From c3a148d20affcc334348402865169a61000d3905 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Tue, 20 Jun 2017 11:15:43 -0700 Subject: blk-mq: Initialize .rq_flags in blk_mq_rq_ctx_init() Initialization of blk-mq requests is a bit weird: blk_mq_rq_ctx_init() is called after a value has been assigned to .rq_flags and .rq_flags is initialized in __blk_mq_finish_request(). Initialize .rq_flags in blk_mq_rq_ctx_init() instead of relying on __blk_mq_finish_request(). Moving the initialization of .rq_flags is fine because all changes and tests of .rq_flags occur between blk_get_request() and finishing a request. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Omar Sandoval Cc: Ming Lei Signed-off-by: Jens Axboe --- block/blk-mq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'block') diff --git a/block/blk-mq.c b/block/blk-mq.c index 2d21fbccc3a5..6268380c680f 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -228,6 +228,8 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data, struct blk_mq_tags *tags = blk_mq_tags_from_data(data); struct request *rq = tags->static_rqs[tag]; + rq->rq_flags = 0; + if (data->flags & BLK_MQ_REQ_INTERNAL) { rq->tag = -1; rq->internal_tag = tag; @@ -423,7 +425,6 @@ void blk_mq_free_request(struct request *rq) atomic_dec(&hctx->nr_active); wbt_done(q->rq_wb, &rq->issue_stat); - rq->rq_flags = 0; clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags); clear_bit(REQ_ATOM_POLL_SLEPT, &rq->atomic_flags); -- cgit v1.2.3