spinlock.h File Reference

#include <linux/smp.h>

Go to the source code of this file.

Macros
#define	arch_spin_is_locked(x)   ((x)->owner_cpu != 0)
#define	arch_spin_unlock_wait(lock)
#define	arch_read_can_lock(x)   ((int)(x)->lock >= 0)
#define	arch_write_can_lock(x)   ((x)->lock == 0)
#define	arch_read_relax(lock)   cpu_relax()
#define	arch_write_relax(lock)   cpu_relax()

Functions
void	arch_spin_lock_wait (arch_spinlock_t *)
void	arch_spin_lock_wait_flags (arch_spinlock_t *, unsigned long flags)
int	arch_spin_trylock_retry (arch_spinlock_t *)
void	arch_spin_relax (arch_spinlock_t *lock)
void	_raw_read_lock_wait (arch_rwlock_t *lp)
void	_raw_read_lock_wait_flags (arch_rwlock_t *lp, unsigned long flags)
int	_raw_read_trylock_retry (arch_rwlock_t *lp)
void	_raw_write_lock_wait (arch_rwlock_t *lp)
void	_raw_write_lock_wait_flags (arch_rwlock_t *lp, unsigned long flags)
int	_raw_write_trylock_retry (arch_rwlock_t *lp)

Variables
int	spin_retry

Macro Definition Documentation

#define arch_read_can_lock

(

x

)

((int)(x)->lock >= 0)

read_can_lock - would read_trylock() succeed? : the rwlock in question.

Definition at line 98 of file spinlock.h.

#define arch_read_relax

(

lock

)

cpu_relax()

Definition at line 173 of file spinlock.h.

#define arch_spin_is_locked

(

x

)

((x)->owner_cpu != 0)

Definition at line 37 of file spinlock.h.

#define arch_spin_unlock_wait

(

lock

)

Value:

do { while (arch_spin_is_locked(lock)) \
         arch_spin_relax(lock); } while (0)

Definition at line 38 of file spinlock.h.

#define arch_write_can_lock

(

x

)

((x)->lock == 0)

write_can_lock - would write_trylock() succeed? : the rwlock in question.

Definition at line 104 of file spinlock.h.

#define arch_write_relax

(

lock

)

cpu_relax()

Definition at line 174 of file spinlock.h.

Function Documentation

void _raw_read_lock_wait

(

arch_rwlock_t *

lp

)

Definition at line 114 of file spinlock.c.

void _raw_read_lock_wait_flags	(	arch_rwlock_t *	lp,
		unsigned long	flags
	)

Definition at line 133 of file spinlock.c.

int _raw_read_trylock_retry

(

arch_rwlock_t *

lp

)

Definition at line 154 of file spinlock.c.

void _raw_write_lock_wait

(

arch_rwlock_t *

lp

)

Definition at line 170 of file spinlock.c.

void _raw_write_lock_wait_flags	(	arch_rwlock_t *	lp,
		unsigned long	flags
	)

Definition at line 187 of file spinlock.c.

int _raw_write_trylock_retry

(

arch_rwlock_t *

lp

)

Definition at line 206 of file spinlock.c.

void arch_spin_lock_wait

(

arch_spinlock_t *

)

Definition at line 27 of file spinlock.c.

void arch_spin_lock_wait_flags	(	arch_spinlock_t *	,
		unsigned long	flags
	)

Definition at line 55 of file spinlock.c.

void arch_spin_relax

(

arch_spinlock_t *

lock

)

Definition at line 103 of file spinlock.c.

int arch_spin_trylock_retry

(

arch_spinlock_t *

)

Definition at line 88 of file spinlock.c.

Variable Documentation

int spin_retry

Definition at line 15 of file spinlock.c.