File: /usr/src/linux/include/asm-alpha/softirq.h

1     #ifndef _ALPHA_SOFTIRQ_H
2     #define _ALPHA_SOFTIRQ_H
3     
4     #include <linux/stddef.h>
5     #include <asm/atomic.h>
6     #include <asm/hardirq.h>
7     
8     extern inline void cpu_bh_disable(int cpu)
9     {
10     	local_bh_count(cpu)++;
11     	barrier();
12     }
13     
14     extern inline void __cpu_bh_enable(int cpu)
15     {
16     	barrier();
17     	local_bh_count(cpu)--;
18     }
19     
20     #define __local_bh_enable()	__cpu_bh_enable(smp_processor_id())
21     #define local_bh_disable()	cpu_bh_disable(smp_processor_id())
22     
23     #define local_bh_enable()					\
24     do {								\
25     	int cpu;						\
26     								\
27     	barrier();						\
28     	cpu = smp_processor_id();				\
29     	if (!--local_bh_count(cpu) && softirq_pending(cpu))	\
30     		do_softirq();					\
31     } while (0)
32     
33     #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
34     
35     #endif /* _ALPHA_SOFTIRQ_H */
36