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kernel/cpu.c: export __cpu_*_mask

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Exporting the cpumasks __cpu_possible_mask and friends will allow us to
remove the extra indirection through the cpu_*_mask variables.  It will
also allow the set_cpu_* functions to become static inlines, which will
give a .text reduction.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rasmus Villemoes 2016-01-20 15:00:19 -08:00 committed by Linus Torvalds
parent c4c54dd1ca
commit 4b804c85dc
2 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/cpumask.h
View File

@ -89,6 +89,10 @@ extern const struct cpumask *const cpu_possible_mask;
extern const struct cpumask *const cpu_online_mask; extern const struct cpumask *const cpu_online_mask;
extern const struct cpumask *const cpu_present_mask; extern const struct cpumask *const cpu_present_mask;
extern const struct cpumask *const cpu_active_mask; extern const struct cpumask *const cpu_active_mask;
extern struct cpumask __cpu_possible_mask;
extern struct cpumask __cpu_online_mask;
extern struct cpumask __cpu_present_mask;
extern struct cpumask __cpu_active_mask;
#if NR_CPUS > 1 #if NR_CPUS > 1
#define num_online_cpus() cpumask_weight(cpu_online_mask) #define num_online_cpus() cpumask_weight(cpu_online_mask)

14
kernel/cpu.c
View File

@ -759,23 +759,27 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
EXPORT_SYMBOL(cpu_all_bits); EXPORT_SYMBOL(cpu_all_bits);
#ifdef CONFIG_INIT_ALL_POSSIBLE #ifdef CONFIG_INIT_ALL_POSSIBLE
static struct cpumask __cpu_possible_mask __read_mostly struct cpumask __cpu_possible_mask __read_mostly
= {CPU_BITS_ALL}; = {CPU_BITS_ALL};
#else #else
static struct cpumask __cpu_possible_mask __read_mostly; struct cpumask __cpu_possible_mask __read_mostly;
#endif #endif
EXPORT_SYMBOL(__cpu_possible_mask);
const struct cpumask *const cpu_possible_mask = &__cpu_possible_mask; const struct cpumask *const cpu_possible_mask = &__cpu_possible_mask;
EXPORT_SYMBOL(cpu_possible_mask); EXPORT_SYMBOL(cpu_possible_mask);
static struct cpumask __cpu_online_mask __read_mostly; struct cpumask __cpu_online_mask __read_mostly;
EXPORT_SYMBOL(__cpu_online_mask);
const struct cpumask *const cpu_online_mask = &__cpu_online_mask; const struct cpumask *const cpu_online_mask = &__cpu_online_mask;
EXPORT_SYMBOL(cpu_online_mask); EXPORT_SYMBOL(cpu_online_mask);
static struct cpumask __cpu_present_mask __read_mostly; struct cpumask __cpu_present_mask __read_mostly;
EXPORT_SYMBOL(__cpu_present_mask);
const struct cpumask *const cpu_present_mask = &__cpu_present_mask; const struct cpumask *const cpu_present_mask = &__cpu_present_mask;
EXPORT_SYMBOL(cpu_present_mask); EXPORT_SYMBOL(cpu_present_mask);
static struct cpumask __cpu_active_mask __read_mostly; struct cpumask __cpu_active_mask __read_mostly;
EXPORT_SYMBOL(__cpu_active_mask);
const struct cpumask *const cpu_active_mask = &__cpu_active_mask; const struct cpumask *const cpu_active_mask = &__cpu_active_mask;
EXPORT_SYMBOL(cpu_active_mask); EXPORT_SYMBOL(cpu_active_mask);