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block: Make struct request_queue smaller for CONFIG_BLK_DEV_ZONED=n

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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>
This commit is contained in:
Bart Van Assche
2018-06-15 14:55:21 -07:00
committed by Jens Axboe
parent 7c8542b798
commit 6a5ac98465
6 changed files with 44 additions and 15 deletions
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15
block/blk-mq-debugfs.c
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@@ -206,21 +206,6 @@ static ssize_t queue_write_hint_store(void *data, const char __user *buf,
return count;
}
static 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;
}
static const struct blk_mq_debugfs_attr blk_mq_debugfs_queue_attrs[] = {
{ "poll_stat", 0400, queue_poll_stat_show },
{ "requeue_list", 0400, .seq_ops = &queue_requeue_list_seq_ops },