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/* * include/linux/spinlock.h - generic spinlock/rwlock declarations * * here's the role of the various spinlock/rwlock related include files: * * on SMP builds: * * asm/spinlock_types.h: contains the arch_spinlock_t/arch_rwlock_t and the * initializers * * linux/spinlock_types_raw: * The raw types and initializers * linux/spinlock_types.h: * defines the generic type and initializers * * asm/spinlock.h: contains the arch_spin_*()/etc. lowlevel * implementations, mostly inline assembly code * * (also included on UP-debug builds:) * * linux/spinlock_api_smp.h: * contains the prototypes for the _spin_*() APIs. * * linux/spinlock.h: builds the final spin_*() APIs. * * on UP builds: * * linux/spinlock_type_up.h: * contains the generic, simplified UP spinlock type. * (which is an empty structure on non-debug builds) * * linux/spinlock_types_raw: * The raw RT types and initializers * linux/spinlock_types.h: * defines the generic type and initializers * * linux/spinlock_up.h: * contains the arch_spin_*()/etc. version of UP * builds. (which are NOPs on non-debug, non-preempt * builds) * * (included on UP-non-debug builds:) * * linux/spinlock_api_up.h: * builds the _spin_*() APIs. * * linux/spinlock.h: builds the final spin_*() APIs. */
#include <linux/typecheck.h>#include <linux/preempt.h>#include <linux/linkage.h>#include <linux/compiler.h>#include <linux/irqflags.h>#include <linux/interrupt_rc.h>#include <linux/thread_info.h>#include <linux/stringify.h>#include <linux/bottom_half.h>#include <linux/lockdep.h>#include <linux/cleanup.h>#include <asm/barrier.h>#include <asm/mmiowb.h>
/* * Must define these before including other files, inline functions need them */#define LOCK_SECTION_NAME ".text..lock."KBUILD_BASENAME
#define LOCK_SECTION_START(extra) \ ".subsection 1\n\t" \ extra \ ".ifndef " LOCK_SECTION_NAME "\n\t" \ LOCK_SECTION_NAME ":\n\t" \ ".endif\n"
#define LOCK_SECTION_END \ ".previous\n\t"
#define __lockfunc __section(".spinlock.text")
/* * Pull the arch_spinlock_t and arch_rwlock_t definitions: */#include <linux/spinlock_types.h>
/* * Pull the arch_spin*() functions/declarations (UP-nondebug doesn't need them): */#ifdef CONFIG_SMP# include <asm/spinlock.h>#else# include <linux/spinlock_up.h>#endif
#ifdef CONFIG_DEBUG_SPINLOCK extern void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name, struct lock_class_key *key, short inner);
# define raw_spin_lock_init(lock) \do { \ static struct lock_class_key __key; \ \ __raw_spin_lock_init((lock), #lock, &__key, LD_WAIT_SPIN); \} while (0)
#else# define raw_spin_lock_init(lock) \ do { *(lock) = __RAW_SPIN_LOCK_UNLOCKED(lock); } while (0)#endif
#define raw_spin_is_locked(lock) arch_spin_is_locked(&(lock)->raw_lock)
#ifdef arch_spin_is_contended#define raw_spin_is_contended(lock) arch_spin_is_contended(&(lock)->raw_lock)#else#define raw_spin_is_contended(lock) (((void)(lock), 0))#endif /*arch_spin_is_contended*/
/* * smp_mb__after_spinlock() provides the equivalent of a full memory barrier * between program-order earlier lock acquisitions and program-order later * memory accesses. * * This guarantees that the following two properties hold: * * 1) Given the snippet: * * { X = 0; Y = 0; } * * CPU0 CPU1 * * WRITE_ONCE(X, 1); WRITE_ONCE(Y, 1); * spin_lock(S); smp_mb(); * smp_mb__after_spinlock(); r1 = READ_ONCE(X); * r0 = READ_ONCE(Y); * spin_unlock(S); * * it is forbidden that CPU0 does not observe CPU1's store to Y (r0 = 0) * and CPU1 does not observe CPU0's store to X (r1 = 0); see the comments * preceding the call to smp_mb__after_spinlock() in __schedule() and in * try_to_wake_up(). * * 2) Given the snippet: * * { X = 0; Y = 0; } * * CPU0 CPU1 CPU2 * * spin_lock(S); spin_lock(S); r1 = READ_ONCE(Y); * WRITE_ONCE(X, 1); smp_mb__after_spinlock(); smp_rmb(); * spin_unlock(S); r0 = READ_ONCE(X); r2 = READ_ONCE(X); * WRITE_ONCE(Y, 1); * spin_unlock(S); * * it is forbidden that CPU0's critical section executes before CPU1's * critical section (r0 = 1), CPU2 observes CPU1's store to Y (r1 = 1) * and CPU2 does not observe CPU0's store to X (r2 = 0); see the comments * preceding the calls to smp_rmb() in try_to_wake_up() for similar * snippets but "projected" onto two CPUs. * * Property (2) upgrades the lock to an RCsc lock. * * Since most load-store architectures implement ACQUIRE with an smp_mb() after * the LL/SC loop, they need no further barriers. Similarly all our TSO * architectures imply an smp_mb() for each atomic instruction and equally don't * need more. * * Architectures that can implement ACQUIRE better need to take care. */#ifndef smp_mb__after_spinlock#define smp_mb__after_spinlock() kcsan_mb()#endif
