include/linux/spinlock_types_up.h

Source file repositories/reference/linux-study-clean/include/linux/spinlock_types_up.h

File Facts

System
Linux kernel
Corpus path
include/linux/spinlock_types_up.h
Extension
.h
Size
732 bytes
Lines
38
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __LINUX_SPINLOCK_TYPES_UP_H
#define __LINUX_SPINLOCK_TYPES_UP_H

#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
# error "Please do not include this file directly."
#endif

/*
 * include/linux/spinlock_types_up.h - spinlock type definitions for UP
 *
 * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
 * Released under the General Public License (GPL).
 */

#ifdef CONFIG_DEBUG_SPINLOCK

typedef struct {
	volatile unsigned int slock;
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED { 1 }

#else

typedef struct { } arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED { }

#endif

typedef struct {
	/* no debug version on UP */
} arch_rwlock_t;

#define __ARCH_RW_LOCK_UNLOCKED { }

#endif /* __LINUX_SPINLOCK_TYPES_UP_H */

Annotation

Implementation Notes