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authorIngo Molnar <mingo@elte.hu>2009-01-20 09:23:28 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-20 09:23:28 +0100
commit0ce1c383681370964e7f77dd44506aeb3a6ba657 (patch)
tree75aa590c636feed7d110c03eddb56cc518fc034c /kernel/up.c
parent0a2a18b721abc960fbcada406746877d22340a60 (diff)
parent1de9e8e70f5acc441550ca75433563d91b269bbe (diff)
downloadblackbird-op-linux-0ce1c383681370964e7f77dd44506aeb3a6ba657.tar.gz
blackbird-op-linux-0ce1c383681370964e7f77dd44506aeb3a6ba657.zip
Merge commit 'v2.6.29-rc2' into x86/mm
Diffstat (limited to 'kernel/up.c')
-rw-r--r--kernel/up.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/up.c b/kernel/up.c
new file mode 100644
index 000000000000..1ff27a28bb7d
--- /dev/null
+++ b/kernel/up.c
@@ -0,0 +1,21 @@
+/*
+ * Uniprocessor-only support functions. The counterpart to kernel/smp.c
+ */
+
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/smp.h>
+
+int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+ int wait)
+{
+ WARN_ON(cpu != 0);
+
+ local_irq_disable();
+ (func)(info);
+ local_irq_enable();
+
+ return 0;
+}
+EXPORT_SYMBOL(smp_call_function_single);
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