arch/mips/include/asm/spinlock.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/spinlock.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/spinlock.h
Extension
.h
Size
822 bytes
Lines
32
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_SPINLOCK_H
#define _ASM_SPINLOCK_H

#include <asm/processor.h>

#include <asm-generic/qspinlock_types.h>

#define	queued_spin_unlock queued_spin_unlock
/**
 * queued_spin_unlock - release a queued spinlock
 * @lock : Pointer to queued spinlock structure
 */
static inline void queued_spin_unlock(struct qspinlock *lock)
{
	/* This could be optimised with ARCH_HAS_MMIOWB */
	mmiowb();
	smp_store_release(&lock->locked, 0);
}

#include <asm/qspinlock.h>
#include <asm/qrwlock.h>

#endif /* _ASM_SPINLOCK_H */

Annotation

Implementation Notes