[PATCH v5 8/9] blk-mq: Insert a blk_pm_put_request() call

Bart Van Assche
2018-08-07T22:51:32Z

Call blk_pm_put_request() after a request has finished.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Jianchao Wang <jianchao.w.wang@oracle.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
---
block/blk-mq.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 434515018c43..6fb91b2b001c 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -37,6 +37,7 @@
#include "blk-pm.h"
#include "blk-stat.h"
#include "blk-mq-sched.h"
+#include "blk-pm.h"
#include "blk-rq-qos.h"

static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie);
@@ -478,6 +479,8 @@ static void __blk_mq_free_request(struct request *rq)
struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
const int sched_tag = rq->internal_tag;

+ blk_pm_put_request(rq);
+
if (rq->tag != -1)
blk_mq_put_tag(hctx, hctx->tags, ctx, rq->tag);
if (sched_tag != -1)
--
2.18.0