From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out4-smtp.messagingengine.com ([66.111.4.28]:40715 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752095AbdHNAdk (ORCPT ); Sun, 13 Aug 2017 20:33:40 -0400 Subject: FAILED: patch "[PATCH] block: Make blk_mq_delay_kick_requeue_list() rerun the queue" failed to apply to 4.9-stable tree To: bart.vanassche@wdc.com, axboe@kernel.dk, loberman@redhat.com, snitzer@redhat.com, stable@vger.kernel.org Cc: From: Date: Sun, 13 Aug 2017 15:15:47 -0700 Message-ID: <150266254711377@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >>From d4acf3650c7c968f46ad932b9a25d1cc24cf4998 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Wed, 9 Aug 2017 11:28:06 -0700 Subject: [PATCH] block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time 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: Signed-off-by: Jens Axboe diff --git a/block/blk-mq.c b/block/blk-mq.c index 211ef367345f..535cbdf32aab 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -684,8 +684,8 @@ 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);