padata: remove cpumask change notifier
Since commit 63d3578892dc ("crypto: pcrypt - remove padata cpumask
notifier") this feature is unused, so get rid of it.
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/kernel/padata.c b/kernel/padata.c
index f5964f0..bc594c0 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -514,23 +514,16 @@ static int padata_replace_one(struct padata_shell *ps)
static int padata_replace(struct padata_instance *pinst)
{
- int notification_mask = 0;
struct padata_shell *ps;
int err;
pinst->flags |= PADATA_RESET;
- cpumask_copy(pinst->omask, pinst->rcpumask.pcpu);
cpumask_and(pinst->rcpumask.pcpu, pinst->cpumask.pcpu,
cpu_online_mask);
- if (!cpumask_equal(pinst->omask, pinst->rcpumask.pcpu))
- notification_mask |= PADATA_CPU_PARALLEL;
- cpumask_copy(pinst->omask, pinst->rcpumask.cbcpu);
cpumask_and(pinst->rcpumask.cbcpu, pinst->cpumask.cbcpu,
cpu_online_mask);
- if (!cpumask_equal(pinst->omask, pinst->rcpumask.cbcpu))
- notification_mask |= PADATA_CPU_SERIAL;
list_for_each_entry(ps, &pinst->pslist, list) {
err = padata_replace_one(ps);
@@ -544,48 +537,11 @@ static int padata_replace(struct padata_instance *pinst)
if (atomic_dec_and_test(&ps->opd->refcnt))
padata_free_pd(ps->opd);
- if (notification_mask)
- blocking_notifier_call_chain(&pinst->cpumask_change_notifier,
- notification_mask,
- &pinst->cpumask);
-
pinst->flags &= ~PADATA_RESET;
return err;
}
-/**
- * padata_register_cpumask_notifier - Registers a notifier that will be called
- * if either pcpu or cbcpu or both cpumasks change.
- *
- * @pinst: A poineter to padata instance
- * @nblock: A pointer to notifier block.
- */
-int padata_register_cpumask_notifier(struct padata_instance *pinst,
- struct notifier_block *nblock)
-{
- return blocking_notifier_chain_register(&pinst->cpumask_change_notifier,
- nblock);
-}
-EXPORT_SYMBOL(padata_register_cpumask_notifier);
-
-/**
- * padata_unregister_cpumask_notifier - Unregisters cpumask notifier
- * registered earlier using padata_register_cpumask_notifier
- *
- * @pinst: A pointer to data instance.
- * @nlock: A pointer to notifier block.
- */
-int padata_unregister_cpumask_notifier(struct padata_instance *pinst,
- struct notifier_block *nblock)
-{
- return blocking_notifier_chain_unregister(
- &pinst->cpumask_change_notifier,
- nblock);
-}
-EXPORT_SYMBOL(padata_unregister_cpumask_notifier);
-
-
/* If cpumask contains no active cpu, we mark the instance as invalid. */
static bool padata_validate_cpumask(struct padata_instance *pinst,
const struct cpumask *cpumask)
@@ -785,7 +741,6 @@ static void __padata_free(struct padata_instance *pinst)
WARN_ON(!list_empty(&pinst->pslist));
padata_stop(pinst);
- free_cpumask_var(pinst->omask);
free_cpumask_var(pinst->rcpumask.cbcpu);
free_cpumask_var(pinst->rcpumask.pcpu);
free_cpumask_var(pinst->cpumask.pcpu);
@@ -965,8 +920,6 @@ static struct padata_instance *padata_alloc(const char *name,
goto err_free_masks;
if (!alloc_cpumask_var(&pinst->rcpumask.cbcpu, GFP_KERNEL))
goto err_free_rcpumask_pcpu;
- if (!alloc_cpumask_var(&pinst->omask, GFP_KERNEL))
- goto err_free_rcpumask_cbcpu;
INIT_LIST_HEAD(&pinst->pslist);
@@ -976,11 +929,10 @@ static struct padata_instance *padata_alloc(const char *name,
cpumask_and(pinst->rcpumask.cbcpu, cbcpumask, cpu_online_mask);
if (padata_setup_cpumasks(pinst))
- goto err_free_omask;
+ goto err_free_rcpumask_cbcpu;
pinst->flags = 0;
- BLOCKING_INIT_NOTIFIER_HEAD(&pinst->cpumask_change_notifier);
kobject_init(&pinst->kobj, &padata_attr_type);
mutex_init(&pinst->lock);
@@ -994,8 +946,6 @@ static struct padata_instance *padata_alloc(const char *name,
return pinst;
-err_free_omask:
- free_cpumask_var(pinst->omask);
err_free_rcpumask_cbcpu:
free_cpumask_var(pinst->rcpumask.cbcpu);
err_free_rcpumask_pcpu: