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Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 apic updates from Ingo Molnar:
 "Improve the spreading of managed IRQs at allocation time"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irq/matrix: Spread managed interrupts on allocation
  irq/matrix: Split out the CPU selection code into a helper
This commit is contained in:
Linus Torvalds
2018-10-23 15:15:20 +01:00
parent 42f52e1c59 76f99ae5b5
commit cbbfb0ae2c
3 changed files with 58 additions and 36 deletions
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3
include/linux/irq.h
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@@ -1151,7 +1151,8 @@ void irq_matrix_offline(struct irq_matrix *m);
void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit, bool replace);
int irq_matrix_reserve_managed(struct irq_matrix *m, const struct cpumask *msk);
void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk);
int irq_matrix_alloc_managed(struct irq_matrix *m, unsigned int cpu);
int irq_matrix_alloc_managed(struct irq_matrix *m, const struct cpumask *msk,
unsigned int *mapped_cpu);
void irq_matrix_reserve(struct irq_matrix *m);
void irq_matrix_remove_reserved(struct irq_matrix *m);
int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,