From 415b806de5576b656f3ff94366589af9a161d0c8 Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Mon, 27 Feb 2017 10:04:39 -0700 Subject: blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset Signed-off-by: Sagi Grimberg Modified by me to also check at driver tag allocation time if the original request was reserved, so we can be sure to allocate a properly reserved tag at that point in time, too. Signed-off-by: Jens Axboe --- block/blk-mq.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'block/blk-mq.c') diff --git a/block/blk-mq.c b/block/blk-mq.c index d84c66f..4df5fb4 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -852,6 +852,9 @@ done: return true; } + if (blk_mq_tag_is_reserved(data.hctx->sched_tags, rq->internal_tag)) + data.flags |= BLK_MQ_REQ_RESERVED; + rq->tag = blk_mq_get_tag(&data); if (rq->tag >= 0) { if (blk_mq_tag_busy(data.hctx)) { -- cgit v1.1