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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 <zhangweiping@didichuxing.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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1 changed files with 2 additions and 2 deletions
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@ -65,7 +65,7 @@ enum {
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NULL_Q_MQ = 2,
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};
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static int submit_queues;
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static int submit_queues = 1;
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module_param(submit_queues, int, S_IRUGO);
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MODULE_PARM_DESC(submit_queues, "Number of submission queues");
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@ -849,7 +849,7 @@ static int __init null_init(void)
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}
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} else if (submit_queues > nr_cpu_ids)
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submit_queues = nr_cpu_ids;
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else if (!submit_queues)
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else if (submit_queues <= 0)
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submit_queues = 1;
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if (queue_mode == NULL_Q_MQ && shared_tags) {
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