diff options
| author |   Avi Kivity <avi@qumranet.com> | 2007-07-20 01:33:48 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-07-22 21:30:58 +1000 |
| commit | adff093d6c545c882f1503607f6af14ddd90bb89 (patch) | |
| tree | 8d821e6de3ef05cdcbb784a1493a91b5bc8e5dd6 /arch/powerpc/kernel/smp.c | |
| parent | [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC (diff) | |
| download | linux-dev-adff093d6c545c882f1503607f6af14ddd90bb89.tar.xz linux-dev-adff093d6c545c882f1503607f6af14ddd90bb89.zip | |
[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>
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index d577b71db375..087c92f2a3eb 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; } |