spinlock_types_raw.h (1726B)
1#ifndef __LINUX_SPINLOCK_TYPES_RAW_H 2#define __LINUX_SPINLOCK_TYPES_RAW_H 3 4#include <linux/types.h> 5 6#if defined(CONFIG_SMP) 7# include <asm/spinlock_types.h> 8#else 9# include <linux/spinlock_types_up.h> 10#endif 11 12#include <linux/lockdep_types.h> 13 14typedef struct raw_spinlock { 15 arch_spinlock_t raw_lock; 16#ifdef CONFIG_DEBUG_SPINLOCK 17 unsigned int magic, owner_cpu; 18 void *owner; 19#endif 20#ifdef CONFIG_DEBUG_LOCK_ALLOC 21 struct lockdep_map dep_map; 22#endif 23} raw_spinlock_t; 24 25#define SPINLOCK_MAGIC 0xdead4ead 26 27#define SPINLOCK_OWNER_INIT ((void *)-1L) 28 29#ifdef CONFIG_DEBUG_LOCK_ALLOC 30# define RAW_SPIN_DEP_MAP_INIT(lockname) \ 31 .dep_map = { \ 32 .name = #lockname, \ 33 .wait_type_inner = LD_WAIT_SPIN, \ 34 } 35# define SPIN_DEP_MAP_INIT(lockname) \ 36 .dep_map = { \ 37 .name = #lockname, \ 38 .wait_type_inner = LD_WAIT_CONFIG, \ 39 } 40 41# define LOCAL_SPIN_DEP_MAP_INIT(lockname) \ 42 .dep_map = { \ 43 .name = #lockname, \ 44 .wait_type_inner = LD_WAIT_CONFIG, \ 45 .lock_type = LD_LOCK_PERCPU, \ 46 } 47#else 48# define RAW_SPIN_DEP_MAP_INIT(lockname) 49# define SPIN_DEP_MAP_INIT(lockname) 50# define LOCAL_SPIN_DEP_MAP_INIT(lockname) 51#endif 52 53#ifdef CONFIG_DEBUG_SPINLOCK 54# define SPIN_DEBUG_INIT(lockname) \ 55 .magic = SPINLOCK_MAGIC, \ 56 .owner_cpu = -1, \ 57 .owner = SPINLOCK_OWNER_INIT, 58#else 59# define SPIN_DEBUG_INIT(lockname) 60#endif 61 62#define __RAW_SPIN_LOCK_INITIALIZER(lockname) \ 63{ \ 64 .raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ 65 SPIN_DEBUG_INIT(lockname) \ 66 RAW_SPIN_DEP_MAP_INIT(lockname) } 67 68#define __RAW_SPIN_LOCK_UNLOCKED(lockname) \ 69 (raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname) 70 71#define DEFINE_RAW_SPINLOCK(x) raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x) 72 73#endif /* __LINUX_SPINLOCK_TYPES_RAW_H */