[PATCH 2/2] null_blk: make sure submit_queues > 0
From: weiping zhang <hidden>
Date: 2017-08-02 16:27:46
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
set submit_queues to 1 by default, and make sure it's value > 0. Signed-off-by: weiping zhang <redacted> --- 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 72e2bc5..f1d0ca0 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) {
--
2.9.4