linux/block/blk-mq-debugfs-zoned.c
Bart Van Assche 6a5ac98465 block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n
Exclude zoned block device members from struct request_queue for
CONFIG_BLK_DEV_ZONED == n. Avoid breaking the build by only building
the code that uses these struct request_queue members if
CONFIG_BLK_DEV_ZONED != n.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Matias Bjorling <mb@lightnvm.io>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-07-09 09:07:52 -06:00

25 lines
478 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2017 Western Digital Corporation or its affiliates.
*
* This file is released under the GPL.
*/
#include <linux/blkdev.h>
#include "blk-mq-debugfs.h"
int queue_zone_wlock_show(void *data, struct seq_file *m)
{
struct request_queue *q = data;
unsigned int i;
if (!q->seq_zones_wlock)
return 0;
for (i = 0; i < q->nr_zones; i++)
if (test_bit(i, q->seq_zones_wlock))
seq_printf(m, "%u\n", i);
return 0;
}