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Commit 1d61cf12 authored by Jiang Liu's avatar Jiang Liu Committed by James Hogan
Browse files

smp, metag: kill SMP single function call interrupt 



Commit 9a46ad6d "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt is
needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: default avatarJiang Liu <liuj97@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
parent 5a25f7bb

arch/metag/include/asm/smp.h

+0 −2
Original line number Diff line number Diff line
@@ -7,13 +7,11 @@ 


enum ipi_msg_type {

	IPI_CALL_FUNC,

	IPI_CALL_FUNC_SINGLE,

	IPI_RESCHEDULE,

};



extern void arch_send_call_function_single_ipi(int cpu);

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



asmlinkage void secondary_start_kernel(void);

arch/metag/kernel/smp.c

+1 −5
Original line number Diff line number Diff line
@@ -491,7 +491,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) 


void arch_send_call_function_single_ipi(int cpu)

{

	send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);

	send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);

}



void show_ipi_list(struct seq_file *p)
@@ -545,10 +545,6 @@ static int do_IPI(void) 
			generic_smp_call_function_interrupt();

			break;



		case IPI_CALL_FUNC_SINGLE:

			generic_smp_call_function_single_interrupt();

			break;



		default:

			pr_crit("CPU%u: Unknown IPI message 0x%lx\n",

				cpu, nextmsg);