diff options
Diffstat (limited to 'block/blk-settings.c')
| -rw-r--r-- | block/blk-settings.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index 9741d1d83e98..dde5c2e9a728 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); |