diff options
Diffstat (limited to 'include/linux/cpu_rmap.h')
| -rw-r--r-- | include/linux/cpu_rmap.h | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/include/linux/cpu_rmap.h b/include/linux/cpu_rmap.h index 1739510d8994..2fd7ba75362a 100644 --- a/include/linux/cpu_rmap.h +++ b/include/linux/cpu_rmap.h @@ -1,16 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __LINUX_CPU_RMAP_H #define __LINUX_CPU_RMAP_H /* * cpu_rmap.c: CPU affinity reverse-map support * Copyright 2011 Solarflare Communications Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. */ -#include <linux/cpumask.h> +#include <linux/cpumask_types.h> #include <linux/gfp.h> #include <linux/slab.h> #include <linux/kref.h> @@ -19,23 +16,23 @@ * struct cpu_rmap - CPU affinity reverse-map * @refcount: kref for object * @size: Number of objects to be reverse-mapped - * @used: Number of objects added * @obj: Pointer to array of object pointers * @near: For each CPU, the index and distance to the nearest object, * based on affinity masks */ struct cpu_rmap { struct kref refcount; - u16 size, used; + u16 size; void **obj; struct { u16 index; u16 dist; - } near[0]; + } near[]; }; #define CPU_RMAP_DIST_INF 0xffff extern struct cpu_rmap *alloc_cpu_rmap(unsigned int size, gfp_t flags); +extern void cpu_rmap_get(struct cpu_rmap *rmap); extern int cpu_rmap_put(struct cpu_rmap *rmap); extern int cpu_rmap_add(struct cpu_rmap *rmap, void *obj); @@ -52,8 +49,6 @@ static inline void *cpu_rmap_lookup_obj(struct cpu_rmap *rmap, unsigned int cpu) return rmap->obj[rmap->near[cpu].index]; } -#ifdef CONFIG_GENERIC_HARDIRQS - /** * alloc_irq_cpu_rmap - allocate CPU affinity reverse-map for IRQs * @size: Number of objects to be mapped @@ -66,7 +61,7 @@ static inline struct cpu_rmap *alloc_irq_cpu_rmap(unsigned int size) } extern void free_irq_cpu_rmap(struct cpu_rmap *rmap); +int irq_cpu_rmap_remove(struct cpu_rmap *rmap, int irq); extern int irq_cpu_rmap_add(struct cpu_rmap *rmap, int irq); -#endif #endif /* __LINUX_CPU_RMAP_H */ |