On Wed, 2006-08-16 at 09:43 -0700, Roland Dreier wrote:
> Arjan, here's a case that disproves your rule of thumb that rwsems
> are equivalent to mutexes as far as correctness goes: you can't have
> an AB-BA deadlock with nested rwsems when using down_read(). In other
> words, the following:
>
>
Arjan, here's a case that disproves your rule of thumb that rwsems
are equivalent to mutexes as far as correctness goes: you can't have
an AB-BA deadlock with nested rwsems when using down_read(). In other
words, the following:
down_read(&lock_1);
d
