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authorAvi Kivity <avi@qumranet.com>2007-07-20 01:33:48 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-22 21:30:58 +1000
commitadff093d6c545c882f1503607f6af14ddd90bb89 (patch)
tree8d821e6de3ef05cdcbb784a1493a91b5bc8e5dd6
parent08ae6cc15db201fa20cc4893d9500c1f6b20e560 (diff)
[POWERPC] Allow smp_call_function_single() to current cpu
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>
-rw-r--r--arch/powerpc/kernel/smp.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index d577b71db37..087c92f2a3e 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -284,7 +284,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
int wait)
{
cpumask_t map = CPU_MASK_NONE;
- int ret = -EBUSY;
+ int ret = 0;
if (!cpu_online(cpu))
return -EINVAL;
@@ -292,6 +292,11 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int
cpu_set(cpu, map);
if (cpu != get_cpu())
ret = smp_call_function_map(func,info,nonatomic,wait,map);
+ else {
+ local_irq_disable();
+ func(info);
+ local_irq_enable();
+ }
put_cpu();
return ret;
}