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Diffstat (limited to 'include/linux/spinlock.h')
-rw-r--r--include/linux/spinlock.h119
1 files changed, 88 insertions, 31 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index d3561c4a080e..e1e2f144af9b 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -212,7 +212,7 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
* various methods are defined as nops in the case they are not
* required.
*/
-#define raw_spin_trylock(lock) __cond_lock(lock, _raw_spin_trylock(lock))
+#define raw_spin_trylock(lock) _raw_spin_trylock(lock)
#define raw_spin_lock(lock) _raw_spin_lock(lock)
@@ -283,22 +283,11 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
} while (0)
#define raw_spin_unlock_bh(lock) _raw_spin_unlock_bh(lock)
-#define raw_spin_trylock_bh(lock) \
- __cond_lock(lock, _raw_spin_trylock_bh(lock))
+#define raw_spin_trylock_bh(lock) _raw_spin_trylock_bh(lock)
-#define raw_spin_trylock_irq(lock) \
-({ \
- local_irq_disable(); \
- raw_spin_trylock(lock) ? \
- 1 : ({ local_irq_enable(); 0; }); \
-})
+#define raw_spin_trylock_irq(lock) _raw_spin_trylock_irq(lock)
-#define raw_spin_trylock_irqsave(lock, flags) \
-({ \
- local_irq_save(flags); \
- raw_spin_trylock(lock) ? \
- 1 : ({ local_irq_restore(flags); 0; }); \
-})
+#define raw_spin_trylock_irqsave(lock, flags) _raw_spin_trylock_irqsave(lock, &(flags))
#ifndef CONFIG_PREEMPT_RT
/* Include rwlock functions for !RT */
@@ -347,16 +336,19 @@ do { \
#endif
static __always_inline void spin_lock(spinlock_t *lock)
+ __acquires(lock) __no_context_analysis
{
raw_spin_lock(&lock->rlock);
}
static __always_inline void spin_lock_bh(spinlock_t *lock)
+ __acquires(lock) __no_context_analysis
{
raw_spin_lock_bh(&lock->rlock);
}
static __always_inline int spin_trylock(spinlock_t *lock)
+ __cond_acquires(true, lock) __no_context_analysis
{
return raw_spin_trylock(&lock->rlock);
}
@@ -364,14 +356,17 @@ static __always_inline int spin_trylock(spinlock_t *lock)
#define spin_lock_nested(lock, subclass) \
do { \
raw_spin_lock_nested(spinlock_check(lock), subclass); \
+ __release(spinlock_check(lock)); __acquire(lock); \
} while (0)
#define spin_lock_nest_lock(lock, nest_lock) \
do { \
raw_spin_lock_nest_lock(spinlock_check(lock), nest_lock); \
+ __release(spinlock_check(lock)); __acquire(lock); \
} while (0)
static __always_inline void spin_lock_irq(spinlock_t *lock)
+ __acquires(lock) __no_context_analysis
{
raw_spin_lock_irq(&lock->rlock);
}
@@ -379,47 +374,57 @@ static __always_inline void spin_lock_irq(spinlock_t *lock)
#define spin_lock_irqsave(lock, flags) \
do { \
raw_spin_lock_irqsave(spinlock_check(lock), flags); \
+ __release(spinlock_check(lock)); __acquire(lock); \
} while (0)
#define spin_lock_irqsave_nested(lock, flags, subclass) \
do { \
raw_spin_lock_irqsave_nested(spinlock_check(lock), flags, subclass); \
+ __release(spinlock_check(lock)); __acquire(lock); \
} while (0)
static __always_inline void spin_unlock(spinlock_t *lock)
+ __releases(lock) __no_context_analysis
{
raw_spin_unlock(&lock->rlock);
}
static __always_inline void spin_unlock_bh(spinlock_t *lock)
+ __releases(lock) __no_context_analysis
{
raw_spin_unlock_bh(&lock->rlock);
}
static __always_inline void spin_unlock_irq(spinlock_t *lock)
+ __releases(lock) __no_context_analysis
{
raw_spin_unlock_irq(&lock->rlock);
}
static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
+ __releases(lock) __no_context_analysis
{
raw_spin_unlock_irqrestore(&lock->rlock, flags);
}
static __always_inline int spin_trylock_bh(spinlock_t *lock)
+ __cond_acquires(true, lock) __no_context_analysis
{
return raw_spin_trylock_bh(&lock->rlock);
}
static __always_inline int spin_trylock_irq(spinlock_t *lock)
+ __cond_acquires(true, lock) __no_context_analysis
{
return raw_spin_trylock_irq(&lock->rlock);
}
-#define spin_trylock_irqsave(lock, flags) \
-({ \
- raw_spin_trylock_irqsave(spinlock_check(lock), flags); \
-})
+static __always_inline bool _spin_trylock_irqsave(spinlock_t *lock, unsigned long *flags)
+ __cond_acquires(true, lock) __no_context_analysis
+{
+ return raw_spin_trylock_irqsave(spinlock_check(lock), *flags);
+}
+#define spin_trylock_irqsave(lock, flags) _spin_trylock_irqsave(lock, &(flags))
/**
* spin_is_locked() - Check whether a spinlock is locked.
