[PATCH 0/1] Fix unaligned queue_limit->io_opt on SAS and 4KN disk

[Lukas Herbolt <lukas@herbolt.com>]

If there is an SAS attached disk we set the SCSI host opt_sectors in 
sas_host_setup() to either dma_opt_mapping_size() or host->max_sectors 
this value can be later assigned to the device queue_limit as io_opt, but 
there is no further check if the io_opt is aligned with the device limits.

Rounding down to device logical_sectors will keep the io_opt large enough 
to keep benefit of bigger IO but still aligned within the device limits. 

Lukas Herbolt (1):
  scsi: sd: Rounddown host->opt_sectors to logical sectors reported by
    the disk.

 drivers/scsi/sd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.51.1