snap dir? */
if (err == -ENOENT &&
+ ceph_snap(parent) == CEPH_NOSNAP &&
strcmp(dentry->d_name.name,
fsc->mount_options->snapdir_name) == 0) {
struct inode *inode = ceph_get_snapdir(parent);