@@ -497,23 +502,17 @@ static inline int rwlock_needbreak(rwlock_t *lock)
* Decrements @atomic by 1. If the result is 0, returns true and locks
* @lock. Returns false for all other cases.
*/
-extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock);
-#define atomic_dec_and_lock(atomic, lock) \
- __cond_lock(lock, _atomic_dec_and_lock(atomic, lock))
+extern int atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock) __cond_acquires(true, lock);
extern int _atomic_dec_and_lock_irqsave(atomic_t *atomic, spinlock_t *lock,
- unsigned long *flags);
-#define atomic_dec_and_lock_irqsave(atomic, lock, flags) \
- __cond_lock(lock, _atomic_dec_and_lock_irqsave(atomic, lock, &(flags)))
+ unsigned long *flags) __cond_acquires(true, lock);
+#define atomic_dec_and_lock_irqsave(atomic, lock, flags) _atomic_dec_and_lock_irqsave(atomic, lock, &(flags))
-extern int _atomic_dec_and_raw_lock(atomic_t *atomic, raw_spinlock_t *lock);
-#define atomic_dec_and_raw_lock(atomic, lock) \
- __cond_lock(lock, _atomic_dec_and_raw_lock(atomic, lock))
+extern int atomic_dec_and_raw_lock(atomic_t *atomic, raw_spinlock_t *lock) __cond_acquires(true, lock);
extern int _atomic_dec_and_raw_lock_irqsave(atomic_t *atomic, raw_spinlock_t *lock,
- unsigned long *flags);
-#define atomic_dec_and_raw_lock_irqsave(atomic, lock, flags) \
- __cond_lock(lock, _atomic_dec_and_raw_lock_irqsave(atomic, lock, &(flags)))
+ unsigned long *flags) __cond_acquires(true, lock);
+#define atomic_dec_and_raw_lock_irqsave(atomic, lock, flags) _atomic_dec_and_raw_lock_irqsave(atomic, lock, &(flags))
int __alloc_bucket_spinlocks(spinlock_t **locks, unsigned int *lock_mask,
size_t max_size, unsigned int cpu_mult,
@@ -535,86 +534,144 @@ void free_bucket_spinlocks(spinlock_t *locks);
DEFINE_LOCK_GUARD_1(raw_spinlock, raw_spinlock_t,
raw_spin_lock(_T->lock),
raw_spin_unlock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock, _T)
DEFINE_LOCK_GUARD_1_COND(raw_spinlock, _try, raw_spin_trylock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_try, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_try, _T)
DEFINE_LOCK_GUARD_1(raw_spinlock_nested, raw_spinlock_t,
raw_spin_lock_nested(_T->lock, SINGLE_DEPTH_NESTING),
raw_spin_unlock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_nested, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_nested_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_nested, _T)
DEFINE_LOCK_GUARD_1(raw_spinlock_irq, raw_spinlock_t,
raw_spin_lock_irq(_T->lock),
raw_spin_unlock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_irq, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_irq_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_irq, _T)
DEFINE_LOCK_GUARD_1_COND(raw_spinlock_irq, _try, raw_spin_trylock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_irq_try, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_irq_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_irq_try, _T)
DEFINE_LOCK_GUARD_1(raw_spinlock_bh, raw_spinlock_t,
raw_spin_lock_bh(_T->lock),
raw_spin_unlock_bh(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_bh, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_bh_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_bh, _T)
DEFINE_LOCK_GUARD_1_COND(raw_spinlock_bh, _try, raw_spin_trylock_bh(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_bh_try, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_bh_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_bh_try, _T)
DEFINE_LOCK_GUARD_1(raw_spinlock_irqsave, raw_spinlock_t,
raw_spin_lock_irqsave(_T->lock, _T->flags),
raw_spin_unlock_irqrestore(_T->lock, _T->flags),
unsigned long flags)
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_irqsave, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_irqsave_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_irqsave, _T)
DEFINE_LOCK_GUARD_1_COND(raw_spinlock_irqsave, _try,
raw_spin_trylock_irqsave(_T->lock, _T->flags))
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_irqsave_try, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_irqsave_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_irqsave_try, _T)
+
+DEFINE_LOCK_GUARD_1(raw_spinlock_init, raw_spinlock_t, raw_spin_lock_init(_T->lock), /* */)
+DECLARE_LOCK_GUARD_1_ATTRS(raw_spinlock_init, __acquires(_T), __releases(*(raw_spinlock_t **)_T))
+#define class_raw_spinlock_init_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(raw_spinlock_init, _T)
