aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/smp.h
diff options
context:
space:
mode:
authorAvi Kivity <avi@qumranet.com>2007-07-09 10:11:49 -0400
committerAvi Kivity <avi@qumranet.com>2007-07-16 05:05:50 -0400
commita52b1752c077cb919b71167c54968a0b91673281 (patch)
tree0305330faac81f946d7722ff6103a08385d19075 /include/linux/smp.h
parentde489353918139161eee241a6224d67f22bfd024 (diff)
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 <ak@suse.de> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/smp.h')
-rw-r--r--include/linux/smp.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 96ac21f8dd73..8039daced688 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -7,6 +7,7 @@
7 */ 7 */
8 8
9#include <linux/errno.h> 9#include <linux/errno.h>
10#include <asm/system.h>
10 11
11extern void cpu_idle(void); 12extern void cpu_idle(void);
12 13
@@ -102,7 +103,11 @@ static inline void smp_send_reschedule(int cpu) { }
102static inline int smp_call_function_single(int cpuid, void (*func) (void *info), 103static inline int smp_call_function_single(int cpuid, void (*func) (void *info),
103 void *info, int retry, int wait) 104 void *info, int retry, int wait)
104{ 105{
105 return -EBUSY; 106 WARN_ON(cpuid != 0);
107 local_irq_disable();
108 func(info);
109 local_irq_enable();
110 return 0;
106} 111}
107 112
108#endif /* !SMP */ 113#endif /* !SMP */