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Mon, 5 Aug 2024 11:33:39 +0000 Received: from DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::4f45:f4ab:121:e088]) by DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::4f45:f4ab:121:e088%7]) with mapi id 15.20.7828.023; Mon, 5 Aug 2024 11:33:39 +0000 From: John Garry To: axboe@kernel.dk, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, John Garry Subject: [PATCH 1/2] scsi: sd: Don't check if a write for REQ_ATOMIC Date: Mon, 5 Aug 2024 11:33:14 +0000 Message-Id: <20240805113315.1048591-2-john.g.garry@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240805113315.1048591-1-john.g.garry@oracle.com> References: <20240805113315.1048591-1-john.g.garry@oracle.com> X-ClientProxiedBy: LO2P265CA0159.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:9::27) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR10MB4313:EE_|CH2PR10MB4263:EE_ X-MS-Office365-Filtering-Correlation-Id: eb57644d-6b18-45a9-daf9-08dcb542737a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014; 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Fixes: bf4ae8f2e640 ("scsi: sd: Atomic write support") Signed-off-by: John Garry Reviewed-by: Kanchan Joshi --- drivers/scsi/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 8bb3a3611851..2ab47fb50c75 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1382,7 +1382,7 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd) if (protect && sdkp->protection_type == T10_PI_TYPE2_PROTECTION) { ret = sd_setup_rw32_cmnd(cmd, write, lba, nr_blocks, protect | fua, dld); - } else if (rq->cmd_flags & REQ_ATOMIC && write) { + } else if (rq->cmd_flags & REQ_ATOMIC) { ret = sd_setup_atomic_cmnd(cmd, lba, nr_blocks, sdkp->use_atomic_write_boundary, protect | fua); From patchwork Mon Aug 5 11:33:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 817334 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (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 C77A615698D; 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Flag REQ_ATOMIC can only be set for writes, so don't bother checking for reads. Fixes: 9da3d1e912f3 ("block: Add core atomic write support") Signed-off-by: John Garry Reviewed-by: Kanchan Joshi --- block/blk-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/blk-core.c b/block/blk-core.c index 1217c2cd66dd..bc5e8c5eaac9 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -799,6 +799,7 @@ void submit_bio_noacct(struct bio *bio) switch (bio_op(bio)) { case REQ_OP_READ: + break; case REQ_OP_WRITE: if (bio->bi_opf & REQ_ATOMIC) { status = blk_validate_atomic_write_op_size(q, bio);