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SubjectRe: Real-Time Preemption and RCU
Ingo Molnar wrote:

> read_lock(&rwlock);
> ...
> read_lock(&rwlock);
>are still legal. (it's also done quite often.)
How do you handle the write_lock_irq()/read_lock locks?
E.g. the tasklist_lock or the fasync_lock.

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