From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2857E35CB67; Thu, 5 Feb 2026 07:29:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770276595; cv=none; b=FOlMqyZHWP4QFtGLLSX6e6kUWbqulek3m9cIUC4EQmyudzreY+4v38lT+A6qz7mFCo7dw5Xfo/QJfQia9HhUwpEQxgHT0NT/vA/omyFqb3nu2s1p0rA7Npuzp/xybf1a1Wqh5nL4oJr+oEETPQAgX5CP5QcD+2LXtK3MvlZy2b4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770276595; c=relaxed/simple; bh=Zoife+9d2UG3d+FPrIhoXm1rOMPrGRy6CzD5VXTU9Uc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HTwefKi0OX3nAgSFsY6UK7/iFz0cwBAHFo0vXimPiw80J4N3WDVuqevUbi7VYKJZzjNFQ5fW/KzEnKRcGynFgLRciOJMUrVzsO8eSlMP8bnJVM6XPoq8X+BpsEvLDAp+1t83DlvlKGKDI6gSLNBxDKnPy3YhW6/rsncAf488V6k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.170]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4f68464qBfzKHM0J; Thu, 5 Feb 2026 15:29:26 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 255014056E; Thu, 5 Feb 2026 15:29:51 +0800 (CST) Received: from [10.174.178.129] (unknown [10.174.178.129]) by APP4 (Coremail) with SMTP id gCh0CgAHZ_fuRoRpPupPGQ--.56823S3; Thu, 05 Feb 2026 15:29:50 +0800 (CST) Message-ID: <23035df1-d550-ee86-337c-e43847712e3c@huaweicloud.com> Date: Thu, 5 Feb 2026 15:29:50 +0800 Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [PATCH v2 14/14] md/raid1,raid10: fall back to smaller order if sync folio alloc fails To: yukuai@fnnas.com, linan666@huaweicloud.com, song@kernel.org Cc: xni@redhat.com, linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, yangerkun@huawei.com, yi.zhang@huawei.com References: <20260128075708.2259525-1-linan666@huaweicloud.com> <20260128075708.2259525-15-linan666@huaweicloud.com> <887aa7a7-0b74-4b92-a053-0f019bac7d85@fnnas.com> From: Li Nan In-Reply-To: <887aa7a7-0b74-4b92-a053-0f019bac7d85@fnnas.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CM-TRANSID:gCh0CgAHZ_fuRoRpPupPGQ--.56823S3 X-Coremail-Antispam: 1UD129KBjvdXoW7Jw1rXry5Ww1fAr4rAFyxZrb_yoWfArc_Cw 10vFZ3Jr1UJFyIva45tr1fZr92kF4UZr1UAFyjqrW5Xa4rZF1kCr1DKrZxJw4UJFW8Crn8 Ar1ktry8Aw42vjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbf8FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAac4AC62xK8xCEY4vEwIxC4wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC 0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr0_Gr 1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcVAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIF xwCYjI0SjxkI62AI1cAE67vIY487MxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI4 8JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xv wVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjx v20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20E Y4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267 AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbq-e5UUUUU== X-CM-SenderInfo: polqt0awwwqx5xdzvxpfor3voofrz/ 在 2026/2/5 0:48, Yu Kuai 写道: > Hi, > > 在 2026/1/28 15:57, linan666@huaweicloud.com 写道: >> From: Li Nan >> >> RESYNC_BLOCK_SIZE (64K) has higher allocation failure chance than 4k, >> so retry with lower orders to improve allocation reliability. >> >> A r1/10_bio may have different rf->folio orders. Use minimum order as >> r1/10_bio sectors to prevent exceeding size when adding folio to IO later. >> >> Signed-off-by: Li Nan >> --- >> drivers/md/raid1-10.c | 14 +++++++++++--- >> drivers/md/raid1.c | 13 +++++++++---- >> drivers/md/raid10.c | 28 ++++++++++++++++++++++++++-- >> 3 files changed, 46 insertions(+), 9 deletions(-) > > Looks like this patch should be merged into patch 5, there is no need to introduce > that higher allocation failure and then fix it here. > OK, I will merge abouve patches. -- Thanks, Nan