From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out3-smtp.messagingengine.com ([66.111.4.27]:59518 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752978AbbIZRKn (ORCPT ); Sat, 26 Sep 2015 13:10:43 -0400 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 176F22031E for ; Sat, 26 Sep 2015 13:10:43 -0400 (EDT) Subject: FAILED: patch "[PATCH] md: flush ->event_work before stopping array." failed to apply to 3.14-stable tree To: neilb@suse.com, heinzm@redhat.com Cc: From: Date: Sat, 26 Sep 2015 10:10:41 -0700 Message-ID: <14432874412156@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 3.14-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 ee5d004fd0591536a061451eba2b187092e9127c Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 22 Jul 2015 10:20:07 +1000 Subject: [PATCH] md: flush ->event_work before stopping array. The 'event_work' worker used by dm-raid may still be running when the array is stopped. This can result in an oops. So flush the workqueue on which it is run after detaching and before destroying the device. Reported-by: Heinz Mauelshagen Signed-off-by: NeilBrown Cc: stable@vger.kernel.org (2.6.38+ please delay 2 weeks after -final release) Fixes: 9d09e663d550 ("dm: raid456 basic support") diff --git a/drivers/md/md.c b/drivers/md/md.c index df92d30ca054..5025b3ec13cd 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5382,6 +5382,8 @@ static void __md_stop(struct mddev *mddev) { struct md_personality *pers = mddev->pers; mddev_detach(mddev); + /* Ensure ->event_work is done */ + flush_workqueue(md_misc_wq); spin_lock(&mddev->lock); mddev->ready = 0; mddev->pers = NULL;