rbd.py: increase parent name size limit

64 characters isn't all that long. 4096 ought to be enough for anyone.

Fixes: #6072
Backport: dumpling, cuttlefish
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
(cherry picked from commit 3c0042cde5a12de0f554a16b227ab437c6254ddd)

Conflicts:

	src/pybind/rbd.py

diff --git a/src/pybind/rbd.py b/src/pybind/rbd.py
index 3683f03c53cf2f513a644666e4fdb318641cf98a..5c2e28ba3f076d782af698e597e8fdf6a2bafe3f 100644 (file)
--- a/src/pybind/rbd.py
+++ b/src/pybind/rbd.py
@@ -432,7 +432,7 @@ class Image(object):
     def parent_info(self):
         ret = -errno.ERANGE
         size = 8;
-        while ret == -errno.ERANGE and size < 128:
+        while ret == -errno.ERANGE and size <= 4096:
             pool = create_string_buffer(size)
             name = create_string_buffer(size)
             snapname = create_string_buffer(size)