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-rw-r--r--kernel/padata.c74
1 files changed, 37 insertions, 37 deletions
diff --git a/kernel/padata.c b/kernel/padata.c
index 67ddd4acde9d..993278895ccc 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -647,6 +647,43 @@ out:
647} 647}
648EXPORT_SYMBOL(padata_set_cpumask); 648EXPORT_SYMBOL(padata_set_cpumask);
649 649
650/**
651 * padata_start - start the parallel processing
652 *
653 * @pinst: padata instance to start
654 */
655int padata_start(struct padata_instance *pinst)
656{
657 int err = 0;
658
659 mutex_lock(&pinst->lock);
660
661 if (pinst->flags & PADATA_INVALID)
662 err = -EINVAL;
663
664 __padata_start(pinst);
665
666 mutex_unlock(&pinst->lock);
667
668 return err;
669}
670EXPORT_SYMBOL(padata_start);
671
672/**
673 * padata_stop - stop the parallel processing
674 *
675 * @pinst: padata instance to stop
676 */
677void padata_stop(struct padata_instance *pinst)
678{
679 mutex_lock(&pinst->lock);
680 __padata_stop(pinst);
681 mutex_unlock(&pinst->lock);
682}
683EXPORT_SYMBOL(padata_stop);
684
685#ifdef CONFIG_HOTPLUG_CPU
686
650static int __padata_add_cpu(struct padata_instance *pinst, int cpu) 687static int __padata_add_cpu(struct padata_instance *pinst, int cpu)
651{ 688{
652 struct parallel_data *pd; 689 struct parallel_data *pd;
@@ -726,43 +763,6 @@ int padata_remove_cpu(struct padata_instance *pinst, int cpu, int mask)
726} 763}
727EXPORT_SYMBOL(padata_remove_cpu); 764EXPORT_SYMBOL(padata_remove_cpu);
728 765
729/**
730 * padata_start - start the parallel processing
731 *
732 * @pinst: padata instance to start
733 */
734int padata_start(struct padata_instance *pinst)
735{
736 int err = 0;
737
738 mutex_lock(&pinst->lock);
739
740 if (pinst->flags & PADATA_INVALID)
741 err =-EINVAL;
742
743 __padata_start(pinst);
744
745 mutex_unlock(&pinst->lock);
746
747 return err;
748}
749EXPORT_SYMBOL(padata_start);
750
751/**
752 * padata_stop - stop the parallel processing
753 *
754 * @pinst: padata instance to stop
755 */
756void padata_stop(struct padata_instance *pinst)
757{
758 mutex_lock(&pinst->lock);
759 __padata_stop(pinst);
760 mutex_unlock(&pinst->lock);
761}
762EXPORT_SYMBOL(padata_stop);
763
764#ifdef CONFIG_HOTPLUG_CPU
765
766static inline int pinst_has_cpu(struct padata_instance *pinst, int cpu) 766static inline int pinst_has_cpu(struct padata_instance *pinst, int cpu)
767{ 767{
768 return cpumask_test_cpu(cpu, pinst->cpumask.pcpu) || 768 return cpumask_test_cpu(cpu, pinst->cpumask.pcpu) ||