LXR linux/include/asm-generic/qrwlock

   1#ifndef __ASM_GENERIC_QRWLOCK_TYPES_H
   2#define __ASM_GENERIC_QRWLOCK_TYPES_H
   3
   4#include <linux/types.h>
   5#include <asm/spinlock_types.h>
   6
   7/*
   8 * The queue read/write lock data structure
   9 */
  10
  11typedef struct qrwlock {
  12        atomic_t                cnts;
  13        arch_spinlock_t         wait_lock;
  14} arch_rwlock_t;
  15
  16#define __ARCH_RW_LOCK_UNLOCKED {               \
  17        .cnts = ATOMIC_INIT(0),                 \
  18        .wait_lock = __ARCH_SPIN_LOCK_UNLOCKED, \
  19}
  20
  21#endif /* __ASM_GENERIC_QRWLOCK_TYPES_H */
  22