include/linux/bottom_half.h

   1 #ifndef _LINUX_BH_H
   2 #define _LINUX_BH_H
   3
   4 #include <linux/preempt.h>
   5
   6 #ifdef CONFIG_TRACE_IRQFLAGS
   7 extern void __local_bh_disable_ip(unsigned long ip, unsigned int cnt);
   8 #else
   9 static __always_inline void __local_bh_disable_ip(unsigned long ip, unsigned int cnt)
  10 {
  11         preempt_count_add(cnt);
  12         barrier();
  13 }
  14 #endif
  15
  16 static inline void local_bh_disable(void)
  17 {
  18         __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
  19 }
  20
  21 extern void _local_bh_enable(void);
  22 extern void __local_bh_enable_ip(unsigned long ip, unsigned int cnt);
  23
  24 static inline void local_bh_enable_ip(unsigned long ip)
  25 {
  26         __local_bh_enable_ip(ip, SOFTIRQ_DISABLE_OFFSET);
  27 }
  28
  29 static inline void local_bh_enable(void)
  30 {
  31         __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
  32 }
  33
  34 #endif /* _LINUX_BH_H */