From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933113AbdC1NsV (ORCPT ); Tue, 28 Mar 2017 09:48:21 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:59020 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752989AbdC1MeU (ORCPT ); Tue, 28 Mar 2017 08:34:20 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tomasz Majchrzak , Artur Paszkiewicz , Shaohua Li Subject: [PATCH 4.4 49/76] raid10: increment write counter after bio is split Date: Tue, 28 Mar 2017 14:30:46 +0200 Message-Id: <20170328122601.944085239@linuxfoundation.org> X-Mailer: git-send-email 2.12.1 In-Reply-To: <20170328122559.966310440@linuxfoundation.org> References: <20170328122559.966310440@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tomasz Majchrzak commit 9b622e2bbcf049c82e2550d35fb54ac205965f50 upstream. md pending write counter must be incremented after bio is split, otherwise it gets decremented too many times in end bio callback and becomes negative. Signed-off-by: Tomasz Majchrzak Reviewed-by: Artur Paszkiewicz Signed-off-by: Shaohua Li Signed-off-by: Greg Kroah-Hartman --- drivers/md/raid10.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1072,6 +1072,8 @@ static void __make_request(struct mddev int max_sectors; int sectors; + md_write_start(mddev, bio); + /* * Register the new request and wait if the reconstruction * thread has put up a bar for new requests. @@ -1455,8 +1457,6 @@ static void make_request(struct mddev *m return; } - md_write_start(mddev, bio); - do { /*