kernel/arch/x86/include/asm/qrwlock.h

   1 #ifndef _ASM_X86_QRWLOCK_H
   2 #define _ASM_X86_QRWLOCK_H
   3
   4 #include <asm-generic/qrwlock_types.h>
   5
   6 #ifndef CONFIG_X86_PPRO_FENCE
   7 #define queue_write_unlock queue_write_unlock
   8 static inline void queue_write_unlock(struct qrwlock *lock)
   9 {
  10         barrier();
  11         ACCESS_ONCE(*(u8 *)&lock->cnts) = 0;
  12 }
  13 #endif
  14
  15 #include <asm-generic/qrwlock.h>
  16
  17 #endif /* _ASM_X86_QRWLOCK_H */