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smp: Use smp_cond_func_t as type for the conditional function

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Use a typdef for the conditional function instead defining it each time in
the function prototype.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20200117090137.1205765-2-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2020-01-17 10:01:35 +01:00 committed by Thomas Gleixner
parent def9d27807
commit 5671d814db
3 changed files with 16 additions and 18 deletions
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12
include/linux/smp.h
View File

@ -15,6 +15,7 @@
#include <linux/llist.h>
typedef void (*smp_call_func_t)(void *info);
typedef bool (*smp_cond_func_t)(int cpu, void *info);
struct __call_single_data {
struct llist_node llist;
smp_call_func_t func;
@ -49,13 +50,12 @@ void on_each_cpu_mask(const struct cpumask *mask, smp_call_func_t func,
* cond_func returns a positive value. This may include the local
* processor.
*/
void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags);
void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags);
void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags, const struct cpumask *mask);
void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags,
const struct cpumask *mask);
int smp_call_function_single_async(int cpu, call_single_data_t *csd);

11
kernel/smp.c
View File

@ -680,9 +680,9 @@ EXPORT_SYMBOL(on_each_cpu_mask);
* You must not call this function with disabled interrupts or
* from a hardware interrupt handler or from a bottom half handler.
*/
void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags, const struct cpumask *mask)
void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags,
const struct cpumask *mask)
{
cpumask_var_t cpus;
int cpu, ret;
@ -714,9 +714,8 @@ void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
}
EXPORT_SYMBOL(on_each_cpu_cond_mask);
void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags)
void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags)
{
on_each_cpu_cond_mask(cond_func, func, info, wait, gfp_flags,
cpu_online_mask);

11
kernel/up.c
View File

@ -68,9 +68,9 @@ EXPORT_SYMBOL(on_each_cpu_mask);
* Preemption is disabled here to make sure the cond_func is called under the
* same condtions in UP and SMP.
*/
void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags, const struct cpumask *mask)
void on_each_cpu_cond_mask(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags,
const struct cpumask *mask)
{
unsigned long flags;
@ -84,9 +84,8 @@ void on_each_cpu_cond_mask(bool (*cond_func)(int cpu, void *info),
}
EXPORT_SYMBOL(on_each_cpu_cond_mask);
void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
smp_call_func_t func, void *info, bool wait,
gfp_t gfp_flags)
void on_each_cpu_cond(smp_cond_func_t cond_func, smp_call_func_t func,
void *info, bool wait, gfp_t gfp_flags)
{
on_each_cpu_cond_mask(cond_func, func, info, wait, gfp_flags, NULL);
}