VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Zhang Yi <yi.zhang@huawei.com> 2021-06-19 17:37:00 +0800 committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-07-14 17:06:52 +0200 commit: 30d5c741d111d66391be6ec79a09d590fd18af88 parent: 1c0d0e179994ccc7741433b58f2a2a828d1c45d2
Commit Summary:
blk-wbt: make sure throttle is enabled properly
Diffstat:
1 file changed, 5 insertions, 1 deletion
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index b098ac6a84f0..f5e5ac915bf7 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -637,9 +637,13 @@ void wbt_set_write_cache(struct request_queue *q, bool write_cache_on)
 void wbt_enable_default(struct request_queue *q)
 {
 	struct rq_qos *rqos = wbt_rq_qos(q);
+
 	/* Throttling already enabled? */
-	if (rqos)
+	if (rqos) {
+		if (RQWB(rqos)->enable_state == WBT_STATE_OFF_DEFAULT)
+			RQWB(rqos)->enable_state = WBT_STATE_ON_DEFAULT;
 		return;
+	}
 
 	/* Queue not registered? Maybe shutting down... */
 	if (!blk_queue_registered(q))