From d424681cc9ebaaeac2b6af842d2f497ba7ccf349 Mon Sep 17 00:00:00 2001 From: weiping zhang Date: Thu, 3 Aug 2017 00:27:37 +0800 Subject: [PATCH] null_blk: make sure submit_queues > 0 set submit_queues to 1 by default, and make sure it's value > 0. Signed-off-by: weiping zhang Signed-off-by: Jens Axboe --- drivers/block/null_blk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 72e2bc5017d4..f1d0ca020999 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -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) {