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block: Consolidate phys_segment and hw_segment limits

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Except for SCSI no device drivers distinguish between physical and
hardware segment limits.  Consolidate the two into a single segment
limit.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Martin K. Petersen
2010-02-26 00:20:39 -05:00
committed by Jens Axboe
parent 086fa5ff08
commit 8a78362c4e
35 changed files with 70 additions and 136 deletions
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3
drivers/scsi/st.c
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@@ -3983,8 +3983,7 @@ static int st_probe(struct device *dev)
return -ENODEV;
}
i = min(queue_max_hw_segments(SDp->request_queue),
queue_max_phys_segments(SDp->request_queue));
i = queue_max_segments(SDp->request_queue);
if (st_max_sg_segs < i)
i = st_max_sg_segs;
buffer = new_tape_buffer((SDp->host)->unchecked_isa_dma, i);