linux-kernel - Re: [PATCH v2 1/4] fork: move the real prepare_to_copy() users to arch_dup_task

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Message-ID: <1336695464.3881.71.camel@pasglop>
Date:	Fri, 11 May 2012 10:17:44 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	torvalds@...ux-foundation.org, hpa@...or.com, mingo@...e.hu,
	oleg@...hat.com, linux-kernel@...r.kernel.org,
	suresh@...stanetworks.com, David Howells <dhowells@...hat.com>,
	Koichi Yasutake <yasutake.koichi@...panasonic.com>,
	Paul Mackerras <paulus@...ba.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	Chris Zankel <chris@...kel.net>
Subject: Re: [PATCH v2 1/4] fork: move the real prepare_to_copy() users to
 arch_dup_task_struct()

On Thu, 2012-05-10 at 16:33 -0700, Suresh Siddha wrote:
> Historical prepare_to_copy() is mostly a no-op, duplicated for majority of
> the architectures and the rest following the x86 model of flushing the extended
> register state like fpu there.
> 
> Remove it and use the arch_dup_task_struct() instead.
> 
> Suggested-by: Oleg Nesterov <oleg@...hat.com>
> Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>
> Cc: David Howells <dhowells@...hat.com>
> Cc: Koichi Yasutake <yasutake.koichi@...panasonic.com>

For the powerpc part:

Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>

Cheers,
Ben.



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