zoned devices require single-thread I/O submission to guarantee
sequential I/O, so enable the block layer flag for it.
Signed-off-by: Hannes Reinecke <h...@suse.de>
---
drivers/scsi/sd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 4b704b0..44960fd 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2154,6 +2154,7 @@ static void sd_read_zones(struct scsi_disk *sdkp,
unsigned char *buffer)
blk_queue_chunk_sectors(sdkp->disk->queue,
logical_to_sectors(sdkp->device, zone_len));
sd_config_discard(sdkp, SD_ZBC_RESET_WP);
+ queue_flag_set_unlocked(QUEUE_FLAG_SINGLE, sdkp->disk->queue);
sd_zbc_setup(sdkp, buffer, SD_BUF_SIZE);
}
--
1.8.5.6
--
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