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usr/src/linux-headers-5.15.0-142/include/trace/events/lock.h��0000644��00000003311�15030355406�0017071 0��ustar�00��/* SPDX-License-Identifier: GPL-2.0 / #undef TRACE_SYSTEM #define TRACE_SYSTEM lock #if !defined(_TRACE_LOCK_H) \|\| defined(TRACE_HEADER_MULTI_READ) #define _TRACE_LOCK_H #include <linux/lockdep.h> #include <linux/tracepoint.h> #ifdef CONFIG_LOCKDEP TRACE_EVENT(lock_acquire, TP_PROTO(struct lockdep_map lock, unsigned int subclass, int trylock, int read, int check, struct lockdep_map next_lock, unsigned long ip), TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip), TP_STRUCT__entry( __field(unsigned int, flags) __string(name, lock->name) __field(void , lockdep_addr) ), TP_fast_assign( __entry->flags = (trylock ? 1 : 0) \| (read ? 2 : 0); __assign_str(name, lock->name); __entry->lockdep_addr = lock; ), TP_printk("%p %s%s%s", __entry->lockdep_addr, (__entry->flags & 1) ? "try " : "", (__entry->flags & 2) ? "read " : "", __get_str(name)) ); DECLARE_EVENT_CLASS(lock, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip), TP_STRUCT__entry( __string( name, lock->name ) __field( void , lockdep_addr ) ), TP_fast_assign( __assign_str(name, lock->name); __entry->lockdep_addr = lock; ), TP_printk("%p %s", __entry->lockdep_addr, __get_str(name)) ); DEFINE_EVENT(lock, lock_release, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); #ifdef CONFIG_LOCK_STAT DEFINE_EVENT(lock, lock_contended, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); DEFINE_EVENT(lock, lock_acquired, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); #endif #endif #endif / _TRACE_LOCK_H / / This part must be outside protection / #include <trace/define_trace.h> ��usr/src/linux-headers-5.15.0-133/include/asm-generic/bitops/lock.h��0000644��00000005115�15030451565�0020170 0��ustar�00��/ SPDX-License-Identifier: GPL-2.0 / #ifndef _ASM_GENERIC_BITOPS_LOCK_H_ #define _ASM_GENERIC_BITOPS_LOCK_H_ #include <linux/atomic.h> #include <linux/compiler.h> #include <asm/barrier.h> /* * arch_test_and_set_bit_lock - Set a bit and return its old value, for lock * @nr: Bit to set * @addr: Address to count from * * This operation is atomic and provides acquire barrier semantics if * the returned value is 0. * It can be used to implement bit locks. / static __always_inline int arch_test_and_set_bit_lock(unsigned int nr, volatile unsigned long p) { long old; unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); if (READ_ONCE(p) & mask) return 1; old = arch_atomic_long_fetch_or_acquire(mask, (atomic_long_t )p); return !!(old & mask); } /** * arch_clear_bit_unlock - Clear a bit in memory, for unlock * @nr: the bit to set * @addr: the address to start counting from * * This operation is atomic and provides release barrier semantics. / static __always_inline void arch_clear_bit_unlock(unsigned int nr, volatile unsigned long p) { p += BIT_WORD(nr); arch_atomic_long_fetch_andnot_release(BIT_MASK(nr), (atomic_long_t )p); } /* * arch___clear_bit_unlock - Clear a bit in memory, for unlock * @nr: the bit to set * @addr: the address to start counting from * * A weaker form of clear_bit_unlock() as used by __bit_lock_unlock(). If all * the bits in the word are protected by this lock some archs can use weaker * ops to safely unlock. * * See for example x86's implementation. / static inline void arch___clear_bit_unlock(unsigned int nr, volatile unsigned long p) { unsigned long old; p += BIT_WORD(nr); old = READ_ONCE(p); old &= ~BIT_MASK(nr); arch_atomic_long_set_release((atomic_long_t )p, old); } /** * arch_clear_bit_unlock_is_negative_byte - Clear a bit in memory and test if bottom * byte is negative, for unlock. * @nr: the bit to clear * @addr: the address to start counting from * * This is a bit of a one-trick-pony for the filemap code, which clears * PG_locked and tests PG_waiters, / #ifndef arch_clear_bit_unlock_is_negative_byte static inline bool arch_clear_bit_unlock_is_negative_byte(unsigned int nr, volatile unsigned long p) { long old; unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); old = arch_atomic_long_fetch_andnot_release(mask, (atomic_long_t )p); return !!(old & BIT(7)); } #define arch_clear_bit_unlock_is_negative_byte arch_clear_bit_unlock_is_negative_byte #endif #include <asm-generic/bitops/instrumented-lock.h> #endif / _ASM_GENERIC_BITOPS_LOCK_H_ / ��usr/src/linux-headers-5.15.0-133/include/trace/events/lock.h��0000644��00000003311�15030470105�0017063 0��ustar�00��/ SPDX-License-Identifier: GPL-2.0 / #undef TRACE_SYSTEM #define TRACE_SYSTEM lock #if !defined(_TRACE_LOCK_H) \|\| defined(TRACE_HEADER_MULTI_READ) #define _TRACE_LOCK_H #include <linux/lockdep.h> #include <linux/tracepoint.h> #ifdef CONFIG_LOCKDEP TRACE_EVENT(lock_acquire, TP_PROTO(struct lockdep_map lock, unsigned int subclass, int trylock, int read, int check, struct lockdep_map next_lock, unsigned long ip), TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip), TP_STRUCT__entry( __field(unsigned int, flags) __string(name, lock->name) __field(void , lockdep_addr) ), TP_fast_assign( __entry->flags = (trylock ? 1 : 0) \| (read ? 2 : 0); __assign_str(name, lock->name); __entry->lockdep_addr = lock; ), TP_printk("%p %s%s%s", __entry->lockdep_addr, (__entry->flags & 1) ? "try " : "", (__entry->flags & 2) ? "read " : "", __get_str(name)) ); DECLARE_EVENT_CLASS(lock, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip), TP_STRUCT__entry( __string( name, lock->name ) __field( void , lockdep_addr ) ), TP_fast_assign( __assign_str(name, lock->name); __entry->lockdep_addr = lock; ), TP_printk("%p %s", __entry->lockdep_addr, __get_str(name)) ); DEFINE_EVENT(lock, lock_release, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); #ifdef CONFIG_LOCK_STAT DEFINE_EVENT(lock, lock_contended, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); DEFINE_EVENT(lock, lock_acquired, TP_PROTO(struct lockdep_map lock, unsigned long ip), TP_ARGS(lock, ip) ); #endif #endif #endif / _TRACE_LOCK_H / / This part must be outside protection */ #include <trace/define_trace.h> ��

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