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Release 4.7 include/linux/spinlock_types.h

Directory: include/linux
#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 {
	
arch_spinlock_t raw_lock;
#ifdef CONFIG_GENERIC_LOCKBREAK
	
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
} 
raw_spinlock_t;


#define SPINLOCK_MAGIC		0xdead4ead


#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_SPINLOCK

# define SPIN_DEBUG_INIT(lockname)		\
	.magic = SPINLOCK_MAGIC,                \
        .owner_cpu = -1,                        \
        .owner = SPINLOCK_OWNER_INIT,
#else

# define SPIN_DEBUG_INIT(lockname)
#endif


#define __RAW_SPIN_LOCK_INITIALIZER(lockname)	\
	{                                       \
        .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,  \
        SPIN_DEBUG_INIT(lockname)               \
        SPIN_DEP_MAP_INIT(lockname) }


#define __RAW_SPIN_LOCK_UNLOCKED(lockname)	\
	(raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname)


#define DEFINE_RAW_SPINLOCK(x)	raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x)


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) \
	{ { .rlock = __RAW_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)

#include <linux/rwlock_types.h>

#endif /* __LINUX_SPINLOCK_TYPES_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
ingo molnaringo molnar11655.77%337.50%
thomas gleixnerthomas gleixner8641.35%337.50%
peter zijlstrapeter zijlstra31.44%112.50%
nick pigginnick piggin31.44%112.50%
Total208100.00%8100.00%
Directory: include/linux
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