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[POWERPC] Allow smp_call_function_single() to current cpu

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This removes the requirement for callers to get_cpu() to check in simple
cases.  i386 and x86_64 already received a similar treatment.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Avi Kivity 2007-07-20 01:33:48 +10:00 committed by Paul Mackerras
parent 08ae6cc15d
commit adff093d6c
1 changed files with 6 additions and 1 deletions
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7
arch/powerpc/kernel/smp.c
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@ -284,7 +284,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
int wait) int wait)
{ {
cpumask_t map = CPU_MASK_NONE; cpumask_t map = CPU_MASK_NONE;
int ret = -EBUSY; int ret = 0;
if (!cpu_online(cpu)) if (!cpu_online(cpu))
return -EINVAL; return -EINVAL;
@ -292,6 +292,11 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
cpu_set(cpu, map); cpu_set(cpu, map);
if (cpu != get_cpu()) if (cpu != get_cpu())
ret = smp_call_function_map(func,info,nonatomic,wait,map); ret = smp_call_function_map(func,info,nonatomic,wait,map);
else {
local_irq_disable();
func(info);
local_irq_enable();
}
put_cpu(); put_cpu();
return ret; return ret;
} }