mgr/volumes: fix subvolume creation with quota

A quota is set on a subvolume by setting a quota virtual
xattr on a fs subdirectory. The value of the quota xattr
should be a bytes object. The quota value wasn't correctly
converted to a bytes object. Fix this.

Fixes: http://tracker.ceph.com/issues/40152
Signed-off-by: Ramana Raja <rraja@redhat.com>
(cherry picked from commit 695c9e4dc83e77d13e9fad057d77994594fdd226)

diff --git a/src/pybind/mgr/volumes/fs/subvolume.py b/src/pybind/mgr/volumes/fs/subvolume.py
index 40122dcf43f13df970e27e2dd379492c8c2d93d9..9e476c7a7c86b49c3bab0d3fdbc8917fcf16f127 100644 (file)
--- a/src/pybind/mgr/volumes/fs/subvolume.py
+++ b/src/pybind/mgr/volumes/fs/subvolume.py
@@ -159,7 +159,7 @@ class SubvolumeClient(object):
         self._mkdir_p(path, mode)
 
         if size is not None:
-            self.fs.setxattr(path, 'ceph.quota.max_bytes', size.encode('utf-8'), 0)
+            self.fs.setxattr(path, 'ceph.quota.max_bytes', str(size).encode('utf-8'), 0)
 
         # enforce security isolation, use separate namespace for this subvolume
         if namespace_isolated: