From: Shaohua Li <shli@xxxxxx>
md-cluster receive thread calls .quiesce too, let it hold mddev lock.
Cc: NeilBrown <neilb@xxxxxxxx>
Cc: Guoqing Jiang <gqjiang@xxxxxxxx>
Signed-off-by: Shaohua Li <shli@xxxxxx>
---
drivers/md/md-cluster.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 41573f1..f420060 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -567,11 +567,13 @@ static void recv_daemon(struct md_thread *thread)
struct cluster_msg msg;
int ret;
+ mddev_lock_nointr(thread->mddev);
mutex_lock(&cinfo->recv_mutex);
/*get CR on Message*/
if (dlm_lock_sync(message_lockres, DLM_LOCK_CR)) {
pr_err("md/raid1:failed to get CR on MESSAGE\n");
mutex_unlock(&cinfo->recv_mutex);
+ mddev_unlock(thread->mddev);
return;
}
@@ -599,6 +601,7 @@ static void recv_daemon(struct md_thread *thread)
if (unlikely(ret != 0))
pr_info("unlock msg failed return %d\n", ret);
mutex_unlock(&cinfo->recv_mutex);
+ mddev_unlock(thread->mddev);
}
/* lock_token()
--
2.7.4
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