linux-kernel - Re: [PATCHv2 03/24] sys_swapon: do not depend on "type" after allocation

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Message-ID: <AANLkTin3EWz4g_y03M7TOzAmD+wYJkR3a-cOJOy4ru07@mail.gmail.com>
Date:	Sat, 5 Mar 2011 19:07:11 +0200
From:	Pekka Enberg <penberg@...nel.org>
To:	Cesar Eduardo Barros <cesarb@...arb.net>
Cc:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Jens Axboe <jaxboe@...ionio.com>, linux-kernel@...r.kernel.org,
	Eric B Munson <emunson@...bm.net>
Subject: Re: [PATCHv2 03/24] sys_swapon: do not depend on "type" after allocation

On Sat, Mar 5, 2011 at 6:42 PM, Cesar Eduardo Barros <cesarb@...arb.net> wrote:
> Within sys_swapon, after the swap_info entry has been allocated, we
> always have type == p->type and swap_info[type] == p. Use this fact to
> reduce the dependency on the "type" local variable within the function,
> as a preparation to move the allocation of the swap_info entry to a
> separate function.
>
> Signed-off-by: Cesar Eduardo Barros <cesarb@...arb.net>
> Tested-by: Eric B Munson <emunson@...bm.net>
> Acked-by: Eric B Munson <emunson@...bm.net>

Reviewed-by: Pekka Enberg <penberg@...nel.org>
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