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Ip=[63.163.107.225]; Helo=[milsmgep14.sandisk.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0401MB1776 X-Greylist: Delayed for 00:15:00 by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 09 Aug 2017 18:44:17 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 09 Aug 2017 18:44:17 +0000 (UTC) for IP:'68.232.141.245' DOMAIN:'esa1.hgst.iphmx.com' HELO:'esa1.hgst.iphmx.com' FROM:'Bart.VanAssche@wdc.com' RCPT:'' X-RedHat-Spam-Score: -0.8 (DCC_REPUT_13_19, DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_LOW) 68.232.141.245 esa1.hgst.iphmx.com 68.232.141.245 esa1.hgst.iphmx.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.25 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: dm-devel@redhat.com X-Mailman-Approved-At: Wed, 09 Aug 2017 14:50:42 -0400 Cc: Laurence Oberman , Mike Snitzer , stable@vger.kernel.org, linux-block@vger.kernel.org, dm-devel@redhat.com, Bart Van Assche , Christoph Hellwig Subject: [dm-devel] [PATCH] block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Wed, 09 Aug 2017 18:50:56 +0000 (UTC) X-Virus-Scanned: ClamAV using ClamSMTP The blk_mq_delay_kick_requeue_list() function is used by the device mapper and only by the device mapper to rerun the queue and requeue list after a delay. This function is called once per request that gets requeued. Modify this function such that the queue is run once per path change event instead of once per request that is requeued. Fixes: commit 2849450ad39d ("blk-mq: introduce blk_mq_delay_kick_requeue_list()") Signed-off-by: Bart Van Assche Cc: Mike Snitzer Cc: Laurence Oberman Cc: --- block/blk-mq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index 041f7b7fa0d6..8bfea36e92f9 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -679,8 +679,8 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list); void blk_mq_delay_kick_requeue_list(struct request_queue *q, unsigned long msecs) { - kblockd_schedule_delayed_work(&q->requeue_work, - msecs_to_jiffies(msecs)); + kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work, + msecs_to_jiffies(msecs)); } EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);