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

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On 18/07/2022 11:47, Damien Le Moal wrote:
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);
  	}

Hi Damien,

+ rw_max = min_not_zero(rw_max, sdp->host->opt_sectors);
+
Adding a comment explaining what the cap is would be nice.



Christoph has now applied this (thanks, BTW), so would you like me to follow up with a patch on top with a comment?

Thanks,
John



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