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block: Fix bounce limit setting in DM

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blk_queue_bounce_limit() is more than a wrapper about the request queue
limits.bounce_pfn variable.  Introduce blk_queue_bounce_pfn() which can
be called by stacking drivers that wish to set the bounce limit
explicitly.

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
2009-06-03 09:33:18 +02:00
committed by Jens Axboe
parent dbdc9dd342
commit a05c0205ba
3 changed files with 19 additions and 1 deletions
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2
drivers/md/dm-table.c
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@@ -920,7 +920,7 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q)
blk_queue_max_segment_size(q, t->limits.max_segment_size);
blk_queue_max_hw_sectors(q, t->limits.max_hw_sectors);
blk_queue_segment_boundary(q, t->limits.seg_boundary_mask);
blk_queue_bounce_limit(q, t->limits.bounce_pfn);
blk_queue_bounce_pfn(q, t->limits.bounce_pfn);
if (t->limits.no_cluster)
queue_flag_clear_unlocked(QUEUE_FLAG_CLUSTER, q);