Message-ID: <4FDA519F.4080204@redhat.com>
Date: Thu, 14 Jun 2012 17:03:27 -0400
From: Rik van Riel <riel@redhat.com>
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To: "H. Peter Anvin" <hpa@linux.intel.com>
CC: Borislav Petkov <bp@amd64.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
        sjhill@mips.com, ralf@linux-mips.org,
        Rob Herring <rob.herring@calxeda.com>,
        Russell King <rmk+kernel@arm.linux.org.uk>,
        Nicolas Pitre <nico@linaro.org>
Subject: Re: bugs in page colouring code
References: <20120613152936.363396d5@cuia.bos.redhat.com> <20120614103627.GA25940@aftab.osrc.amd.com> <4FD9DFCE.1070609@redhat.com> <4FDA5087.7090606@linux.intel.com>
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On 06/14/2012 04:58 PM, H. Peter Anvin wrote:
> On 06/14/2012 05:57 AM, Rik van Riel wrote:
>>
>> However, I expect that on x86 many applications expect
>> MAP_FIXED to just work, and enforcing that would be
>> more trouble than it's worth.
>>
>
> MAP_FIXED, is well, fixed.  It means that performance be screwed, if we
> can fulfill the request we MUST do so.

My codebase now has a separate arch_align_addr function
for x86, which is surprisingly similar to the generic
one :)
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