From patchwork Wed Aug 14 07:10:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13762925 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 A982F13AA27; Wed, 14 Aug 2024 07:15:31 +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=1723619733; cv=none; b=BK6sLHX+QIaw4zqPOK6SRDROXkz1aLsGjHOf0JOiFMBT+B+3O1CXvVK3s9obsCTBiYd9laap1kn44eVOHvst8Wwld3F8vRtPqOUTgAnbK+6rAQum5+/JkBo0vHlHnuMMl7d0iPbZQCImfWLB6wxn3+My9nZGq1B+3ukd1E76T2Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723619733; c=relaxed/simple; bh=Of9GnqItEHq+L0T4tjM0slvjKwDloXOvnPmj+hEtqlM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mVHITfpGdiTQ5UGm0XvvGVsZHR/4I0gh06hY+/BWq2oPmsijUn35yKsJSMa2+lRCzmvIOtBfroQgUR28GnYLoBcu9DiJ7ixaFfyolKH1pcNIcDw4sA1eFctlUQN1QydNdzfNC3UbsyiFPNCUyfqdu4fyfZkWnFpw87ZoZ+zBDYg= 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 [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4WkKK30fBJz4f3jZ1; Wed, 14 Aug 2024 15:15:19 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 690801A018D; Wed, 14 Aug 2024 15:15:28 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgBHboSLWbxmIxKbBg--.47745S10; Wed, 14 Aug 2024 15:15:28 +0800 (CST) From: Yu Kuai To: mariusz.tkaczyk@linux.intel.com, hch@infradead.org, song@kernel.org Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, yukuai3@huawei.com, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH RFC -next v2 06/41] md/md-bitmap: add 'file_pages' into struct md_bitmap_stats Date: Wed, 14 Aug 2024 15:10:38 +0800 Message-Id: <20240814071113.346781-7-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240814071113.346781-1-yukuai1@huaweicloud.com> References: <20240814071113.346781-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: gCh0CgBHboSLWbxmIxKbBg--.47745S10 X-Coremail-Antispam: 1UD129KBjvJXoW7Kr47Kr4xtF15Jry8CrWktFb_yoW8KF45pa ykJa45urWrXr45Xw17XFyDuFyrX3ZxKFZrKF93C3y5uFyUAF9xWFWrGFWUJw1DCFW5AFsx Zrn8trWUur1j9w7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPj14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY1x0262kKe7AKxVWUtV W8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v2 6r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2 Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_ Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8Jw CI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUOyIUUUUU U X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai There are no functional changes, avoid dereferencing bitmap directly to prepare inventing a new bitmap. Signed-off-by: Yu Kuai --- drivers/md/md-bitmap.c | 1 + drivers/md/md-bitmap.h | 1 + drivers/md/md.c | 12 ++++++++---- 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 9ff5ed250ba5..cd304240aaa6 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -2109,6 +2109,7 @@ int md_bitmap_get_stats(struct bitmap *bitmap, struct md_bitmap_stats *stats) counts = &bitmap->counts; stats->pages = counts->pages; stats->missing_pages = counts->missing_pages; + stats->file_pages = bitmap->storage.file_pages; stats->file = bitmap->storage.file; stats->events_cleared = bitmap->events_cleared; diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h index 1a7ad2cf9f75..52ef4dae8f3e 100644 --- a/drivers/md/md-bitmap.h +++ b/drivers/md/md-bitmap.h @@ -237,6 +237,7 @@ struct bitmap { struct md_bitmap_stats { unsigned long pages; unsigned long missing_pages; + unsigned long file_pages; unsigned long sync_size; struct file *file; u64 events_cleared; diff --git a/drivers/md/md.c b/drivers/md/md.c index 29ec6fe80ae8..628fa49170e1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2323,7 +2323,10 @@ super_1_allow_new_offset(struct md_rdev *rdev, unsigned long long new_offset) { /* All necessary checks on new >= old have been done */ - struct bitmap *bitmap; + struct bitmap *bitmap = rdev->mddev->bitmap; + struct md_bitmap_stats stats; + int err; + if (new_offset >= rdev->data_offset) return 1; @@ -2340,10 +2343,11 @@ super_1_allow_new_offset(struct md_rdev *rdev, */ if (rdev->sb_start + (32+4)*2 > new_offset) return 0; - bitmap = rdev->mddev->bitmap; - if (bitmap && !rdev->mddev->bitmap_info.file && + + err = md_bitmap_get_stats(bitmap, &stats); + if (!err && !rdev->mddev->bitmap_info.file && rdev->sb_start + rdev->mddev->bitmap_info.offset + - bitmap->storage.file_pages * (PAGE_SIZE>>9) > new_offset) + stats.file_pages * (PAGE_SIZE>>9) > new_offset) return 0; if (rdev->badblocks.sector + rdev->badblocks.size > new_offset) return 0;