From patchwork Wed Jun 4 02:08:46 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Yi X-Patchwork-Id: 894670 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 82B8A1D2F42; Wed, 4 Jun 2025 02:21:55 +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=1749003717; cv=none; b=HNBGNU50yQtipPtwTeh4OvI5J2gksfoGlwRS6Y6sWo8zMH9/FNuJymLE6Miuop7W+v3j0MwDzbJpBLMthYMAZTbj5N3dfXfnA9RIgnEBH7ZbJZQo0YREl5MgJJT0kz10NGZfvwVQJp+PlNDejcxKHSfzkrfUWhNIqLEvUY5KWbA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749003717; c=relaxed/simple; bh=MEAFDPjrPywPakRo47G9v1FqUr6SzGWw21rDcsjCyvQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=p/k+N61TMySQaNIiq5s3FUW1fe1sehjCbMgJXWXyLqRk0psRBhq6KQR9Z+erj2sD/ETlMA1G4hlc+dQL30c8Bsk+5AkbOj+UmeeTxvbu2PfgBoCCXjg2heueTWh5ITbwagEccWCOpQN7Caj6RxtWWC6emqCVUaMa6WdZDHfKMEU= 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 [172.19.163.235]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTPS id 4bBrth4M3yzYQvP8; Wed, 4 Jun 2025 10:21:48 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id A323F1A08F8; Wed, 4 Jun 2025 10:21:47 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.112.188]) by APP4 (Coremail) with SMTP id gCh0CgCnCl+nrT9oedfBOQ--.14997S10; Wed, 04 Jun 2025 10:21:47 +0800 (CST) From: Zhang Yi To: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-block@vger.kernel.org, dm-devel@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org Cc: linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org, hch@lst.de, tytso@mit.edu, djwong@kernel.org, john.g.garry@oracle.com, bmarzins@redhat.com, chaitanyak@nvidia.com, shinichiro.kawasaki@wdc.com, brauner@kernel.org, martin.petersen@oracle.com, yi.zhang@huawei.com, yi.zhang@huaweicloud.com, chengzhihao1@huawei.com, yukuai3@huawei.com, yangerkun@huawei.com Subject: [PATCH 06/10] dm: add BLK_FEAT_WRITE_ZEROES_UNMAP support Date: Wed, 4 Jun 2025 10:08:46 +0800 Message-ID: <20250604020850.1304633-7-yi.zhang@huaweicloud.com> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20250604020850.1304633-1-yi.zhang@huaweicloud.com> References: <20250604020850.1304633-1-yi.zhang@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: gCh0CgCnCl+nrT9oedfBOQ--.14997S10 X-Coremail-Antispam: 1UD129KBjvJXoW7Ww4rJr4DAw1fWFykWFW7urg_yoW8CFyUp3 ZrWa43try5tF47C3Z5WFyI9FyYqa1YyFy7KrW7Cws5u3WUWryjgF47ta4UX3yDJFy7Xay7 Ka4jkr9rCF4rGwUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUmS14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2 kIc2xKxwCY1x0262kKe7AKxVW8ZVWrXwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkE bVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67 AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI 42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF 4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8Jr0_Cr1UYxBI daVFxhVjvjDU0xZFpf9x0pRiF4iUUUUU= X-CM-SenderInfo: d1lo6xhdqjqx5xdzvxpfor3voofrz/ From: Zhang Yi Set the BLK_FEAT_WRITE_ZEROES_UNMAP feature on stacking queue limits by default. This feature shall be disabled if any underlying device does not support it. Signed-off-by: Zhang Yi Reviewed-by: Benjamin Marzinski --- drivers/md/dm-table.c | 7 +++++-- drivers/md/dm.c | 1 + 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 6b23e777e10e..4d450713b69d 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -599,7 +599,8 @@ int dm_split_args(int *argc, char ***argvp, char *input) static void dm_set_stacking_limits(struct queue_limits *limits) { blk_set_stacking_limits(limits); - limits->features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT | BLK_FEAT_POLL; + limits->features |= BLK_FEAT_IO_STAT | BLK_FEAT_NOWAIT | BLK_FEAT_POLL | + BLK_FEAT_WRITE_ZEROES_UNMAP; } /* @@ -1851,8 +1852,10 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, limits->discard_alignment = 0; } - if (!dm_table_supports_write_zeroes(t)) + if (!dm_table_supports_write_zeroes(t)) { limits->max_write_zeroes_sectors = 0; + limits->features &= ~BLK_FEAT_WRITE_ZEROES_UNMAP; + } if (!dm_table_supports_secure_erase(t)) limits->max_secure_erase_sectors = 0; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 5ab7574c0c76..b59c3dbeaaf1 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1096,6 +1096,7 @@ void disable_write_zeroes(struct mapped_device *md) /* device doesn't really support WRITE ZEROES, disable it */ limits->max_write_zeroes_sectors = 0; + limits->features &= ~BLK_FEAT_WRITE_ZEROES_UNMAP; } static bool swap_bios_limit(struct dm_target *ti, struct bio *bio)