DEFINE_LOCK_GUARD_1(spinlock, spinlock_t,
spin_lock(_T->lock),
spin_unlock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock, _T)
DEFINE_LOCK_GUARD_1_COND(spinlock, _try, spin_trylock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_try, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_try, _T)
DEFINE_LOCK_GUARD_1(spinlock_irq, spinlock_t,
spin_lock_irq(_T->lock),
spin_unlock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_irq, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_irq_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_irq, _T)
DEFINE_LOCK_GUARD_1_COND(spinlock_irq, _try,
spin_trylock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_irq_try, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_irq_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_irq_try, _T)
DEFINE_LOCK_GUARD_1(spinlock_bh, spinlock_t,
spin_lock_bh(_T->lock),
spin_unlock_bh(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_bh, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_bh_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_bh, _T)
DEFINE_LOCK_GUARD_1_COND(spinlock_bh, _try,
spin_trylock_bh(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_bh_try, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_bh_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_bh_try, _T)
DEFINE_LOCK_GUARD_1(spinlock_irqsave, spinlock_t,
spin_lock_irqsave(_T->lock, _T->flags),
spin_unlock_irqrestore(_T->lock, _T->flags),
unsigned long flags)
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_irqsave, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_irqsave_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_irqsave, _T)
DEFINE_LOCK_GUARD_1_COND(spinlock_irqsave, _try,
spin_trylock_irqsave(_T->lock, _T->flags))
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_irqsave_try, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_irqsave_try_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_irqsave_try, _T)
+
+DEFINE_LOCK_GUARD_1(spinlock_init, spinlock_t, spin_lock_init(_T->lock), /* */)
+DECLARE_LOCK_GUARD_1_ATTRS(spinlock_init, __acquires(_T), __releases(*(spinlock_t **)_T))
+#define class_spinlock_init_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(spinlock_init, _T)
DEFINE_LOCK_GUARD_1(read_lock, rwlock_t,
read_lock(_T->lock),
read_unlock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(read_lock, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_read_lock_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(read_lock, _T)
DEFINE_LOCK_GUARD_1(read_lock_irq, rwlock_t,
read_lock_irq(_T->lock),
read_unlock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(read_lock_irq, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_read_lock_irq_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(read_lock_irq, _T)
DEFINE_LOCK_GUARD_1(read_lock_irqsave, rwlock_t,
read_lock_irqsave(_T->lock, _T->flags),
read_unlock_irqrestore(_T->lock, _T->flags),
unsigned long flags)
+DECLARE_LOCK_GUARD_1_ATTRS(read_lock_irqsave, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_read_lock_irqsave_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(read_lock_irqsave, _T)
DEFINE_LOCK_GUARD_1(write_lock, rwlock_t,
write_lock(_T->lock),
write_unlock(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(write_lock, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_write_lock_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(write_lock, _T)
DEFINE_LOCK_GUARD_1(write_lock_irq, rwlock_t,
write_lock_irq(_T->lock),
write_unlock_irq(_T->lock))
+DECLARE_LOCK_GUARD_1_ATTRS(write_lock_irq, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_write_lock_irq_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(write_lock_irq, _T)
DEFINE_LOCK_GUARD_1(write_lock_irqsave, rwlock_t,
write_lock_irqsave(_T->lock, _T->flags),
write_unlock_irqrestore(_T->lock, _T->flags),
unsigned long flags)
+DECLARE_LOCK_GUARD_1_ATTRS(write_lock_irqsave, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_write_lock_irqsave_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(write_lock_irqsave, _T)
+
+DEFINE_LOCK_GUARD_1(rwlock_init, rwlock_t, rwlock_init(_T->lock), /* */)
+DECLARE_LOCK_GUARD_1_ATTRS(rwlock_init, __acquires(_T), __releases(*(rwlock_t **)_T))
+#define class_rwlock_init_constructor(_T) WITH_LOCK_GUARD_1_ATTRS(rwlock_init, _T)
#undef __LINUX_INSIDE_SPINLOCK_H
#endif /* __LINUX_SPINLOCK_H */
generated by cgit v1.2.3 (git 2.0.4) at 2026-02-15 22:55:59 +0000