md: don't destroy serial_info_pool if serialize_policy is true (4d26d32f) · Commits · 戴 / test

The serial_info_pool is needed if array sets serialize_policy to true, so don't destroy it. Signed-off-by:

drivers/md/md-bitmap.c

+8 −4

Original line number	Diff line number	Diff line
		@@ -1789,8 +1789,10 @@ void md_bitmap_destroy(struct mddev *mddev)
		return;

		md_bitmap_wait_behind_writes(mddev);
		if (!mddev->serialize_policy) {
		mempool_destroy(mddev->serial_info_pool);
		mddev->serial_info_pool = NULL;
		}

		mutex_lock(&mddev->bitmap_info.mutex);
		spin_lock(&mddev->lock);
		@@ -2476,8 +2478,10 @@ backlog_store(struct mddev mddev, const char buf, size_t len)
		mddev->bitmap_info.max_write_behind = backlog;
		if (!backlog && mddev->serial_info_pool) {
		/* serial_info_pool is not needed if backlog is zero */
		if (!mddev->serialize_policy) {
		mempool_destroy(mddev->serial_info_pool);
		mddev->serial_info_pool = NULL;
		}
		} else if (backlog && !mddev->serial_info_pool) {
		/* serial_info_pool is needed since backlog is not zero */
		struct md_rdev *rdev;