17,8 → 17,8 |
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#include <linux/lockdep.h> |
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typedef struct spinlock { |
raw_spinlock_t raw_lock; |
typedef struct raw_spinlock { |
arch_spinlock_t raw_lock; |
#ifdef CONFIG_GENERIC_LOCKBREAK |
unsigned int break_lock; |
#endif |
29,26 → 29,10 |
#ifdef CONFIG_DEBUG_LOCK_ALLOC |
struct lockdep_map dep_map; |
#endif |
} spinlock_t; |
} raw_spinlock_t; |
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#define SPINLOCK_MAGIC 0xdead4ead |
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typedef struct { |
raw_rwlock_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 |
} rwlock_t; |
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#define RWLOCK_MAGIC 0xdeaf1eed |
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#define SPINLOCK_OWNER_INIT ((void *)-1L) |
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#ifdef CONFIG_DEBUG_LOCK_ALLOC |
57,44 → 41,48 |
# define SPIN_DEP_MAP_INIT(lockname) |
#endif |
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#ifdef CONFIG_DEBUG_LOCK_ALLOC |
# define RW_DEP_MAP_INIT(lockname) .dep_map = { .name = #lockname } |
#else |
# define RW_DEP_MAP_INIT(lockname) |
#endif |
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#ifdef CONFIG_DEBUG_SPINLOCK |
# define __SPIN_LOCK_UNLOCKED(lockname) \ |
(spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED, \ |
# define SPIN_DEBUG_INIT(lockname) \ |
.magic = SPINLOCK_MAGIC, \ |
.owner = SPINLOCK_OWNER_INIT, \ |
.owner_cpu = -1, \ |
SPIN_DEP_MAP_INIT(lockname) } |
#define __RW_LOCK_UNLOCKED(lockname) \ |
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \ |
.magic = RWLOCK_MAGIC, \ |
.owner = SPINLOCK_OWNER_INIT, \ |
.owner_cpu = -1, \ |
RW_DEP_MAP_INIT(lockname) } |
.owner = SPINLOCK_OWNER_INIT, |
#else |
# define __SPIN_LOCK_UNLOCKED(lockname) \ |
(spinlock_t) { .raw_lock = __RAW_SPIN_LOCK_UNLOCKED, \ |
# define SPIN_DEBUG_INIT(lockname) |
#endif |
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#define __RAW_SPIN_LOCK_INITIALIZER(lockname) \ |
{ \ |
.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \ |
SPIN_DEBUG_INIT(lockname) \ |
SPIN_DEP_MAP_INIT(lockname) } |
#define __RW_LOCK_UNLOCKED(lockname) \ |
(rwlock_t) { .raw_lock = __RAW_RW_LOCK_UNLOCKED, \ |
RW_DEP_MAP_INIT(lockname) } |
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#define __RAW_SPIN_LOCK_UNLOCKED(lockname) \ |
(raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname) |
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#define DEFINE_RAW_SPINLOCK(x) raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x) |
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typedef struct spinlock { |
union { |
struct raw_spinlock rlock; |
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#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; |
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/* |
* SPIN_LOCK_UNLOCKED and RW_LOCK_UNLOCKED defeat lockdep state tracking and |
* are hence deprecated. |
* Please use DEFINE_SPINLOCK()/DEFINE_RWLOCK() or |
* __SPIN_LOCK_UNLOCKED()/__RW_LOCK_UNLOCKED() as appropriate. |
*/ |
#define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init) |
#define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init) |
#define __SPIN_LOCK_INITIALIZER(lockname) \ |
{ { .rlock = __RAW_SPIN_LOCK_INITIALIZER(lockname) } } |
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#define __SPIN_LOCK_UNLOCKED(lockname) \ |
(spinlock_t ) __SPIN_LOCK_INITIALIZER(lockname) |
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#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) |
#define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x) |
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#include <linux/rwlock_types.h> |
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#endif /* __LINUX_SPINLOCK_TYPES_H */ |