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authorAvi Kivity <avi@qumranet.com>2007-07-19 18:32:43 +0300
committerTony Luck <tony.luck@intel.com>2007-07-30 16:26:45 -0700
commit8a2d8693054a6cd86cc959576322b30e66e31208 (patch)
tree7aeb38a7dbaba8ee78289450b650504a5cc7fe61 /arch/ia64
parent056e6d89aab51babaa5f75c16832b19c55a68bc4 (diff)
downloadop-kernel-dev-8a2d8693054a6cd86cc959576322b30e66e31208.zip
op-kernel-dev-8a2d8693054a6cd86cc959576322b30e66e31208.tar.gz
[IA64] 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: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/smp.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 0982882..4e446aa 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -346,7 +346,7 @@ smp_flush_tlb_mm (struct mm_struct *mm)
}
/*
- * Run a function on another CPU
+ * Run a function on a specific CPU
* <func> The function to run. This must be fast and non-blocking.
* <info> An arbitrary pointer to pass to the function.
* <nonatomic> Currently unused.
@@ -366,9 +366,11 @@ smp_call_function_single (int cpuid, void (*func) (void *info), void *info, int
int me = get_cpu(); /* prevent preemption and reschedule on another processor */
if (cpuid == me) {
- printk(KERN_INFO "%s: trying to call self\n", __FUNCTION__);
+ local_irq_disable();
+ func(info);
+ local_irq_enable();
put_cpu();
- return -EBUSY;
+ return 0;
}
data.func = func;
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