linux-kernel - Re: [PATCH/RFC] Have sane default values for cpusets

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Message-ID: <m2x6599ad831005121236ufa1bff7fz78423b1fb6b513e7@mail.gmail.com>
Date:	Wed, 12 May 2010 12:36:57 -0700
From:	Paul Menage <menage@...gle.com>
To:	Dhaval Giani <dhaval.giani@...il.com>
Cc:	balbir@...ux.vnet.ibm.com, peterz@...radead.org,
	lennart@...ttering.net, jsafrane@...hat.com, tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH/RFC] Have sane default values for cpusets

On Wed, May 12, 2010 at 12:29 PM, Dhaval Giani <dhaval.giani@...il.com> wrote:
>> I think the idea is reasonable - the only way that I could see it
>> breaking someone would be code that currently does something like:
>>
>> mkdir A
>> mkdir B
>> echo 1 > A/mem_exclusive
>> echo 1 > B/mem_exclusive
>> echo $mems_for_a > A/mems
>> echo $mems_for_b > B/mems
>>
>> The attempts to set the mem_exclusive flags would fail, since A and B
>> would both have all of the parent's mems.
>>
>
> But would this not fail otherwise?
>

Assuming that mems_for_a and mems_for_b were disjoint, it would be
fine currently.

Paul
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