dasd.c (64b9fb5704a479d98a59f2a1d45d3331a8f847f8) dasd.c (086fa5ff0854c676ec333760f4c0154b3b242616)
1/*
2 * File...........: linux/drivers/s390/block/dasd.c
3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4 * Horst Hummel <Horst.Hummel@de.ibm.com>
5 * Carsten Otte <Cotte@de.ibm.com>
6 * Martin Schwidefsky <schwidefsky@de.ibm.com>
7 * Bugreports.to..: <Linux390@de.ibm.com>
8 * Copyright IBM Corp. 1999, 2009

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2124 * Allocate and initialize request queue.
2125 */
2126static void dasd_setup_queue(struct dasd_block *block)
2127{
2128 int max;
2129
2130 blk_queue_logical_block_size(block->request_queue, block->bp_block);
2131 max = block->base->discipline->max_blocks << block->s2b_shift;
1/*
2 * File...........: linux/drivers/s390/block/dasd.c
3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4 * Horst Hummel <Horst.Hummel@de.ibm.com>
5 * Carsten Otte <Cotte@de.ibm.com>
6 * Martin Schwidefsky <schwidefsky@de.ibm.com>
7 * Bugreports.to..: <Linux390@de.ibm.com>
8 * Copyright IBM Corp. 1999, 2009

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2124 * Allocate and initialize request queue.
2125 */
2126static void dasd_setup_queue(struct dasd_block *block)
2127{
2128 int max;
2129
2130 blk_queue_logical_block_size(block->request_queue, block->bp_block);
2131 max = block->base->discipline->max_blocks << block->s2b_shift;
2132 blk_queue_max_sectors(block->request_queue, max);
2132 blk_queue_max_hw_sectors(block->request_queue, max);
2133 blk_queue_max_phys_segments(block->request_queue, -1L);
2134 blk_queue_max_hw_segments(block->request_queue, -1L);
2135 /* with page sized segments we can translate each segement into
2136 * one idaw/tidaw
2137 */
2138 blk_queue_max_segment_size(block->request_queue, PAGE_SIZE);
2139 blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1);
2140 blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL);

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2133 blk_queue_max_phys_segments(block->request_queue, -1L);
2134 blk_queue_max_hw_segments(block->request_queue, -1L);
2135 /* with page sized segments we can translate each segement into
2136 * one idaw/tidaw
2137 */
2138 blk_queue_max_segment_size(block->request_queue, PAGE_SIZE);
2139 blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1);
2140 blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL);

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