From patchwork Mon Oct 2 22:52:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 9981295 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 23CB160384 for ; Mon, 2 Oct 2017 22:52:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 179BF285EF for ; Mon, 2 Oct 2017 22:52:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0C076289A0; Mon, 2 Oct 2017 22:52:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD69C285EF for ; Mon, 2 Oct 2017 22:52:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751819AbdJBWwV (ORCPT ); Mon, 2 Oct 2017 18:52:21 -0400 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:36638 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751702AbdJBWwU (ORCPT ); Mon, 2 Oct 2017 18:52:20 -0400 X-IronPort-AV: E=Sophos;i="5.42,471,1500912000"; d="scan'208";a="55892365" Received: from sjappemgw11.hgst.com (HELO sjappemgw12.hgst.com) ([199.255.44.62]) by ob1.hgst.iphmx.com with ESMTP; 03 Oct 2017 06:52:20 +0800 Received: from thinkpad-bart.sdcorp.global.sandisk.com (HELO thinkpad-bart.int.fusionio.com) ([10.11.172.152]) by sjappemgw12.hgst.com with ESMTP; 02 Oct 2017 15:52:19 -0700 From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, Christoph Hellwig , "Martin K . Petersen" , =Oleksandr Natalenko , "Luis R . Rodriguez" , Bart Van Assche , Shaohua Li , linux-raid@vger.kernel.org, Ming Lei , Hannes Reinecke , Johannes Thumshirn Subject: [PATCH v5 1/8] md: Introduce md_stop_all_writes() Date: Mon, 2 Oct 2017 15:52:11 -0700 Message-Id: <20171002225218.18548-2-bart.vanassche@wdc.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171002225218.18548-1-bart.vanassche@wdc.com> References: <20171002225218.18548-1-bart.vanassche@wdc.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce md_stop_all_writes() because the next patch will add a second caller for this function. Rename md_notifier into md_reboot_notifier to avoid that the name of this notifier will become confusing due to the next patch. This patch does not change any functionality. Signed-off-by: Bart Van Assche Cc: Shaohua Li Cc: linux-raid@vger.kernel.org Cc: Ming Lei Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Johannes Thumshirn Reviewed-by: Luis R. Rodriguez --- drivers/md/md.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 0ff1bbf6c90e..3f7426120a3b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8935,8 +8935,7 @@ int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors, } EXPORT_SYMBOL_GPL(rdev_clear_badblocks); -static int md_notify_reboot(struct notifier_block *this, - unsigned long code, void *x) +static void md_stop_all_writes(void) { struct list_head *tmp; struct mddev *mddev; @@ -8960,11 +8959,17 @@ static int md_notify_reboot(struct notifier_block *this, */ if (need_delay) mdelay(1000*1); +} + +static int md_notify_reboot(struct notifier_block *this, + unsigned long code, void *x) +{ + md_stop_all_writes(); return NOTIFY_DONE; } -static struct notifier_block md_notifier = { +static struct notifier_block md_reboot_notifier = { .notifier_call = md_notify_reboot, .next = NULL, .priority = INT_MAX, /* before any real devices */ @@ -9001,7 +9006,7 @@ static int __init md_init(void) blk_register_region(MKDEV(mdp_major, 0), 1UL<