cregit-Linux how code gets into the kernel

Release 4.7 include/linux/rwlock_api_smp.h

Directory: include/linux
#ifndef __LINUX_RWLOCK_API_SMP_H

#define __LINUX_RWLOCK_API_SMP_H

#ifndef __LINUX_SPINLOCK_API_SMP_H
# error "please don't include this file directly"
#endif

/*
 * include/linux/rwlock_api_smp.h
 *
 * spinlock API declarations on SMP (and debug)
 * (implemented in kernel/spinlock.c)
 *
 * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
 * Released under the General Public License (GPL).
 */


void __lockfunc _raw_read_lock(rwlock_t *lock)		__acquires(lock);

void __lockfunc _raw_write_lock(rwlock_t *lock)		__acquires(lock);

void __lockfunc _raw_read_lock_bh(rwlock_t *lock)	__acquires(lock);

void __lockfunc _raw_write_lock_bh(rwlock_t *lock)	__acquires(lock);

void __lockfunc _raw_read_lock_irq(rwlock_t *lock)	__acquires(lock);

void __lockfunc _raw_write_lock_irq(rwlock_t *lock)	__acquires(lock);
unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock)
							__acquires
(lock);
unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
							__acquires
(lock);
int __lockfunc _raw_read_trylock(rwlock_t *lock);
int __lockfunc _raw_write_trylock(rwlock_t *lock);

void __lockfunc _raw_read_unlock(rwlock_t *lock)	__releases(lock);

void __lockfunc _raw_write_unlock(rwlock_t *lock)	__releases(lock);

void __lockfunc _raw_read_unlock_bh(rwlock_t *lock)	__releases(lock);

void __lockfunc _raw_write_unlock_bh(rwlock_t *lock)	__releases(lock);

void __lockfunc _raw_read_unlock_irq(rwlock_t *lock)	__releases(lock);

void __lockfunc _raw_write_unlock_irq(rwlock_t *lock)	__releases(lock);
void __lockfunc
_raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
							__releases
(lock);
void __lockfunc
_raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
							__releases
(lock);

#ifdef CONFIG_INLINE_READ_LOCK

#define _raw_read_lock(lock) __raw_read_lock(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_LOCK

#define _raw_write_lock(lock) __raw_write_lock(lock)
#endif

#ifdef CONFIG_INLINE_READ_LOCK_BH

#define _raw_read_lock_bh(lock) __raw_read_lock_bh(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_LOCK_BH

#define _raw_write_lock_bh(lock) __raw_write_lock_bh(lock)
#endif

#ifdef CONFIG_INLINE_READ_LOCK_IRQ

#define _raw_read_lock_irq(lock) __raw_read_lock_irq(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_LOCK_IRQ

#define _raw_write_lock_irq(lock) __raw_write_lock_irq(lock)
#endif

#ifdef CONFIG_INLINE_READ_LOCK_IRQSAVE

#define _raw_read_lock_irqsave(lock) __raw_read_lock_irqsave(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_LOCK_IRQSAVE

#define _raw_write_lock_irqsave(lock) __raw_write_lock_irqsave(lock)
#endif

#ifdef CONFIG_INLINE_READ_TRYLOCK

#define _raw_read_trylock(lock) __raw_read_trylock(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_TRYLOCK

#define _raw_write_trylock(lock) __raw_write_trylock(lock)
#endif

#ifdef CONFIG_INLINE_READ_UNLOCK

#define _raw_read_unlock(lock) __raw_read_unlock(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_UNLOCK

#define _raw_write_unlock(lock) __raw_write_unlock(lock)
#endif

#ifdef CONFIG_INLINE_READ_UNLOCK_BH

#define _raw_read_unlock_bh(lock) __raw_read_unlock_bh(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_UNLOCK_BH

#define _raw_write_unlock_bh(lock) __raw_write_unlock_bh(lock)
#endif

#ifdef CONFIG_INLINE_READ_UNLOCK_IRQ

#define _raw_read_unlock_irq(lock) __raw_read_unlock_irq(lock)
#endif

#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQ

#define _raw_write_unlock_irq(lock) __raw_write_unlock_irq(lock)
#endif

#ifdef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE

#define _raw_read_unlock_irqrestore(lock, flags) \
	__raw_read_unlock_irqrestore(lock, flags)
#endif

