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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).
*/
#include <linux/spinlock_types_raw.h>
#ifndef CONFIG_PREEMPT_RT
/* Non PREEMPT_RT kernels map spinlock to raw_spinlock */
typedef struct spinlock {
union {
struct raw_spinlock rlock;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
# define LOCK_PADSIZE (offsetof(struct raw_spinlock, dep_map))
struct {
u8 __padding[LOCK_PADSIZE];
struct lockdep_map dep_map;
};
#endif
};
} spinlock_t;
#define ___SPIN_LOCK_INITIALIZER(lockname) \
{ \
.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \
SPIN_DEBUG_INIT(lockname) \
SPIN_DEP_MAP_INIT(lockname) }
#define __SPIN_LOCK_INITIALIZER(lockname) \
{ { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
#define __SPIN_LOCK_UNLOCKED(lockname) \
(spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
#else /* !CONFIG_PREEMPT_RT */
/* PREEMPT_RT kernels map spinlock to rt_mutex */
#include <linux/rtmutex.h>
typedef struct spinlock {
struct rt_mutex_base lock;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
} spinlock_t;
#define __SPIN_LOCK_UNLOCKED(name) \
{ \
.lock = __RT_MUTEX_BASE_INITIALIZER(name.lock), \
SPIN_DEP_MAP_INIT(name) \
}
#define __LOCAL_SPIN_LOCK_UNLOCKED(name) \
{ \
.lock = __RT_MUTEX_BASE_INITIALIZER(name.lock), \
LOCAL_SPIN_DEP_MAP_INIT(name) \
}
#define DEFINE_SPINLOCK(name) \
spinlock_t name = __SPIN_LOCK_UNLOCKED(name)
#endif /* CONFIG_PREEMPT_RT */
#include <linux/rwlock_types.h>
#endif /* __LINUX_SPINLOCK_TYPES_H */
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