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Message-ID: <1337645958.1997.172.camel@sbsiddha-desk.sc.intel.com>
Date: Mon, 21 May 2012 17:19:18 -0700
From: Suresh Siddha <suresh.b.siddha@...el.com>
To: Alexander Gordeev <agordeev@...hat.com>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org,
Cyrill Gorcunov <gorcunov@...nvz.org>,
Yinghai Lu <yinghai@...nel.org>
Subject: Re: [PATCH 3/3][RFC] x86: x2apic/cluster: Do not handle cpumask
allocation errors
On Fri, 2012-05-18 at 12:26 +0200, Alexander Gordeev wrote:
> With this fix allocations of cpumasks are assumed always successfull
> and possible failures result in BUG().
BUG check for memory allocation failures in IPI path is not a good idea.
We will be using IPI's to flush TLB's before we evict the pages for
recovering from low-memory conditions. We need to provide a clean fall
back path.
So NAK.
thanks,
suresh
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