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Commit d424681c authored by weiping zhang's avatar weiping zhang Committed by Jens Axboe
Browse files

null_blk: make sure submit_queues > 0 



set submit_queues to 1 by default, and make sure it's value > 0.

Signed-off-by: default avatarweiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 558ab300

drivers/block/null_blk.c

+2 −2
Original line number Diff line number Diff line
@@ -65,7 +65,7 @@ enum { 
	NULL_Q_MQ		= 2,

};



static int submit_queues;

static int submit_queues = 1;

module_param(submit_queues, int, S_IRUGO);

MODULE_PARM_DESC(submit_queues, "Number of submission queues");
@@ -849,7 +849,7 @@ static int __init null_init(void) 
		}

	} else if (submit_queues > nr_cpu_ids)

		submit_queues = nr_cpu_ids;

	else if (!submit_queues)

	else if (submit_queues <= 0)

		submit_queues = 1;



	if (queue_mode == NULL_Q_MQ && shared_tags) {