From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3048BC3A5A2 for ; Sun, 22 Sep 2019 19:00:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02B79208C2 for ; Sun, 22 Sep 2019 19:00:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569178808; bh=FUo7+AM5G1HtGd+uzgYEtJ+YHg9f4YGf1zd1fEXlen0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LziqF2JtFa23uewZHQ+oATQSSRu6jvfcSAmy5tVm7yNMp5RuEn2j+2k6OWVSmGm3g RYVAy2CLeFIA6I6q+eF4FaBcvUzQf/vxJVIrNHZ4V0d28eIn3A3/Kd9sxSIE8Nbydf Yi792YsIvtRqWCI0MA6+0G7BXP58nZcavJsb+nQs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438945AbfIVTAH (ORCPT ); Sun, 22 Sep 2019 15:00:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:35462 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2408294AbfIVTAB (ORCPT ); Sun, 22 Sep 2019 15:00:01 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 05B4C21479; Sun, 22 Sep 2019 18:59:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569178800; bh=FUo7+AM5G1HtGd+uzgYEtJ+YHg9f4YGf1zd1fEXlen0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QPTSfR59WOMUcLOR8ecVx0voJIlw8cZyqosib+omYzoR+B3ES2UhDO2AauDwASRFA l6wGc3K36/qnTQmwebijeYxpOTxkIVjZmkbyAHf2rw3btwle1mWbyEqhclq9Ahoo0w aihWkpz1FomT6YNDxyWMglKUMjlgukJFD0mpg5Ls= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Guoqing Jiang , Guoqing Jiang , Song Liu , Sasha Levin , linux-raid@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 20/60] md: don't call spare_active in md_reap_sync_thread if all member devices can't work Date: Sun, 22 Sep 2019 14:58:53 -0400 Message-Id: <20190922185934.4305-20-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190922185934.4305-1-sashal@kernel.org> References: <20190922185934.4305-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Guoqing Jiang [ Upstream commit 0d8ed0e9bf9643f27f4816dca61081784dedb38d ] When add one disk to array, the md_reap_sync_thread is responsible to activate the spare and set In_sync flag for the new member in spare_active(). But if raid1 has one member disk A, and disk B is added to the array. Then we offline A before all the datas are synchronized from A to B, obviously B doesn't have the latest data as A, but B is still marked with In_sync flag. So let's not call spare_active under the condition, otherwise B is still showed with 'U' state which is not correct. Signed-off-by: Guoqing Jiang Signed-off-by: Song Liu Signed-off-by: Sasha Levin --- drivers/md/md.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 765a16dab2e5f..c1c514792457a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8573,7 +8573,8 @@ void md_reap_sync_thread(struct mddev *mddev) /* resync has finished, collect result */ md_unregister_thread(&mddev->sync_thread); if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) && - !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { + !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) && + mddev->degraded != mddev->raid_disks) { /* success...*/ /* activate any spares */ if (mddev->pers->spare_active(mddev)) { -- 2.20.1