From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>, Keith Busch <keith.busch@intel.com>
Cc: Bart Van Assche <bart.vanassche@wdc.com>,
Ming Lei <ming.lei@redhat.com>,
Josef Bacik <josef@toxicpanda.com>, Tejun Heo <tj@kernel.org>,
Lee Duncan <lduncan@suse.com>, Chris Leech <cleech@redhat.com>,
linux-block@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: [PATCH 08/14] null_blk: complete requests from ->timeout
Date: Tue, 29 May 2018 15:52:33 +0200 [thread overview]
Message-ID: <20180529135239.27005-9-hch@lst.de> (raw)
In-Reply-To: <20180529135239.27005-1-hch@lst.de>
By completing the request entirely in the driver we can remove the
BLK_EH_HANDLED return value and thus the split responsibility between the
driver and the block layer that has been causing trouble.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/block/null_blk.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index b4d368e3ddcd..2bdadd7f1454 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -1365,7 +1365,8 @@ static blk_qc_t null_queue_bio(struct request_queue *q, struct bio *bio)
static enum blk_eh_timer_return null_rq_timed_out_fn(struct request *rq)
{
pr_info("null: rq %p timed out\n", rq);
- return BLK_EH_HANDLED;
+ blk_mq_complete_request(rq);
+ return BLK_EH_DONE;
}
static int null_rq_prep_fn(struct request_queue *q, struct request *req)
@@ -1427,7 +1428,8 @@ static void null_request_fn(struct request_queue *q)
static enum blk_eh_timer_return null_timeout_rq(struct request *rq, bool res)
{
pr_info("null: rq %p timed out\n", rq);
- return BLK_EH_HANDLED;
+ blk_mq_complete_request(rq);
+ return BLK_EH_DONE;
}
static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
--
2.17.0
next prev parent reply other threads:[~2018-05-29 13:52 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-29 13:52 drop abort sequence, kill BLK_EH_HANDLED v2 Christoph Hellwig
2018-05-29 13:52 ` [PATCH 01/14] libata: remove ata_scsi_timed_out Christoph Hellwig
2018-05-29 13:52 ` [PATCH 02/14] blk-mq: Fix timeout and state order Christoph Hellwig
2018-05-29 13:52 ` [PATCH 03/14] blk-mq: Remove generation seqeunce Christoph Hellwig
2018-06-04 6:56 ` Bart Van Assche
2018-06-04 13:42 ` hch
2018-06-04 14:13 ` Bart Van Assche
2018-05-29 13:52 ` [PATCH 04/14] block: rename BLK_EH_NOT_HANDLED to BLK_EH_DONE Christoph Hellwig
2018-05-29 13:52 ` [PATCH 05/14] nvme: return BLK_EH_DONE from ->timeout Christoph Hellwig
2018-05-29 13:52 ` [PATCH 06/14] nbd: complete requests " Christoph Hellwig
2018-05-29 13:52 ` [PATCH 07/14] mtip32xx: " Christoph Hellwig
2018-05-29 14:17 ` Johannes Thumshirn
2018-05-29 13:52 ` Christoph Hellwig [this message]
2018-05-29 13:52 ` [PATCH 09/14] scsi_transport_fc: " Christoph Hellwig
2018-05-29 13:52 ` [PATCH 10/14] mmc: " Christoph Hellwig
2018-05-29 14:55 ` Shawn Lin
2018-05-30 8:09 ` Adrian Hunter
2018-05-29 13:52 ` [PATCH 11/14] libiscsi: don't try to bypass SCSI EH Christoph Hellwig
2018-05-30 1:04 ` Lee Duncan
2018-05-29 13:52 ` [PATCH 12/14] block: remove BLK_EH_HANDLED Christoph Hellwig
2018-05-29 14:17 ` Johannes Thumshirn
2018-05-29 13:52 ` [PATCH 13/14] block: document the blk_eh_timer_return values Christoph Hellwig
2018-05-29 14:17 ` Johannes Thumshirn
2018-05-29 13:52 ` [PATCH 14/14] blk-mq: simplify blk_mq_rq_timed_out Christoph Hellwig
2018-05-29 14:19 ` Johannes Thumshirn
2018-05-29 15:12 ` drop abort sequence, kill BLK_EH_HANDLED v2 Jens Axboe
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