linux-kernel - Re: [RESEND PATCH] sysctl: Enable IA64 "ignore-unaligned-usertrap" to be used cross-arch

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Date:	Wed, 9 Jan 2013 19:44:35 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
To:	Tony Luck <tony.luck@...el.com>
CC:	Fenghua Yu <fenghua.yu@...el.com>, <linux-kernel@...r.kernel.org>,
	<linux-ia64@...r.kernel.org>, <linux-arch@...r.kernel.org>,
	<arnd@...db.de>, "Eric W. Biederman" <ebiederm@...ssion.com>,
	Serge Hallyn <serge.hallyn@...onical.com>
Subject: Re: [RESEND PATCH] sysctl: Enable IA64 "ignore-unaligned-usertrap"
 to be used cross-arch

On Wednesday 09 January 2013 05:13 AM, Tony Luck wrote:
> On Wed, Jan 2, 2013 at 10:47 PM, Vineet Gupta
> <Vineet.Gupta1@...opsys.com> wrote:
>
>
>> +config SYSCTL_ARCH_UNALIGN_NO_WARN
>> +       bool
>> +       help
>> +         Enable support for /proc/sys/kernel/ignore-unaligned-usertrap
>> +         Allows arch to define/use @no_unaligned_warning to possbly warn about
> "possibly"
>> +         unaligned access emulation going on under the hood.
>> +         see arch/ia64/kernel/unaligned.c for reference
> It doesn't seem right to point users at an ia64 specific file now
> that you are making this available to all arches.

The ia64 "reference" is for how the sysctl knob is used - since all we are doing
is moving just the sysctl out of #ifdef ARCH_XYZ.
At any rate, I've removed the line from help. Revised patch to follow.
And as initially requested this will need to go thru IA64-next tree to avoid any
merge dependencies.

TIA,
-Vineet
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