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lx_emul: provide irqsave/restore write-lock functions

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This commit is contained in:
Christian Helmuth 2022-11-03 16:04:28 +01:00
parent 6d14f5442e
commit b59ec55d50
1 changed files with 22 additions and 0 deletions
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22
repos/dde_linux/src/lib/lx_emul/shadow/kernel/locking/spinlock.c
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@ -1,6 +1,8 @@
/*
* \brief Replaces kernel/locking/spinlock.c
* \author Stefan Kalkowski
* \author Johannes Schlatow
* \author Christian Helmuth
* \date 2021-03-16
*
* We run single-core, cooperatively scheduled. We should never spin.
@ -182,3 +184,23 @@ void __lockfunc _raw_read_lock_bh(rwlock_t * lock)
arch_read_lock(&(lock)->raw_lock);
}
#endif
#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
{
unsigned long flags;
local_irq_save(flags);
arch_write_lock(&(lock)->raw_lock);
return flags;
}
#endif
#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
{
arch_write_unlock(&(lock)->raw_lock);
local_irq_restore(flags);
}
#endif