Messages in this thread Patch in this message | | | From | Rasmus Villemoes <> | Subject | [PATCH v2, resend 3/6] kernel/cpu.c: export __cpu_*_mask | Date | Mon, 23 Nov 2015 20:51:37 +0100 |
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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.
Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> --- include/linux/cpumask.h | 4 ++++ kernel/cpu.c | 14 +++++++++----- 2 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 59915ea5373c..d4545a1852f2 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -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_present_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 #define num_online_cpus() cpumask_weight(cpu_online_mask) diff --git a/kernel/cpu.c b/kernel/cpu.c index 6a96b713cea7..35d1d45be8e9 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -759,23 +759,27 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL; EXPORT_SYMBOL(cpu_all_bits); #ifdef CONFIG_INIT_ALL_POSSIBLE -static struct cpumask __cpu_possible_mask __read_mostly +struct cpumask __cpu_possible_mask __read_mostly = {CPU_BITS_ALL}; #else -static struct cpumask __cpu_possible_mask __read_mostly; +struct cpumask __cpu_possible_mask __read_mostly; #endif +EXPORT_SYMBOL(__cpu_possible_mask); const struct cpumask *const cpu_possible_mask = &__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; 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; 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; EXPORT_SYMBOL(cpu_active_mask); -- 2.6.1
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