Re: [patch] lockless, scalable get_pid(), for_each_process() elimination, 2.5.35-BK

From: Linus Torvalds (torvalds@transmeta.com)
Date: Wed Sep 18 2002 - 12:16:26 EST

On Wed, 18 Sep 2002, Rik van Riel wrote:
>
> That's about 18 times the timeout for the NMI oopser and will cause
> people real trouble.

Where did this NMI oopser argument come from? get_pid() doesn't even
disable interrupts. And we hold the read lock, and other interrupts aren't
allowed to take the write lock anyway. If the NMI oopser triggers, then
something else is going on than get_pid().

                Linus

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