470 void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)  in blk_queue_stack_limits()  argument
472 	blk_stack_limits(&t->limits, &b->limits, 0);  in blk_queue_stack_limits()
497 int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,  in blk_stack_limits()  argument
502 	t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);  in blk_stack_limits()
503 	t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);  in blk_stack_limits()
504 	t->max_dev_sectors = min_not_zero(t->max_dev_sectors, b->max_dev_sectors);  in blk_stack_limits()
505 	t->max_write_same_sectors = min(t->max_write_same_sectors,  in blk_stack_limits()
507 	t->max_write_zeroes_sectors = min(t->max_write_zeroes_sectors,  in blk_stack_limits()
509 	t->bounce_pfn = min_not_zero(t->bounce_pfn, b->bounce_pfn);  in blk_stack_limits()
511 	t->seg_boundary_mask = min_not_zero(t->seg_boundary_mask,  in blk_stack_limits()
513 	t->virt_boundary_mask = min_not_zero(t->virt_boundary_mask,  in blk_stack_limits()
516 	t->max_segments = min_not_zero(t->max_segments, b->max_segments);  in blk_stack_limits()
517 	t->max_discard_segments = min_not_zero(t->max_discard_segments,  in blk_stack_limits()
519 	t->max_integrity_segments = min_not_zero(t->max_integrity_segments,  in blk_stack_limits()
522 	t->max_segment_size = min_not_zero(t->max_segment_size,  in blk_stack_limits()
525 	t->misaligned |= b->misaligned;  in blk_stack_limits()
532 	if (t->alignment_offset != alignment) {  in blk_stack_limits()
534 		top = max(t->physical_block_size, t->io_min)  in blk_stack_limits()
535 			+ t->alignment_offset;  in blk_stack_limits()
540 			t->misaligned = 1;  in blk_stack_limits()
545 	t->logical_block_size = max(t->logical_block_size,  in blk_stack_limits()
548 	t->physical_block_size = max(t->physical_block_size,  in blk_stack_limits()
551 	t->io_min = max(t->io_min, b->io_min);  in blk_stack_limits()
552 	t->io_opt = lcm_not_zero(t->io_opt, b->io_opt);  in blk_stack_limits()
555 	if (t->physical_block_size & (t->logical_block_size - 1)) {  in blk_stack_limits()
556 		t->physical_block_size = t->logical_block_size;  in blk_stack_limits()
557 		t->misaligned = 1;  in blk_stack_limits()
562 	if (t->io_min & (t->physical_block_size - 1)) {  in blk_stack_limits()
563 		t->io_min = t->physical_block_size;  in blk_stack_limits()
564 		t->misaligned = 1;  in blk_stack_limits()
569 	if (t->io_opt & (t->physical_block_size - 1)) {  in blk_stack_limits()
570 		t->io_opt = 0;  in blk_stack_limits()
571 		t->misaligned = 1;  in blk_stack_limits()
575 	t->raid_partial_stripes_expensive =  in blk_stack_limits()
576 		max(t->raid_partial_stripes_expensive,  in blk_stack_limits()
580 	t->alignment_offset = lcm_not_zero(t->alignment_offset, alignment)  in blk_stack_limits()
581 		% max(t->physical_block_size, t->io_min);  in blk_stack_limits()
584 	if (t->alignment_offset & (t->logical_block_size - 1)) {  in blk_stack_limits()
585 		t->misaligned = 1;  in blk_stack_limits()
593 		if (t->discard_granularity != 0 &&  in blk_stack_limits()
594 		    t->discard_alignment != alignment) {  in blk_stack_limits()
595 			top = t->discard_granularity + t->discard_alignment;  in blk_stack_limits()
600 				t->discard_misaligned = 1;  in blk_stack_limits()
603 		t->max_discard_sectors = min_not_zero(t->max_discard_sectors,  in blk_stack_limits()
605 		t->max_hw_discard_sectors = min_not_zero(t->max_hw_discard_sectors,  in blk_stack_limits()
607 		t->discard_granularity = max(t->discard_granularity,  in blk_stack_limits()
609 		t->discard_alignment = lcm_not_zero(t->discard_alignment, alignment) %  in blk_stack_limits()
610 			t->discard_granularity;  in blk_stack_limits()
614 		t->chunk_sectors = min_not_zero(t->chunk_sectors,  in blk_stack_limits()
632 int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev,  in bdev_stack_limits()  argument
639 	return blk_stack_limits(t, &bq->limits, start);  in bdev_stack_limits()
656 	struct request_queue *t = disk->queue;  in disk_stack_limits()  local
658 	if (bdev_stack_limits(&t->limits, bdev, offset >> 9) < 0) {  in disk_stack_limits()