Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a52b1752c077cb919b71167c54968a0b91673281
Commit: a52b1752c077cb919b71167c54968a0b91673281
Parent: de489353918139161eee241a6224d67f22bfd024
Author: Avi Kivity <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 9 17:11:49 2007 +0300
Committer: Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 12:05:50 2007 +0300
SMP: Allow smp_call_function_single() to current cpu
This removes the requirement for callers to get_cpu() to check in simple
cases. This patch is for !CONFIG_SMP.
Cc: Andi Kleen <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
include/linux/smp.h | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 96ac21f..8039dac 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -7,6 +7,7 @@
*/
#include <linux/errno.h>
+#include <asm/system.h>
extern void cpu_idle(void);
@@ -102,7 +103,11 @@ static inline void smp_send_reschedule(int cpu) { }
static inline int smp_call_function_single(int cpuid, void (*func) (void
*info),
void *info, int retry, int wait)
{
- return -EBUSY;
+ WARN_ON(cpuid != 0);
+ local_irq_disable();
+ func(info);
+ local_irq_enable();
+ return 0;
}
#endif /* !SMP */
-
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