include/asm-generic/qrwlock_types.h

   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
  11 typedef struct qrwlock {
  12         atomic_t                cnts;
  13         arch_spinlock_t         lock;
  14 } arch_rwlock_t;
  15
  16 #define __ARCH_RW_LOCK_UNLOCKED {               \
  17         .cnts = ATOMIC_INIT(0),                 \
  18         .lock = __ARCH_SPIN_LOCK_UNLOCKED,      \
  19 }
  20
  21 #endif /* __ASM_GENERIC_QRWLOCK_TYPES_H */