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Commit c73b7d02 authored by Tejun Heo's avatar Tejun Heo Committed by Herbert Xu
Browse files

crypto: mark crypto workqueues CPU_INTENSIVE 



kcrypto_wq and pcrypt->wq's are used to run ciphers and may consume
considerable amount of CPU cycles.  Mark both as CPU_INTENSIVE so that
they don't block other work items.

As the workqueues are primarily used to burn CPU cycles, concurrency
levels shouldn't matter much and are left at 1.  A higher value may be
beneficial and needs investigation.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 41f2977d

crypto/crypto_wq.c

+2 −1
Original line number Diff line number Diff line
@@ -20,7 +20,8 @@ EXPORT_SYMBOL_GPL(kcrypto_wq); 


static int __init crypto_wq_init(void)

{

	kcrypto_wq = create_workqueue("crypto");

	kcrypto_wq = alloc_workqueue("crypto",

				     WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);

	if (unlikely(!kcrypto_wq))

		return -ENOMEM;

	return 0;

crypto/pcrypt.c

+2 −1
Original line number Diff line number Diff line
@@ -455,7 +455,8 @@ static int pcrypt_init_padata(struct padata_pcrypt *pcrypt, 


	get_online_cpus();



	pcrypt->wq = create_workqueue(name);

	pcrypt->wq = alloc_workqueue(name,

				     WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);

	if (!pcrypt->wq)

		goto err;