include/linux/spinlock_types_raw.h
Source file repositories/reference/linux-study-clean/include/linux/spinlock_types_raw.h
File Facts
- System
- Linux kernel
- Corpus path
include/linux/spinlock_types_raw.h- Extension
.h- Size
- 1761 bytes
- Lines
- 75
- 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.
- Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/types.hasm/spinlock_types.hlinux/spinlock_types_up.hlinux/lockdep_types.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
#define __LINUX_SPINLOCK_TYPES_RAW_H
#include <linux/types.h>
#if defined(CONFIG_SMP)
# include <asm/spinlock_types.h>
#else
# include <linux/spinlock_types_up.h>
#endif
#include <linux/lockdep_types.h>
context_lock_struct(raw_spinlock) {
arch_spinlock_t raw_lock;
#ifdef CONFIG_DEBUG_SPINLOCK
unsigned int magic, owner_cpu;
void *owner;
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
};
typedef struct raw_spinlock raw_spinlock_t;
#define SPINLOCK_MAGIC 0xdead4ead
#define SPINLOCK_OWNER_INIT ((void *)-1L)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
# define RAW_SPIN_DEP_MAP_INIT(lockname) \
.dep_map = { \
.name = #lockname, \
.wait_type_inner = LD_WAIT_SPIN, \
}
# define SPIN_DEP_MAP_INIT(lockname) \
.dep_map = { \
.name = #lockname, \
.wait_type_inner = LD_WAIT_CONFIG, \
}
# define LOCAL_SPIN_DEP_MAP_INIT(lockname) \
.dep_map = { \
.name = #lockname, \
.wait_type_inner = LD_WAIT_CONFIG, \
.lock_type = LD_LOCK_PERCPU, \
}
#else
# define RAW_SPIN_DEP_MAP_INIT(lockname)
# define SPIN_DEP_MAP_INIT(lockname)
# define LOCAL_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) \
RAW_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)
#endif /* __LINUX_SPINLOCK_TYPES_RAW_H */
Annotation
- Immediate include surface: `linux/types.h`, `asm/spinlock_types.h`, `linux/spinlock_types_up.h`, `linux/lockdep_types.h`.
- Atlas domain: Core OS / Core Kernel Interface.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.