Commit a2b8b2d9 authored by Jeffle Xu's avatar Jeffle Xu Committed by Mike Snitzer
Browse files

dm crypt: export sysfs of kcryptd workqueue 



It should be helpful to export sysfs of "kcryptd" workqueue in some
cases, such as setting specific CPU affinity of the workqueue.

Besides, also tweak the name format a little. The slash inside a
directory name will be translate into exclamation mark, such as
/sys/devices/virtual/workqueue/'kcryptd!253:0'.

Signed-off-by: default avatarJeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 4d7659bf

drivers/md/dm-crypt.c

+4 −3
Original line number Diff line number Diff line
@@ -3166,11 +3166,12 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) 
	}



	if (test_bit(DM_CRYPT_SAME_CPU, &cc->flags))

		cc->crypt_queue = alloc_workqueue("kcryptd/%s", WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,

		cc->crypt_queue = alloc_workqueue("kcryptd-%s", WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM,

						  1, devname);

	else

		cc->crypt_queue = alloc_workqueue("kcryptd/%s",

						  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,

		cc->crypt_queue = alloc_workqueue("kcryptd-%s",

						  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM |

						  WQ_UNBOUND | WQ_SYSFS,

						  num_online_cpus(), devname);

	if (!cc->crypt_queue) {

		ti->error = "Couldn't create kcryptd queue";