Revert "dm crypt: export sysfs of kcryptd workqueue"

This reverts commit a2b8b2d975673b1a50ab0bcce5d146b9335edfad.

WQ_SYSFS breaks the ability to reload a DM table due to sysfs kobject
collision (due to active and inactive table). Given lack of
demonstrated need for exposing this workqueue via sysfs: revert
exposing it.

Reported-by: Ignat Korchagin <ignat@cloudflare.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 5f9f9b3..5379113 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3166,12 +3166,11 @@ 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 | WQ_SYSFS,
+               cc->crypt_queue = alloc_workqueue("kcryptd/%s",
+                                                 WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND,
                                                  num_online_cpus(), devname);
        if (!cc->crypt_queue) {
                ti->error = "Couldn't create kcryptd queue";