| 17,8 → 17,8 |
|---|
| |
| #include <linux/lockdep.h> |
| |
| 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; |
| |
| #define SPINLOCK_MAGIC 0xdead4ead |
| |
| 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; |
| |
| #define RWLOCK_MAGIC 0xdeaf1eed |
| |
| #define SPINLOCK_OWNER_INIT ((void *)-1L) |
| |
| #ifdef CONFIG_DEBUG_LOCK_ALLOC |
| 57,44 → 41,48 |
|---|
| # define SPIN_DEP_MAP_INIT(lockname) |
| #endif |
| |
| #ifdef CONFIG_DEBUG_LOCK_ALLOC |
| # define RW_DEP_MAP_INIT(lockname) .dep_map = { .name = #lockname } |
| #else |
| # define RW_DEP_MAP_INIT(lockname) |
| #endif |
| |
| #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 |
| |
| #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) } |
| |
| #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; |
| |
| /* |
| * 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) } } |
| |
| #define __SPIN_LOCK_UNLOCKED(lockname) \ |
| (spinlock_t ) __SPIN_LOCK_INITIALIZER(lockname) |
| |
| #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) |
| #define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x) |
| |
| #include <linux/rwlock_types.h> |
| |
| #endif /* __LINUX_SPINLOCK_TYPES_H */ |