Re: aio stress panic on 2.6.11-mm1

[Andrew Morton]

Suparna Bhattacharya <suparna@xxxxxxxxxx> wrote:
>
> Any sense of how costly it is to use spin_lock_irq's vs spin_lock
>  (across different architectures) ? Isn't rwsem used very widely ?

It's only on the slow path, and we've already done a bunch of atomic ops
and a schedule()/wakeup() anyway.
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