Re: [RFC] sys_setrlimit() in 2.6.16

From: Ingo Molnar
Date: Thu Feb 16 2006 - 04:47:05 EST



* Andrew Morton <akpm@xxxxxxxx> wrote:

> This has to be considered a bug. The spec certainly implies that a
> limit of zero should be honoured and, probably more importantly,
> that's how it works in 2.4.
>
> Problem is, the code in there all assumes that an it_prof_expires of
> zero means "it was never set", and changing that (add a yes-it-has
> flag?) would be less than trivial.
>
> So I think the path of least resistance here is to just convert the
> caller's zero seconds into one second. That in fact gives the same
> behaviour as 2.4: you get whacked after one second or more CPU time.
>
> (This is not a final patch - that revolting expression in
> sys_setrlimit() needs help first).

your approach looks good to me. It doesnt make much sense anyway to have
a task whacked right after startup ... so adding a common-sense "the
user must have meant some really small value" thing doesnt look all that
wrong.

Acked-by: Ingo Molnar <mingo@xxxxxxx>

Ingo
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