ceph/ceph — pull request #1840 by yuyuyu101 (2014-05-20 06:40:28+00:00)
Title: Fix set_alloc_hint op cause KeyValueStore crash problem

Now KeyValueStore doesn't support set_alloc_hit op, the implementation of
_do_transaction need to consider decoding the arguments. Otherwise, the
arguments will be regarded as the next op.

Fix the same problem for MemStore.

Fix #8381

Reported-by: Xinxin Shu
Signed-off-by: Haomai Wang