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#ifndef __LINUX_SPINLOCK_TYPES_H
#define __LINUX_SPINLOCK_TYPES_H
/*
* include/linux/spinlock_types.h - generic spinlock type definitions
* and initializers
*
* portions Copyright 2005, Red Hat, Inc., Ingo Molnar
* Released under the General Public License (GPL).
*/
#if defined(CONFIG_SMP)
# include <asm/spinlock_types.h>
#else
# include <linux/spinlock_types_up.h>
#endif
#include <linux/lockdep.h>
typedef struct {
raw_spinlock_t raw_lock;
#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
unsigned int break_lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
unsigned int magic, owner_cpu;
void *owner;
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
} spinlock_t;
#define SPINLOCK_MAGIC 0xdead4ead
typedef struct {
raw_rwlock_t raw_lock;
#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
unsigned int break_lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
unsigned int magic, owner_cpu;
void *owner;
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
} rwlock_t;
#define RWLOCK_MAGIC 0xdeaf1eed
#define SPINLOCK_OWNER_INIT ((void *)-1L)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
# define SPIN_DEP_MAP_INIT(lockname) .dep_map = { .name = #lockname }
#else
# define SPIN_DEP_MAP_INIT(lockname)
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
# define RW_DEP_MAP_INIT(lockname) .dep_map = { .name = #lockname }
#else
# define RW_DEP_MAP_INIT(lockname)
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
# define __SPIN_LOCK_UNLOCKED(lockname) \
(spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED, \
.magic = SPINLOCK_MAGIC, \
.owner = SPINLOCK_OWNER_INIT, \
.owner_cpu = -1, \
SPIN_DEP_MAP_INIT(lockname) }
#define __RW_LOCK_UNLOCKED(lockname) \
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \
.magic = RWLOCK_MAGIC, \
.owner = SPINLOCK_OWNER_INIT, \
.owner_cpu = -1, \
RW_DEP_MAP_INIT(lockname) }
#else
# define __SPIN_LOCK_UNLOCKED(lockname) \
(spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED, \
SPIN_DEP_MAP_INIT(lockname) }
#define __RW_LOCK_UNLOCKED(lockname) \
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \
RW_DEP_MAP_INIT(lockname) }
#endif
/*
* SPIN_LOCK_UNLOCKED and RW_LOCK_UNLOCKED defeat lockdep state tracking and
* are hence deprecated.
* Please use DEFINE_SPINLOCK()/DEFINE_RWLOCK() or
* __SPIN_LOCK_UNLOCKED()/__RW_LOCK_UNLOCKED() as appropriate.
*/
#define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
#define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init)
#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
#define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x)
#endif /* __LINUX_SPINLOCK_TYPES_H */
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