aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/up.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-01-16 04:09:10 -0500
committerIngo Molnar <mingo@elte.hu>2009-01-16 04:09:10 -0500
commitaf2519fb2298cdf7540082c36f4d8c66bbff103f (patch)
tree1d290d28d42d42f9e693457762c4008988628060 /kernel/up.c
parent961d7d0ee5150e0197cc81c2a8884ecb230276e2 (diff)
parent7cb36b6ccdca03bd87e8faca7fd920643dd1aec7 (diff)
Merge branch 'linus' into core/iommu
Conflicts: arch/ia64/include/asm/dma-mapping.h arch/ia64/include/asm/machvec.h arch/ia64/include/asm/machvec_sn2.h
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 @@
1/*
2 * Uniprocessor-only support functions. The counterpart to kernel/smp.c
3 */
4
5#include <linux/interrupt.h>
6#include <linux/kernel.h>
7#include <linux/module.h>
8#include <linux/smp.h>
9
10int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
11 int wait)
12{
13 WARN_ON(cpu != 0);
14
15 local_irq_disable();
16 (func)(info);
17 local_irq_enable();
18
19 return 0;
20}
21EXPORT_SYMBOL(smp_call_function_single);