X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=block%2Fblk-settings.c;h=43990b1d148b878fff7a45393fbf6cdb8b7dfe74;hb=76efc1c770968d6c786e5340029f8005ed29b2a5;hp=659cdb8a07fef767582a83ce2c55206295df647a;hpb=c367caf1a38b6f0a1aababafd88b00fefa625f9e;p=linux-2.6-microblaze.git

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 659cdb8a07fe..43990b1d148b 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -157,10 +157,16 @@ void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_secto
 		       __func__, max_hw_sectors);
 	}
 
+	max_hw_sectors = round_down(max_hw_sectors,
+				    limits->logical_block_size >> SECTOR_SHIFT);
 	limits->max_hw_sectors = max_hw_sectors;
+
 	max_sectors = min_not_zero(max_hw_sectors, limits->max_dev_sectors);
 	max_sectors = min_t(unsigned int, max_sectors, BLK_DEF_MAX_SECTORS);
+	max_sectors = round_down(max_sectors,
+				 limits->logical_block_size >> SECTOR_SHIFT);
 	limits->max_sectors = max_sectors;
+
 	q->backing_dev_info->io_pages = max_sectors >> (PAGE_SHIFT - 9);
 }
 EXPORT_SYMBOL(blk_queue_max_hw_sectors);
@@ -321,13 +327,20 @@ EXPORT_SYMBOL(blk_queue_max_segment_size);
  **/
 void blk_queue_logical_block_size(struct request_queue *q, unsigned int size)
 {
-	q->limits.logical_block_size = size;
+	struct queue_limits *limits = &q->limits;
 
-	if (q->limits.physical_block_size < size)
-		q->limits.physical_block_size = size;
+	limits->logical_block_size = size;
 
-	if (q->limits.io_min < q->limits.physical_block_size)
-		q->limits.io_min = q->limits.physical_block_size;
+	if (limits->physical_block_size < size)
+		limits->physical_block_size = size;
+
+	if (limits->io_min < limits->physical_block_size)
+		limits->io_min = limits->physical_block_size;
+
+	limits->max_hw_sectors =
+		round_down(limits->max_hw_sectors, size >> SECTOR_SHIFT);
+	limits->max_sectors =
+		round_down(limits->max_sectors, size >> SECTOR_SHIFT);
 }
 EXPORT_SYMBOL(blk_queue_logical_block_size);