arch/arm/include/asm/spinlock_types.h

   1 #ifndef __ASM_SPINLOCK_TYPES_H
   2 #define __ASM_SPINLOCK_TYPES_H
   3
   4 #ifndef __LINUX_SPINLOCK_TYPES_H
   5 # error "please don't include this file directly"
   6 #endif
   7
   8 #define TICKET_SHIFT    16
   9
  10 typedef struct {
  11         union {
  12                 u32 slock;
  13                 struct __raw_tickets {
  14 #ifdef __ARMEB__
  15                         u16 next;
  16                         u16 owner;
  17 #else
  18                         u16 owner;
  19                         u16 next;
  20 #endif
  21                 } tickets;
  22         };
  23 } arch_spinlock_t;
  24
  25 #define __ARCH_SPIN_LOCK_UNLOCKED       { { 0 } }
  26
  27 typedef struct {
  28         u32 lock;
  29 } arch_rwlock_t;
  30
  31 #define __ARCH_RW_LOCK_UNLOCKED         { 0 }
  32
  33 #endif