/* blk_queue_segment_boundary - set boundary rules for segment merging @q: the request queue for the device @mask: the memory boundary mask  */
void blk_queue_segment_boundary(struct request_queue *q, unsigned long mask)
/* blk_queue_segment_boundary - set boundary rules for segment merging @q: the request queue for the device @mask: the memory boundary mask  */
void blk_queue_segment_boundary(struct request_queue *q, unsigned long mask)
{
	if (mask < PAGE_CACHE_SIZE - 1) {
		mask = PAGE_CACHE_SIZE - 1;
		printk(KERN_INFO "%s: set to minimum %lx\n",
		       __func__, mask);
	}
	q->limits.seg_boundary_mask = mask;
}