aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/smp.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/smp.h')
-rw-r--r--include/linux/smp.h23
1 files changed, 9 insertions, 14 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 44153fdf73fc..d699a16b0cb2 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -52,23 +52,12 @@ extern void smp_cpus_done(unsigned int max_cpus);
52/* 52/*
53 * Call a function on all other processors 53 * Call a function on all other processors
54 */ 54 */
55extern int smp_call_function (void (*func) (void *info), void *info, 55int smp_call_function(void(*func)(void *info), void *info, int retry, int wait);
56 int retry, int wait);
57 56
58/* 57/*
59 * Call a function on all processors 58 * Call a function on all processors
60 */ 59 */
61static inline int on_each_cpu(void (*func) (void *info), void *info, 60int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait);
62 int retry, int wait)
63{
64 int ret = 0;
65
66 preempt_disable();
67 ret = smp_call_function(func, info, retry, wait);
68 func(info);
69 preempt_enable();
70 return ret;
71}
72 61
73#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */ 62#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */
74#define MSG_ALL 0x8001 63#define MSG_ALL 0x8001
@@ -94,7 +83,13 @@ void smp_prepare_boot_cpu(void);
94#define raw_smp_processor_id() 0 83#define raw_smp_processor_id() 0
95#define hard_smp_processor_id() 0 84#define hard_smp_processor_id() 0
96#define smp_call_function(func,info,retry,wait) ({ 0; }) 85#define smp_call_function(func,info,retry,wait) ({ 0; })
97#define on_each_cpu(func,info,retry,wait) ({ func(info); 0; }) 86#define on_each_cpu(func,info,retry,wait) \
87 ({ \
88 local_irq_disable(); \
89 func(info); \
90 local_irq_enable(); \
91 0; \
92 })
98static inline void smp_send_reschedule(int cpu) { } 93static inline void smp_send_reschedule(int cpu) { }
99#define num_booting_cpus() 1 94#define num_booting_cpus() 1
100#define smp_prepare_boot_cpu() do {} while (0) 95#define smp_prepare_boot_cpu() do {} while (0)