From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (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 75C0829C34E; Fri, 18 Jul 2025 09:29:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752830997; cv=none; b=ETJTPNxhvSB09wCMHOmHTfKUrnDy2htjgtWG/SU+75XF17QMV7C2ktIA7HeoLIODeSRH/Gj4gZA5sSo4WO75kBf5jQqzSnuP0PqOgK1Jlt7nSTg6ZlS0P+0DyHT6ICULxkx3D1F8YCRLgYbK1NlhLRgOPYZX1q4rc6bNHsR+rH4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752830997; c=relaxed/simple; bh=sjv+kTnbEL8qkD5h2jOhMqJOR9ao5igbnbvEWz9lvd4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Cj3pEV6JLNsj7SO6MuQUUXhmPnWLOIllaPJSRmTFqPxZGx25RwJpgf1gcIA5DclL9/nx3vz9YD42RGrd+5pfSMla8rbOLLunVt0TdRqnenrJqfPub+/9klooMPJ5BSOpHWZq674Z/2pS02scS7rA4rF3276/qzZw3KKsxPLiOPk= 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=45.249.212.51 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 [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTPS id 4bk4JF0dqNzYQvMg; Fri, 18 Jul 2025 17:29:49 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id CF2C41A0194; Fri, 18 Jul 2025 17:29:47 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgDXUxQGFHpoDl6qAg--.5172S6; Fri, 18 Jul 2025 17:29:47 +0800 (CST) From: Yu Kuai To: corbet@lwn.net, agk@redhat.com, snitzer@kernel.org, mpatocka@redhat.com, song@kernel.org, yukuai3@huawei.com, hare@suse.de Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: [PATCH v3 02/11] md: factor out a helper raid_is_456() Date: Fri, 18 Jul 2025 17:23:27 +0800 Message-Id: <20250718092336.3346644-3-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250718092336.3346644-1-yukuai1@huaweicloud.com> References: <20250718092336.3346644-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:gCh0CgDXUxQGFHpoDl6qAg--.5172S6 X-Coremail-Antispam: 1UD129KBjvJXoW7Kr47Kr4xtr4fZw1xAFWDArb_yoW8WFWkpa 1fJFyfArWUZFW3tw4DXFykua4Fgw13trWqyrWxu3yrXF15JryDKF1SqFZFvryDWayfZFsI q3WjyF4ku3W09w7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUm014x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2 xKxwCY1x0262kKe7AKxVWUtVW8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWU JVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67 kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY 6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0x vEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVj vjDU0xZFpf9x0JUQXo7UUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai There are no functional changes, the helper will be used by llbitmap in following patches. Signed-off-by: Yu Kuai Reviewed-by: Xiao Ni Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke --- drivers/md/md.c | 9 +-------- drivers/md/md.h | 6 ++++++ 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 1a19a9c2b50d..a70d8536075c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -9047,19 +9047,12 @@ static sector_t md_sync_position(struct mddev *mddev, enum sync_action action) static bool sync_io_within_limit(struct mddev *mddev) { - int io_sectors; - /* * For raid456, sync IO is stripe(4k) per IO, for other levels, it's * RESYNC_PAGES(64k) per IO. */ - if (mddev->level == 4 || mddev->level == 5 || mddev->level == 6) - io_sectors = 8; - else - io_sectors = 128; - return atomic_read(&mddev->recovery_active) < - io_sectors * sync_io_depth(mddev); + (raid_is_456(mddev) ? 8 : 128) * sync_io_depth(mddev); } #define SYNC_MARKS 10 diff --git a/drivers/md/md.h b/drivers/md/md.h index f9fdcc5eea22..ae8e7a9c5cc4 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -1011,6 +1011,12 @@ static inline bool mddev_is_dm(struct mddev *mddev) return !mddev->gendisk; } +static inline bool raid_is_456(struct mddev *mddev) +{ + return mddev->level == ID_RAID4 || mddev->level == ID_RAID5 || + mddev->level == ID_RAID6; +} + static inline void mddev_trace_remap(struct mddev *mddev, struct bio *bio, sector_t sector) { -- 2.39.2