#ifdef CONFIG_DEBUG_SPINLOCK extern void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock); extern int do_raw_spin_trylock(raw_spinlock_t *lock) __cond_acquires(true, lock); extern void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock);#elsestatic inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock){ __acquire(lock); arch_spin_lock(&lock->raw_lock); mmiowb_spin_lock();}
static inline int do_raw_spin_trylock(raw_spinlock_t *lock) __cond_acquires(true, lock){ int ret = arch_spin_trylock(&(lock)->raw_lock);
if (ret) mmiowb_spin_lock();
return ret;}
static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock){ mmiowb_spin_unlock(); arch_spin_unlock(&lock->raw_lock); __release(lock);}#endif
/* * Define the various spin_lock methods. Note we define these * regardless of whether CONFIG_SMP or CONFIG_PREEMPTION are set. The * various methods are defined as nops in the case they are not * required. */#define raw_spin_trylock(lock) _raw_spin_trylock(lock)
#define raw_spin_lock(lock) _raw_spin_lock(lock)
#ifdef CONFIG_DEBUG_LOCK_ALLOC# define raw_spin_lock_nested(lock, subclass) \ _raw_spin_lock_nested(lock, subclass)
# define raw_spin_lock_nest_lock(lock, nest_lock) \ do { \ typecheck(struct lockdep_map *, &(nest_lock)->dep_map);\ _raw_spin_lock_nest_lock(lock, &(nest_lock)->dep_map); \ } while (0)#else/* * Always evaluate the 'subclass' argument to avoid that the compiler * warns about set-but-not-used variables when building with * CONFIG_DEBUG_LOCK_ALLOC=n and with W=1. */# define raw_spin_lock_nested(lock, subclass) \ _raw_spin_lock(((void)(subclass), (lock)))# define raw_spin_lock_nest_lock(lock, nest_lock) _raw_spin_lock(lock)#endif
#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
#define raw_spin_lock_irqsave(lock, flags) \ do { \ typecheck(unsigned long, flags); \ flags = _raw_spin_lock_irqsave(lock); \ } while (0)
#ifdef CONFIG_DEBUG_LOCK_ALLOC#define raw_spin_lock_irqsave_nested(lock, flags, subclass) \ do { \ typecheck(unsigned long, flags); \ flags = _raw_spin_lock_irqsave_nested(lock, subclass); \ } while (0)#else#define raw_spin_lock_irqsave_nested(lock, flags, subclass) \ do { \ typecheck(unsigned long, flags); \ flags = _raw_spin_lock_irqsave(lock); \ } while (0)#endif
#else
#define raw_spin_lock_irqsave(lock, flags) \ do { \ typecheck(unsigned long, flags); \ _raw_spin_lock_irqsave(lock, flags); \ } while (0)
#define raw_spin_lock_irqsave_nested(lock, flags, subclass) \ raw_spin_lock_irqsave(lock, flags)
#endif
#define raw_spin_lock_irq(lock) _raw_spin_lock_irq(lock)#define raw_spin_lock_irq_disable(lock) _raw_spin_lock_irq_disable(lock)#define raw_spin_lock_bh(lock) _raw_spin_lock_bh(lock)#define raw_spin_unlock(lock) _raw_spin_unlock(lock)#define raw_spin_unlock_irq(lock) _raw_spin_unlock_irq(lock)#define raw_spin_unlock_irq_enable(lock) _raw_spin_unlock_irq_enable(lock)
#define raw_spin_unlock_irqrestore(lock, flags) \ do { \ typecheck(unsigned long, flags); \ _raw_spin_unlock_irqrestore(lock, flags); \ } while (0)#define raw_spin_unlock_bh(lock) _raw_spin_unlock_bh(lock)
#define raw_spin_trylock_bh(lock) _raw_spin_trylock_bh(lock)
#define raw_spin_trylock_irq(lock) _raw_spin_trylock_irq(lock)
#define raw_spin_trylock_irqsave(lock, flags) _raw_spin_trylock_irqsave(lock, &(flags))
#define raw_spin_trylock_irq_disable(lock) _raw_spin_trylock_irq_disable(lock)
#ifndef CONFIG_PREEMPT_RT/* Include rwlock functions for !RT */#include <linux/rwlock.h>#endif
/* * Pull the _spin_*()/_read_*()/_write_*() functions/declarations: */#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)# include <linux/spinlock_api_smp.h>#else# include <linux/spinlock_api_up.h>#endif
