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kernel/cpu.c: make set_cpu_* static inlines 

Almost all callers of the set_cpu_* functions pass an explicit true or
false.  Making them static inline thus replaces the function calls with a
simple set_bit/clear_bit, saving some .text.

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 15:00:28 -08:00 committed by Linus Torvalds
parent 5aec01b834
commit 9425676a36
2 changed files with 39 additions and 38 deletions
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43
include/linux/cpumask.h
View File

@ -720,14 +720,49 @@ extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS);
#define for_each_present_cpu(cpu) for_each_cpu((cpu), cpu_present_mask) #define for_each_present_cpu(cpu) for_each_cpu((cpu), cpu_present_mask)
/* Wrappers for arch boot code to manipulate normally-constant masks */ /* Wrappers for arch boot code to manipulate normally-constant masks */
void set_cpu_possible(unsigned int cpu, bool possible);
void set_cpu_present(unsigned int cpu, bool present);
void set_cpu_online(unsigned int cpu, bool online);
void set_cpu_active(unsigned int cpu, bool active);
void init_cpu_present(const struct cpumask *src); void init_cpu_present(const struct cpumask *src);
void init_cpu_possible(const struct cpumask *src); void init_cpu_possible(const struct cpumask *src);
void init_cpu_online(const struct cpumask *src); void init_cpu_online(const struct cpumask *src);
static inline void
set_cpu_possible(unsigned int cpu, bool possible)
{
if (possible)
cpumask_set_cpu(cpu, &__cpu_possible_mask);
else
cpumask_clear_cpu(cpu, &__cpu_possible_mask);
}
static inline void
set_cpu_present(unsigned int cpu, bool present)
{
if (present)
cpumask_set_cpu(cpu, &__cpu_present_mask);
else
cpumask_clear_cpu(cpu, &__cpu_present_mask);
}
static inline void
set_cpu_online(unsigned int cpu, bool online)
{
if (online) {
cpumask_set_cpu(cpu, &__cpu_online_mask);
cpumask_set_cpu(cpu, &__cpu_active_mask);
} else {
cpumask_clear_cpu(cpu, &__cpu_online_mask);
}
}
static inline void
set_cpu_active(unsigned int cpu, bool active)
{
if (active)
cpumask_set_cpu(cpu, &__cpu_active_mask);
else
cpumask_clear_cpu(cpu, &__cpu_active_mask);
}
/** /**
* to_cpumask - convert an NR_CPUS bitmap to a struct cpumask * * to_cpumask - convert an NR_CPUS bitmap to a struct cpumask *
* @bitmap: the bitmap * @bitmap: the bitmap

34
kernel/cpu.c
View File

@ -775,40 +775,6 @@ EXPORT_SYMBOL(__cpu_present_mask);
struct cpumask __cpu_active_mask __read_mostly; struct cpumask __cpu_active_mask __read_mostly;
EXPORT_SYMBOL(__cpu_active_mask); EXPORT_SYMBOL(__cpu_active_mask);
void set_cpu_possible(unsigned int cpu, bool possible)
{
if (possible)
cpumask_set_cpu(cpu, &__cpu_possible_mask);
else
cpumask_clear_cpu(cpu, &__cpu_possible_mask);
}
void set_cpu_present(unsigned int cpu, bool present)
{
if (present)
cpumask_set_cpu(cpu, &__cpu_present_mask);
else
cpumask_clear_cpu(cpu, &__cpu_present_mask);
}
void set_cpu_online(unsigned int cpu, bool online)
{
if (online) {
cpumask_set_cpu(cpu, &__cpu_online_mask);
cpumask_set_cpu(cpu, &__cpu_active_mask);
} else {
cpumask_clear_cpu(cpu, &__cpu_online_mask);
}
}
void set_cpu_active(unsigned int cpu, bool active)
{
if (active)
cpumask_set_cpu(cpu, &__cpu_active_mask);
else
cpumask_clear_cpu(cpu, &__cpu_active_mask);
}
void init_cpu_present(const struct cpumask *src) void init_cpu_present(const struct cpumask *src)
{ {
cpumask_copy(&__cpu_present_mask, src); cpumask_copy(&__cpu_present_mask, src);