ceph: allow xlock state to be LOCK_PREXLOCK when putting it

When the journal logs are successfully flushed the lockers' state
could be LOCK_PREXLOCK if the inflight OP need to gather issued
caps.

Fixes: https://tracker.ceph.com/issues/44565
Signed-off-by: Xiubo Li <xiubli@redhat.com>
(cherry picked from commit 81890e8a57341b3a14db310ae1700394ecdbbad4)

diff --git a/src/mds/SimpleLock.h b/src/mds/SimpleLock.h
index 725c4488c17f0a8fb7eafb965decc36da7bf999c..ef41c4088557127667f863976ac2bcef34b883ee 100644 (file)
--- a/src/mds/SimpleLock.h
+++ b/src/mds/SimpleLock.h
@@ -417,6 +417,7 @@ public:
     ceph_assert(state == LOCK_XLOCK || state == LOCK_XLOCKDONE ||
           state == LOCK_XLOCKSNAP || state == LOCK_LOCK_XLOCK ||
           state == LOCK_LOCK  || /* if we are a leader of a peer */
+          state == LOCK_PREXLOCK ||
           is_locallock());
     --more()->num_xlock;
     parent->put(MDSCacheObject::PIN_LOCK);