From 91a71d612128f84f725022d7b7c5d5a741f6fdc7 Mon Sep 17 00:00:00 2001 From: Daniel Jordan Date: Tue, 3 Dec 2019 14:31:12 -0500 Subject: 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 Cc: Eric Biggers Cc: Herbert Xu Cc: Jonathan Corbet Cc: Steffen Klassert Cc: linux-crypto@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu --- kernel/padata.c | 52 +--------------------------------------------------- 1 file changed, 1 insertion(+), 51 deletions(-) (limited to 'kernel/padata.c') diff --git a/kernel/padata.c b/kernel/padata.c index f5964f015139..bc594c00b26e 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: -- cgit v1.2.3