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SubjectRe: [PATCH] Fix data race in mark_rt_mutex_waiters
On Tue, Jan 24, 2023 at 10:42:24AM -0500, Waiman Long wrote:

> I would suggest to do it as suggested by PeterZ. Instead of set_bit(),
> however, it is probably better to use atomic_long_or() like
>
> atomic_long_or_relaxed(RT_MUTEX_HAS_WAITERS, (atomic_long_t *)&lock->owner)

That function doesn't exist, atomic_long_or() is implicitly relaxed for
not returning a value.

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