Re: [PATCH v6 4/6] scsi: sd: Allow max_sectors be capped at DMA optimal size limit

Martin K. Petersen
2022-07-19T02:31:34Z

John,

> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index a1a2ac09066f..3eaee1f7aaca 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -3296,6 +3296,8 @@ static int sd_revalidate_disk(struct gendisk *disk)
> (sector_t)BLK_DEF_MAX_SECTORS);
> }
>
> + rw_max = min_not_zero(rw_max, sdp->host->opt_sectors);
> +
> /* Do not exceed controller limit */
> rw_max = min(rw_max, queue_max_hw_sectors(q));

I'm OK with this approach.

Acked-by: Martin K. Petersen <martin.petersen@oracle.com>

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Martin K. Petersen Oracle Linux Engineering