From a2b8b2d975673b1a50ab0bcce5d146b9335edfad Mon Sep 17 00:00:00 2001 From: Jeffle Xu Date: Mon, 30 Nov 2020 19:33:39 +0800 Subject: [PATCH] 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: Jeffle Xu Signed-off-by: Mike Snitzer --- drivers/md/dm-crypt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 53791138d78b..5f9f9b3a226d 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -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"; -- 2.20.1