void _write_lock_irq(rwlock_t *lock)
{
ASSERT(local_irq_is_enabled());
local_irq_disable();
check_lock(&lock->debug);
_raw_write_lock(&lock->raw);
}
unsigned long _write_lock_irqsave(rwlock_t *lock)
{
unsigned long flags;
local_irq_save(flags);
check_lock(&lock->debug);
_raw_write_lock(&lock->raw);
return flags;
}
unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock)
{
unsigned long flags;
local_irq_save(flags);
preempt_disable();
_raw_write_lock(lock);
return flags;
}
static inline void __preempt_write_lock(rwlock_t *lock)
{
if (preempt_count() > 1) {
_raw_write_lock(lock);
return;
}
do {
preempt_enable();
while (rwlock_is_locked(lock))
cpu_relax();
preempt_disable();
} while (!_raw_write_trylock(lock));
}
void _write_lock(rwlock_t *lock)
{
check_lock(&lock->debug);
_raw_write_lock(&lock->raw);
}
void __lockfunc _write_lock(rwlock_t *lock)
{
preempt_disable();
_raw_write_lock(lock);
}
void __lockfunc _write_lock_bh(rwlock_t *lock)
{
local_bh_disable();
preempt_disable();
_raw_write_lock(lock);
}