linux-kernel - [PATCH 1/2] scsi: sd: Don't check if a write for REQ

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Message-Id: <20240805113315.1048591-2-john.g.garry@oracle.com>
Date: Mon,  5 Aug 2024 11:33:14 +0000
From: John Garry <john.g.garry@...cle.com>
To: axboe@...nel.dk, James.Bottomley@...senPartnership.com,
        martin.petersen@...cle.com
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, John Garry <john.g.garry@...cle.com>
Subject: [PATCH 1/2] scsi: sd: Don't check if a write for REQ_ATOMIC

Flag REQ_ATOMIC can only be set for writes, so don't check if the operation
is also a write in sd_setup_read_write_cmnd().

Fixes: bf4ae8f2e640 ("scsi: sd: Atomic write support")
Signed-off-by: John Garry <john.g.garry@...cle.com>
---
 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);
-- 
2.31.1