[lttng-modules.git] / wrapper / spinlock.h

#ifndef _LTTNG_WRAPPER_SPINLOCK_H
#define _LTTNG_WRAPPER_SPINLOCK_H

/*
 * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
 *
 * Dual LGPL v2.1/GPL v2 license.
 */

#include <linux/version.h>

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))

#include <linux/string.h>

#define raw_spin_lock_init(lock)					\
	do {								\
		raw_spinlock_t __lock = __RAW_SPIN_LOCK_UNLOCKED;	\
		memcpy(lock, &__lock, sizeof(lock));			\
	} while (0)

#define raw_spin_is_locked(lock)	__raw_spin_is_locked(lock)


#endif
#endif /* _LTTNG_WRAPPER_SPINLOCK_H */
Commit	Line	Data
a90917c3 MD	1	#ifndef _LTTNG_WRAPPER_SPINLOCK_H
a90917c3 MD	2	#define _LTTNG_WRAPPER_SPINLOCK_H
a181050f MD	3
	4	/*
	5	* Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
	6	*
	7	* Dual LGPL v2.1/GPL v2 license.
	8	*/
	9
	10	#include <linux/version.h>
	11
	12	#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
	13
8e1be6f1 MD	14	#include <linux/string.h>
	15
	16	#define raw_spin_lock_init(lock) \
	17	do { \
	18	raw_spinlock_t __lock = __RAW_SPIN_LOCK_UNLOCKED; \
	19	memcpy(lock, &__lock, sizeof(lock)); \
a181050f MD	20	} while (0)
a181050f MD	21
dce93417	22	#define raw_spin_is_locked(lock) __raw_spin_is_locked(lock)
a181050f MD	23
	24
	25	#endif
a90917c3	26	#endif /* _LTTNG_WRAPPER_SPINLOCK_H */