Typedef SMP call function pointer (3a5f65df) · Commits · 戴 / test

include/linux/smp.h

+10 −9

Original line number	Diff line number	Diff line
		@@ -13,9 +13,10 @@

		extern void cpu_idle(void);

		typedef void (smp_call_func_t)(void info);
		struct call_single_data {
		struct list_head list;
		void (func) (void info);
		smp_call_func_t func;
		void *info;
		u16 flags;
		u16 priv;
		@@ -24,7 +25,7 @@ struct call_single_data {
		/* total number of cpus in this system (may exceed NR_CPUS) */
		extern unsigned int total_cpus;

		int smp_call_function_single(int cpuid, void (func) (void info), void *info,
		int smp_call_function_single(int cpuid, smp_call_func_t func, void *info,
		int wait);

		#ifdef CONFIG_SMP
		@@ -69,15 +70,15 @@ extern void smp_cpus_done(unsigned int max_cpus);
		/*
		* Call a function on all other processors
		*/
		int smp_call_function(void(func)(void info), void *info, int wait);
		int smp_call_function(smp_call_func_t func, void *info, int wait);
		void smp_call_function_many(const struct cpumask *mask,
		void (func)(void info), void *info, bool wait);
		smp_call_func_t func, void *info, bool wait);

		void __smp_call_function_single(int cpuid, struct call_single_data *data,
		int wait);

		int smp_call_function_any(const struct cpumask *mask,
		void (func)(void info), void *info, int wait);
		smp_call_func_t func, void *info, int wait);

		/*
		* Generic and arch helpers
		@@ -94,7 +95,7 @@ void ipi_call_unlock_irq(void);
		/*
		* Call a function on all processors
		*/
		int on_each_cpu(void (func) (void info), void *info, int wait);
		int on_each_cpu(smp_call_func_t func, void *info, int wait);

		#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */
		#define MSG_ALL 0x8001
		@@ -122,7 +123,7 @@ static inline void smp_send_stop(void) { }
		* These macros fold the SMP functionality into a single CPU system
		*/
		#define raw_smp_processor_id() 0
		static inline int up_smp_call_function(void (func)(void ), void *info)
		static inline int up_smp_call_function(smp_call_func_t func, void *info)
		{
		return 0;
		}
		@@ -143,7 +144,7 @@ static inline void smp_send_reschedule(int cpu) { }
		static inline void init_call_single_data(void) { }

		static inline int
		smp_call_function_any(const struct cpumask mask, void (func)(void *info),
		smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
		void *info, int wait)
		{
		return smp_call_function_single(0, func, info, wait);

kernel/smp.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -267,7 +267,7 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_single_data, csd_data);
		*
		* Returns 0 on success, else a negative status code.
		*/
		int smp_call_function_single(int cpu, void (func) (void info), void *info,
		int smp_call_function_single(int cpu, smp_call_func_t func, void *info,
		int wait)
		{
		struct call_single_data d = {
		@@ -336,7 +336,7 @@ EXPORT_SYMBOL(smp_call_function_single);
		* 3) any other online cpu in @mask
		*/
		int smp_call_function_any(const struct cpumask *mask,
		void (func)(void info), void *info, int wait)
		smp_call_func_t func, void *info, int wait)
		{
		unsigned int cpu;
		const struct cpumask *nodemask;
		@@ -416,7 +416,7 @@ void __smp_call_function_single(int cpu, struct call_single_data *data,
		* must be disabled when calling this function.
		*/
		void smp_call_function_many(const struct cpumask *mask,
		void (func)(void ), void *info, bool wait)
		smp_call_func_t func, void *info, bool wait)
		{
		struct call_function_data *data;
		unsigned long flags;
		@@ -500,7 +500,7 @@ EXPORT_SYMBOL(smp_call_function_many);
		* You must not call this function with disabled interrupts or from a
		* hardware interrupt handler or from a bottom half handler.
		*/
		int smp_call_function(void (func)(void ), void *info, int wait)
		int smp_call_function(smp_call_func_t func, void *info, int wait)
		{
		preempt_disable();
		smp_call_function_many(cpu_online_mask, func, info, wait);

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