/* Non PREEMPT_RT kernel, map to raw spinlocks: */#ifndef CONFIG_PREEMPT_RT
/* * Map the spin_lock functions to the raw variants for PREEMPT_RT=n */
static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock){ return &lock->rlock;}
#ifdef CONFIG_DEBUG_SPINLOCK
# define spin_lock_init(lock) \do { \ static struct lock_class_key __key; \ \ __raw_spin_lock_init(spinlock_check(lock), \ #lock, &__key, LD_WAIT_CONFIG); \} while (0)
#else
# define spin_lock_init(_lock) \do { \ spinlock_check(_lock); \ *(_lock) = __SPIN_LOCK_UNLOCKED(_lock); \} while (0)
#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);}
#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);}
static __always_inline void spin_lock_irq_disable(spinlock_t *lock) __acquires(lock) __no_context_analysis{ raw_spin_lock_irq_disable(&lock->rlock);}
#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_irq_enable(spinlock_t *lock) __releases(lock) __no_context_analysis{ raw_spin_unlock_irq_enable(&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);}
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))
static __always_inline int spin_trylock_irq_disable(spinlock_t *lock) __cond_acquires(true, lock) __no_context_analysis{ return raw_spin_trylock_irq_disable(&lock->rlock);}
/** * spin_is_locked() - Check whether a spinlock is locked. * @lock: Pointer to the spinlock. * * This function is NOT required to provide any memory ordering * guarantees; it could be used for debugging purposes or, when * additional synchronization is needed, accompanied with other * constructs (memory barriers) enforcing the synchronization. * * Returns: 1 if @lock is locked, 0 otherwise. * * Note that the function only tells you that the spinlock is * seen to be locked, not that it is locked on your CPU. * * Further, on CONFIG_SMP=n builds with CONFIG_DEBUG_SPINLOCK=n, * the return value is always 0 (see include/linux/spinlock_up.h). * Therefore you should not rely heavily on the return value. */static __always_inline int spin_is_locked(spinlock_t *lock){ return raw_spin_is_locked(&lock->rlock);}
static __always_inline int spin_is_contended(spinlock_t *lock){ return raw_spin_is_contended(&lock->rlock);}
#define assert_spin_locked(lock) assert_raw_spin_locked(&(lock)->rlock)
#else /* !CONFIG_PREEMPT_RT */# include <linux/spinlock_rt.h>#endif /* CONFIG_PREEMPT_RT */
/* * Does a critical section need to be broken due to another * task waiting?: (technically does not depend on CONFIG_PREEMPTION, * but a general need for low latency) */static inline int spin_needbreak(spinlock_t *lock){ if (!preempt_model_preemptible()) return 0;
return spin_is_contended(lock);}
/* * Check if a rwlock is contended. * Returns non-zero if there is another task waiting on the rwlock. * Returns zero if the lock is not contended or the system / underlying * rwlock implementation does not support contention detection. * Technically does not depend on CONFIG_PREEMPTION, but a general need * for low latency. */static inline int rwlock_needbreak(rwlock_t *lock){ if (!preempt_model_preemptible()) return 0;
return rwlock_is_contended(lock);}
/* * Pull the atomic_t declaration: * (asm-mips/atomic.h needs above definitions) */#include <linux/atomic.h>/** * atomic_dec_and_lock - lock on reaching reference count zero * @atomic: the atomic counter * @lock: the spinlock in question * * 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) __cond_acquires(true, lock);
extern int _atomic_dec_and_lock_irqsave(atomic_t *atomic, spinlock_t *lock, 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) __cond_acquires(true, lock);
extern int _atomic_dec_and_raw_lock_irqsave(atomic_t *atomic, raw_spinlock_t *lock, 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, gfp_t gfp, const char *name, struct lock_class_key *key);
#define alloc_bucket_spinlocks(locks, lock_mask, max_size, cpu_mult, gfp) \ ({ \ static struct lock_class_key key; \ int ret; \ \ ret = __alloc_bucket_spinlocks(locks, lock_mask, max_size, \ cpu_mult, gfp, #locks, &key); \ ret; \ })
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 */