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sd: Optimal I/O size is in bytes, not sectors

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Commit ca369d51b3 ("block/sd: Fix device-imposed transfer length
limits") accidentally switched optimal I/O size reporting from bytes to
block layer sectors.

Signed-off-by: Martin K. Petersen <[email protected]>
Reported-by: Christian Borntraeger <[email protected]>
Tested-by: Christian Borntraeger <[email protected]>
Fixes: ca369d51b3
Cc: [email protected] # 4.4+
Reviewed-by: James E.J. Bottomley <[email protected]>
Reviewed-by: Ewan D. Milne <[email protected]>
Reviewed-by: Matthew R. Ochs <[email protected]>
This commit is contained in:
Martin K. Petersen 2016-01-20 11:01:23 -05:00
commit d0eb20a863
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/sd.c
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@ -2893,7 +2893,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
sdkp->opt_xfer_blocks <= SD_DEF_XFER_BLOCKS &&
sdkp->opt_xfer_blocks * sdp->sector_size >= PAGE_CACHE_SIZE)
rw_max = q->limits.io_opt =
logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
sdkp->opt_xfer_blocks * sdp->sector_size;
else
rw_max = BLK_DEF_MAX_SECTORS;