mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
5facae4f35
Since the following commit:
b4adfe8e05 ("locking/lockdep: Remove unused argument in __lock_release")
@nested is no longer used in lock_release(), so remove it from all
lock_release() calls and friends.
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: alexander.levin@microsoft.com
Cc: daniel@iogearbox.net
Cc: davem@davemloft.net
Cc: dri-devel@lists.freedesktop.org
Cc: duyuyang@gmail.com
Cc: gregkh@linuxfoundation.org
Cc: hannes@cmpxchg.org
Cc: intel-gfx@lists.freedesktop.org
Cc: jack@suse.com
Cc: jlbec@evilplan.or
Cc: joonas.lahtinen@linux.intel.com
Cc: joseph.qi@linux.alibaba.com
Cc: jslaby@suse.com
Cc: juri.lelli@redhat.com
Cc: maarten.lankhorst@linux.intel.com
Cc: mark@fasheh.com
Cc: mhocko@kernel.org
Cc: mripard@kernel.org
Cc: ocfs2-devel@oss.oracle.com
Cc: rodrigo.vivi@intel.com
Cc: sean@poorly.run
Cc: st@kernel.org
Cc: tj@kernel.org
Cc: tytso@mit.edu
Cc: vdavydov.dev@gmail.com
Cc: vincent.guittot@linaro.org
Cc: viro@zeniv.linux.org.uk
Link: https://lkml.kernel.org/r/1568909380-32199-1-git-send-email-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
278 lines
7.6 KiB
C
278 lines
7.6 KiB
C
#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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
#endif /* !CONFIG_GENERIC_LOCKBREAK || CONFIG_DEBUG_LOCK_ALLOC */
|
|
|
|
static inline void __raw_write_unlock(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_write_unlock(lock);
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void __raw_read_unlock(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_read_unlock(lock);
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void
|
|
__raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_read_unlock(lock);
|
|
local_irq_restore(flags);
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void __raw_read_unlock_irq(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_read_unlock(lock);
|
|
local_irq_enable();
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void __raw_read_unlock_bh(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_read_unlock(lock);
|
|
__local_bh_enable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET);
|
|
}
|
|
|
|
static inline void __raw_write_unlock_irqrestore(rwlock_t *lock,
|
|
unsigned long flags)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_write_unlock(lock);
|
|
local_irq_restore(flags);
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void __raw_write_unlock_irq(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_write_unlock(lock);
|
|
local_irq_enable();
|
|
preempt_enable();
|
|
}
|
|
|
|
static inline void __raw_write_unlock_bh(rwlock_t *lock)
|
|
{
|
|
rwlock_release(&lock->dep_map, _RET_IP_);
|
|
do_raw_write_unlock(lock);
|
|
__local_bh_enable_ip(_RET_IP_, SOFTIRQ_LOCK_OFFSET);
|
|
}
|
|
|
|
#endif /* __LINUX_RWLOCK_API_SMP_H */
|