memory: set ioeventfd_update_pending after address_space_update_ioeventfds

We should set ioeventfd_update_pending same as memory_region_update_pending.
Signed-off-by: Nlinzhecheng <linzc@zju.edu.cn>
Message-Id: <1515934519-16158-1-git-send-email-linzc@zju.edu.cn>
Cc: qemu-stable@nongnu.org
Fixes: ade9c1aaSigned-off-by: NPaolo Bonzini <pbonzini@redhat.com>

memory.c

@@ -1091,6 +1091,7 @@ void memory_region_transaction_commit(void)
                 address_space_update_ioeventfds(as);
             }
             memory_region_update_pending = false;
+            ioeventfd_update_pending = false;
             MEMORY_LISTENER_CALL_GLOBAL(commit, Forward);
         } else if (ioeventfd_update_pending) {
             QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {