dm crypt: export sysfs of kcryptd workqueue (a2b8b2d9) · Commits · 戴 / test

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:

Jeffle Xu <jefflexu@linux.alibaba.com> Signed-off-by:

Mike Snitzer <snitzer@redhat.com>

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";

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