https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: 4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 authored by Linus Torvalds on 16 April 2017, 20:00:18 UTC
Linux 4.11-rc7
Linux 4.11-rc7
Tip revision: 4f7d029
spinlock_types.h
#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 */