[dm-devel] [PATCH 2/3] dm: Use blk_queue_copy_limits()

[Jun'ichi Nomura]

Use new blk_queue_copy_limits() so that invalid limits
(max_sectors == 0) are fixed up appropriately when copied to the queue.

Signed-off-by: Kiyoshi Ueda <k-ueda at ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura at ce.jp.nec.com>
Reported-by: David Strand <dpstrand at gmail.com>
Cc: Mike Snitzer <snitzer at redhat.com>
Cc: Alasdair G Kergon <agk at redhat.com>
Cc: Martin K. Petersen <martin.petersen at oracle.com>
Cc: Jens Axboe <jens.axboe at oracle.com>
---
 drivers/md/dm-table.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.31.work/drivers/md/dm-table.c
===================================================================
--- linux-2.6.31.work.orig/drivers/md/dm-table.c
+++ linux-2.6.31.work/drivers/md/dm-table.c
@@ -1090,7 +1090,7 @@ void dm_table_set_restrictions(struct dm
 	/*
 	 * Copy table's limits to the DM device's request_queue
 	 */
-	q->limits = *limits;
+	blk_queue_copy_limits(q, limits);

 	if (limits->no_cluster)
 		queue_flag_clear_unlocked(QUEUE_FLAG_CLUSTER, q);