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Message-Id: <1437047602-19786-1-git-send-email-ming.lei@canonical.com>
Date: Thu, 16 Jul 2015 19:53:22 +0800
From: Ming Lei <ming.lei@...onical.com>
To: Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org
Cc: Ming Lei <ming.lei@...onical.com>
Subject: [PATCH] blk-mq: set default timeout as 30 seconds
It is reasonable to set default timeout of request as
30 seconds instead of 30000 ticks, which may be 300 seconds
if HZ is 100, for example, some arm64 based systems may choose
100 HZ.
Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
block/blk-mq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f537796..7d842db 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1998,7 +1998,7 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
goto err_hctxs;
setup_timer(&q->timeout, blk_mq_rq_timer, (unsigned long) q);
- blk_queue_rq_timeout(q, set->timeout ? set->timeout : 30000);
+ blk_queue_rq_timeout(q, set->timeout ? set->timeout : 30 * HZ);
q->nr_queues = nr_cpu_ids;
q->nr_hw_queues = set->nr_hw_queues;
--
1.9.1
--
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