#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE

#define _raw_write_unlock_irqrestore(lock, flags) \
	__raw_write_unlock_irqrestore(lock, flags)
#endif


static inline int __raw_read_trylock(rwlock_t *lock) { preempt_disable(); if (do_raw_read_trylock(lock)) { rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_); return 1; } preempt_enable(); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner46100.00%3100.00%
Total46100.00%3100.00%


static inline int __raw_write_trylock(rwlock_t *lock) { preempt_disable(); if (do_raw_write_trylock(lock)) { rwlock_acquire(&lock->dep_map, 0, 1, _RET_IP_); return 1; } preempt_enable(); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner46100.00%3100.00%
Total46100.00%3100.00%

/* * If lockdep is enabled then we use the non-preemption spin-ops * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are * not re-enabled during lock-acquire (which the preempt-spin-ops do): */ #if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
static inline void __raw_read_lock(rwlock_t *lock) { preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_read_trylock, do_raw_read_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner37100.00%3100.00%
Total37100.00%3100.00%


static inline unsigned long __raw_read_lock_irqsave(rwlock_t *lock) { unsigned long flags; local_irq_save(flags); preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED_FLAGS(lock, do_raw_read_trylock, do_raw_read_lock, do_raw_read_lock_flags, &flags); return flags; }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner55100.00%3100.00%
Total55100.00%3100.00%


static inline void __raw_read_lock_irq(rwlock_t *lock) { local_irq_disable(); preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_read_trylock, do_raw_read_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner40100.00%3100.00%
Total40100.00%3100.00%


static inline void __raw_read_lock_bh(rwlock_t *lock) { __local_bh_disable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_read_trylock, do_raw_read_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner3585.37%375.00%
peter zijlstrapeter zijlstra614.63%125.00%
Total41100.00%4100.00%


static inline unsigned long __raw_write_lock_irqsave(rwlock_t *lock) { unsigned long flags; local_irq_save(flags); preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED_FLAGS(lock, do_raw_write_trylock, do_raw_write_lock, do_raw_write_lock_flags, &flags); return flags; }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner55100.00%3100.00%
Total55100.00%3100.00%


static inline void __raw_write_lock_irq(rwlock_t *lock) { local_irq_disable(); preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_write_trylock, do_raw_write_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner40100.00%3100.00%
Total40100.00%3100.00%


static inline void __raw_write_lock_bh(rwlock_t *lock) { __local_bh_disable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_write_trylock, do_raw_write_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner3585.37%375.00%
peter zijlstrapeter zijlstra614.63%125.00%
Total41100.00%4100.00%


static inline void __raw_write_lock(rwlock_t *lock) { preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); LOCK_CONTENDED(lock, do_raw_write_trylock, do_raw_write_lock); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner37100.00%3100.00%
Total37100.00%3100.00%

#endif /* CONFIG_PREEMPT */
static inline void __raw_write_unlock(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_write_unlock(lock); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner31100.00%3100.00%
Total31100.00%3100.00%


static inline void __raw_read_unlock(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_read_unlock(lock); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner31100.00%3100.00%
Total31100.00%3100.00%


static inline void __raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_read_unlock(lock); local_irq_restore(flags); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner40100.00%3100.00%
Total40100.00%3100.00%


static inline void __raw_read_unlock_irq(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_read_unlock(lock); local_irq_enable(); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner34100.00%3100.00%
Total34100.00%3100.00%


static inline void __raw_read_unlock_bh(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_read_unlock(lock); __local_bh_enable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner3188.57%375.00%
peter zijlstrapeter zijlstra411.43%125.00%
Total35100.00%4100.00%


static inline void __raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_write_unlock(lock); local_irq_restore(flags); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner40100.00%3100.00%
Total40100.00%3100.00%


static inline void __raw_write_unlock_irq(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_write_unlock(lock); local_irq_enable(); preempt_enable(); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner34100.00%3100.00%
Total34100.00%3100.00%


static inline void __raw_write_unlock_bh(rwlock_t *lock) { rwlock_release(&lock->dep_map, 1, _RET_IP_); do_raw_write_unlock(lock); __local_bh_enable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET); }

Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner3188.57%375.00%
peter zijlstrapeter zijlstra411.43%125.00%
Total35100.00%4100.00%

#endif /* __LINUX_RWLOCK_API_SMP_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
thomas gleixnerthomas gleixner119098.35%375.00%
peter zijlstrapeter zijlstra201.65%125.00%
Total1210100.00%4100.00%
Directory: include/linux
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}