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 <[email protected]>
---
 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 392337f16ecf..6b4c1f674239 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";
-- 
2.27.0

--
dm-devel mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/dm-devel

Reply via email to