openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

nvme: default to 0 poll queues 

We need a better way of configuring this, and given that polling is
(still) a bit niche, let's default to using 0 poll queues. That way
we'll have the same read/write/poll behavior as 4.20, and users that
want to test/use polling are required to do manual configuration of the
number of poll queues.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2018-11-19 08:18:24 -07:00
parent a78b03bc73
commit a4668d9ba4
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/nvme/host/pci.c
View File

@ -86,7 +86,7 @@ MODULE_PARM_DESC(write_queues,
"Number of queues to use for writes. If not set, reads and writes " "Number of queues to use for writes. If not set, reads and writes "
"will share a queue set."); "will share a queue set.");
static int poll_queues = 1; static int poll_queues = 0;
module_param_cb(poll_queues, &queue_count_ops, &poll_queues, 0644); module_param_cb(poll_queues, &queue_count_ops, &poll_queues, 0644);
MODULE_PARM_DESC(poll_queues, "Number of queues to use for polled IO."); MODULE_PARM_DESC(poll_queues, "Number of queues to use for polled IO.");