[dm-devel] [PATCH 1/7] dm-crypt: use unbound workqueue for request processing

[Mikulas Patocka]

Use unbound workqueue so that work is automatically ballanced between
available CPUs.

Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>

---
 drivers/md/dm-crypt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-3.18-rc1/drivers/md/dm-crypt.c
===================================================================
--- linux-3.18-rc1.orig/drivers/md/dm-crypt.c	2014-10-20 16:54:01.000000000 +0200
+++ linux-3.18-rc1/drivers/md/dm-crypt.c	2014-10-21 00:49:28.000000000 +0200
@@ -1808,7 +1808,7 @@ static int crypt_ctr(struct dm_target *t
 	}
 
 	cc->crypt_queue = alloc_workqueue("kcryptd",
-					  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM, 1);
+					  WQ_CPU_INTENSIVE | WQ_MEM_RECLAIM | WQ_UNBOUND, num_online_cpus());
 	if (!cc->crypt_queue) {
 		ti->error = "Couldn't create kcryptd queue";
 		goto bad;