Commit 9a91b05b authored by Hou Tao's avatar Hou Tao Committed by Jens Axboe
Browse files

block: also check RQF_STATS in blk_mq_need_time_stamp()



In __blk_mq_end_request() if block stats needs update, we should
ensure now is valid instead of 0 even when iostat is disabled.

Signed-off-by: default avatarHou Tao <houtao1@huawei.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 3d244306
......@@ -282,12 +282,12 @@ bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
EXPORT_SYMBOL(blk_mq_can_queue);
/*
* Only need start/end time stamping if we have stats enabled, or using
* an IO scheduler.
* Only need start/end time stamping if we have iostat or
* blk stats enabled, or using an IO scheduler.
*/
static inline bool blk_mq_need_time_stamp(struct request *rq)
{
return (rq->rq_flags & RQF_IO_STAT) || rq->q->elevator;
return (rq->rq_flags & (RQF_IO_STAT | RQF_STATS)) || rq->q->elevator;
}
static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
......
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