linux-kernel - Re: + getrusage-fill-ru_inblock-and-ru_oublock-fields-if-possible.patch added to -mm tree

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Date:	Fri, 16 Mar 2007 18:34:23 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: + getrusage-fill-ru_inblock-and-ru_oublock-fields-if-possible.patch added to -mm tree

On Friday 16 March 2007 18:23, Eric Dumazet wrote:

>
> Very good point, you found a bug in k_getrusage().
>
> I just followed the existing logic, but it seems this logic is bad.
>
> So not only ru_inblock/ru_oublock are multiplied by 3 : others fields as
> well are wrong.
>
> Also the definition of RUSAGE_CHILDREN is not conformant to standard
>
> http://www.opengroup.org/onlinepubs/009695399/functions/getrusage.html
>
> 	"If the value of the who argument is RUSAGE_CHILDREN, information shall be
> 	"returned about resources used by the terminated and waited-for children
> of "the current process
>
> We currently do a sum of rusage stats of still alive children.. thats
> totally wrong...

Please ignore this mail, I was very wrong.

I shall rethink a proper patch.
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