spinlock_64.h File Reference

Go to the source code of this file.

Macros
#define	arch_spin_is_locked(lp)   ((lp)->lock != 0)
#define	arch_spin_unlock_wait(lp)
#define	arch_read_lock_flags(p, f)   arch_read_lock(p)
#define	arch_write_lock_flags(p, f)   arch_write_lock(p)
#define	arch_read_can_lock(rw)   (!((rw)->lock & 0x80000000UL))
#define	arch_write_can_lock(rw)   (!(rw)->lock)
#define	arch_spin_relax(lock)   cpu_relax()
#define	arch_read_relax(lock)   cpu_relax()
#define	arch_write_relax(lock)   cpu_relax()

Macro Definition Documentation

#define arch_read_can_lock

(

rw

)

(!((rw)->lock & 0x80000000UL))

Definition at line 216 of file spinlock_64.h.

#define arch_read_lock_flags	(		p,
			f
	)		arch_read_lock(p)

Definition at line 213 of file spinlock_64.h.

#define arch_read_relax

(

lock

)

cpu_relax()

Definition at line 220 of file spinlock_64.h.

#define arch_spin_is_locked

(

lp

)

((lp)->lock != 0)

Definition at line 24 of file spinlock_64.h.

#define arch_spin_relax

(

lock

)

cpu_relax()

Definition at line 219 of file spinlock_64.h.

#define arch_spin_unlock_wait

(

lp

)

Value:

do {    rmb();          \
    } while((lp)->lock)

Definition at line 26 of file spinlock_64.h.

#define arch_write_can_lock

(

rw

)

(!(rw)->lock)

Definition at line 217 of file spinlock_64.h.

#define arch_write_lock_flags	(		p,
			f
	)		arch_write_lock(p)

Definition at line 214 of file spinlock_64.h.

#define arch_write_relax

(

lock

)

cpu_relax()

Definition at line 221 of file spinlock_64.h.