From: Max Krasnyansky <maxk@qualcomm.com>
To: Paul Jackson <pj@sgi.com>
Cc: rakib.mullick@gmail.com, menage@google.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] cpuset : Handling improper memory allocation.
Date: Wed, 06 Aug 2008 13:43:56 -0700 [thread overview]
Message-ID: <489A0D0C.1000204@qualcomm.com> (raw)
In-Reply-To: <20080806153700.dc12e5dc.pj@sgi.com>
Paul Jackson wrote:
> Max wrote:
>> partition_sched_domains() can deal with attrs==NULL case. So we do not
>> have to abort domain building.
>
> This might be a good place for a comment, since unchecked kmalloc()
> calls look dangerous:
>
> /* Convert <csn, csa> to <ndoms, doms> */
> doms = kmalloc(ndoms * sizeof(cpumask_t), GFP_KERNEL);
> if (!doms)
> goto rebuild;
> dattr = kmalloc(ndoms * sizeof(struct sched_domain_attr), GFP_KERNEL);
> /* dattr == NULL is ok; partition_sched_domains() can cope with it. */
Makes sense. I'll add it, since I'm touching that area anyway.
Max
prev parent reply other threads:[~2008-08-06 20:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-06 17:22 Rakib Mullick
2008-08-06 20:13 ` Max Krasnyansky
2008-08-06 20:37 ` Paul Jackson
2008-08-06 20:43 ` Max Krasnyansky [this message]
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