linux-kernel - Re: [PATCHv2 09/24] sys_swapon: remove did

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Message-Id: <20110307184316.774840d5.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Mon, 7 Mar 2011 18:43:16 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Cesar Eduardo Barros <cesarb@...arb.net>
Cc:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.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 09/24] sys_swapon: remove did_down variable

On Sat,  5 Mar 2011 13:42:10 -0300
Cesar Eduardo Barros <cesarb@...arb.net> wrote:

> Since mutex_lock(&inode->i_mutex) is called just after setting inode,
> did_down is always equivalent to (inode && S_ISREG(inode->i_mode)).
> 
> Use this fact to remove the did_down variable.
> 
> 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: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

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