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authorTejun Heo <tj@kernel.org>2011-01-04 04:38:44 (GMT)
committerHerbert Xu <herbert@gondor.apana.org.au>2011-01-04 12:34:08 (GMT)
commitc73b7d02da9bfb4fadafc118a24ee868708839b6 (patch)
tree8f3a33015c5f81443c34afd528882fe2f77ebe31
parent41f2977d40798ce45f4da7a1291039ffbe9e1dbc (diff)
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: Tejun Heo <tj@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/crypto_wq.c3
-rw-r--r--crypto/pcrypt.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/crypto/crypto_wq.c b/crypto/crypto_wq.c
index fdcf624..b980ee1 100644
--- a/crypto/crypto_wq.c
+++ b/crypto/crypto_wq.c
@@ -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;
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index de30782..806635f 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -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;

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