linux-kernel - [PATCH 7/7] block: all blk-mq requests are tagged

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Message-Id: <1397464212-4454-8-git-send-email-hch@lst.de>
Date:	Mon, 14 Apr 2014 10:30:12 +0200
From:	Christoph Hellwig <hch@....de>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Matias Bjorling <m@...rling.me>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: [PATCH 7/7] block: all blk-mq requests are tagged

Instead of setting the REQ_QUEUED flag on each of them just take it into
account in the only macro checking it.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 include/linux/blkdev.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 99617cf..7c0e72f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1102,7 +1102,8 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
 /*
  * tag stuff
  */
-#define blk_rq_tagged(rq)		((rq)->cmd_flags & REQ_QUEUED)
+#define blk_rq_tagged(rq) \
+	((rq)->mq_ctx || ((rq)->cmd_flags & REQ_QUEUED))
 extern int blk_queue_start_tag(struct request_queue *, struct request *);
 extern struct request *blk_queue_find_tag(struct request_queue *, int);
 extern void blk_queue_end_tag(struct request_queue *, struct request *);
-- 
1.7.10.4

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