linux-kernel - Re: [PATCH] cpuset: Rework sched domains and CPU hotplug handling (take 4)

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Message-ID: <48A1BCAB.2090502@qualcomm.com>
Date:	Tue, 12 Aug 2008 09:39:07 -0700
From:	Max Krasnyansky <maxk@...lcomm.com>
To:	Paul Jackson <pj@....com>
CC:	Rakib Mullick <rakib.mullick@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpuset: Rework sched domains and CPU hotplug handling
 (take 4)



Paul Jackson wrote:
> Rakib wrote:
>> Ok, this is the second place. But, what about the first place ( I
>> mean in line 614).
> 
> You present me with a clear choice.
> 
>     I could find your past patch, applying it to whatever it applied to,
>     and look to see what was at line 614.
> 
>     Or I could ask you to restate your point, with enough code
>     displayed so that I could understand your point just by reading
>     your email.
> 
> I choose the second choice.  Thank-you.

I think Rakib is talking about this code

>         /* Special case for the 99% of systems with one, full, sched domain */
>         if (is_sched_load_balance(&top_cpuset)) {
>                 doms = kmalloc(sizeof(cpumask_t), GFP_KERNEL);
>                 if (!doms)
>                         goto done;
> 
>                 dattr = kmalloc(sizeof(struct sched_domain_attr), GFP_KERNEL);
>                 if (dattr) {
>                         *dattr = SD_ATTR_INIT;
>                         update_domain_attr_tree(dattr, &top_cpuset);
>                 }
>                 *doms = top_cpuset.cpus_allowed;
> 
>                 ndoms = 1;
>                 goto done;
>         }

Which I think is perfectly fine and clear.

There are only two matches for
	/attr.*=.*alloc
We covered both of them.

Max



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