crypto: pcrypt - Use the online cpumask as the default

We use the active cpumask to determine the superset of cpus
to use for parallelization. However, the active cpumask is
for internal usage of the scheduler and therefore not the
appropriate cpumask for these purposes. So use the online
cpumask instead.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index 29a89dad68b664b0dcfefdf29a19631904b21e3f..b2c99dc1c5e2f244bab9cf8fafcedb0860df67f6 100644 (file)
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -280,11 +280,11 @@ static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm)
 
        ictx->tfm_count++;
 
-       cpu_index = ictx->tfm_count % cpumask_weight(cpu_active_mask);
+       cpu_index = ictx->tfm_count % cpumask_weight(cpu_online_mask);
 
-       ctx->cb_cpu = cpumask_first(cpu_active_mask);
+       ctx->cb_cpu = cpumask_first(cpu_online_mask);
        for (cpu = 0; cpu < cpu_index; cpu++)
-               ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_active_mask);
+               ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask);
 
        cipher = crypto_spawn_aead(crypto_instance_ctx(inst));
 
@@ -472,7 +472,7 @@ static int pcrypt_init_padata(struct padata_pcrypt *pcrypt,
                goto err_free_padata;
        }
 
-       cpumask_and(mask->mask, cpu_possible_mask, cpu_active_mask);
+       cpumask_and(mask->mask, cpu_possible_mask, cpu_online_mask);
        rcu_assign_pointer(pcrypt->cb_cpumask, mask);
 
        pcrypt->nblock.notifier_call = pcrypt_cpumask_change_notify;