Daniel Vidal:
> The rt patch is also downloaded from kernel.org. The exact URL is:
>
> https://www.kernel.org/pub/linux/kernel/projects/rt/3.4/patch-3.4.42-rt57.patch.gz
For the member 'owner', while the original struct mutex definition has a
preproessor condition, struct rtmutex doesn't.
struct mutex {
:::
#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_SMP)
struct task_struct *owner;
#endif
:::
};
and
struct rt_mutex {
:::
struct task_struct *owner;
:::
}
So it might be better to use i_mutex.lock.owner regardless CONFIG_DEBUG_MUTEXES
and CONFIG_SMP.
Additionally rtmutex.c defines rt_mutex_set_owner() and you should call
it instead of assgin directly I think.
Obviously you should test it well.
J. R. Okajima
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