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null_blk: set use_per_node_hctx param to false

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The defaults for the module is to instantiate itself with blk-mq and a
submit queue for each CPU node in the system.

To save resources, initialize instead with a single submit queue.

Signed-off-by: Matias Bjorling <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Matias Bjørling 2013-12-21 00:11:00 +01:00 • committed by Jens Axboe
commit 200052440d
2 changed files with 7 additions and 6 deletions
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4
drivers/block/null_blk.c
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@ -101,9 +101,9 @@ static int hw_queue_depth = 64;
module_param(hw_queue_depth, int, S_IRUGO);
MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 64");
static bool use_per_node_hctx = true;
static bool use_per_node_hctx = false;
module_param(use_per_node_hctx, bool, S_IRUGO);
MODULE_PARM_DESC(use_per_node_hctx, "Use per-node allocation for hardware context queues. Default: true");
MODULE_PARM_DESC(use_per_node_hctx, "Use per-node allocation for hardware context queues. Default: false");
static void put_tag(struct nullb_queue *nq, unsigned int tag)
{