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Commit 81065e4f authored by Rusty Russell's avatar Rusty Russell
Browse files

cpumask: arch_send_call_function_ipi_mask: alpha 



We're weaning the core code off handing cpumask's around on-stack.
This introduces arch_send_call_function_ipi_mask().

We also take the chance to wean the send_ipi_message off the
obsolescent for_each_cpu_mask(): making it take a pointer seemed the
most natural way to do this.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent e50a6f19

arch/alpha/include/asm/smp.h

+2 −1
Original line number Diff line number Diff line
@@ -47,7 +47,8 @@ extern struct cpuinfo_alpha cpu_data[NR_CPUS]; 
extern int smp_num_cpus;



extern void arch_send_call_function_single_ipi(int cpu);

extern void arch_send_call_function_ipi(cpumask_t mask);

extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);

#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask



#else /* CONFIG_SMP */

arch/alpha/kernel/smp.c

+7 −7
Original line number Diff line number Diff line
@@ -548,16 +548,16 @@ setup_profiling_timer(unsigned int multiplier) 




static void

send_ipi_message(cpumask_t to_whom, enum ipi_message_type operation)

send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)

{

	int i;



	mb();

	for_each_cpu_mask(i, to_whom)

	for_each_cpu(i, to_whom)

		set_bit(operation, &ipi_data[i].bits);



	mb();

	for_each_cpu_mask(i, to_whom)

	for_each_cpu(i, to_whom)

		wripir(i);

}
@@ -624,7 +624,7 @@ smp_send_reschedule(int cpu) 
		printk(KERN_WARNING

		       "smp_send_reschedule: Sending IPI to self.\n");

#endif

	send_ipi_message(cpumask_of_cpu(cpu), IPI_RESCHEDULE);

	send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE);

}



void
@@ -636,17 +636,17 @@ smp_send_stop(void) 
	if (hard_smp_processor_id() != boot_cpu_id)

		printk(KERN_WARNING "smp_send_stop: Not on boot cpu.\n");

#endif

	send_ipi_message(to_whom, IPI_CPU_STOP);

	send_ipi_message(&to_whom, IPI_CPU_STOP);

}



void arch_send_call_function_ipi(cpumask_t mask)

void arch_send_call_function_ipi_mask(const struct cpumask *mask)

{

	send_ipi_message(mask, IPI_CALL_FUNC);

}



void arch_send_call_function_single_ipi(int cpu)

{

	send_ipi_message(cpumask_of_cpu(cpu), IPI_CALL_FUNC_SINGLE);

	send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);

}



static void