linux-kernel - Re: [PATCH 1/4 linux-next] xfs: use swap() in xfs_dir2_leafn

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Message-ID: <20150518171946.GY7232@ZenIV.linux.org.uk>
Date:	Mon, 18 May 2015 18:19:46 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Fabian Frederick <fabf@...net.be>
Cc:	linux-kernel@...r.kernel.org, Dave Chinner <david@...morbit.com>,
	xfs@....sgi.com
Subject: Re: [PATCH 1/4 linux-next] xfs: use swap() in
 xfs_dir2_leafn_rebalance()

On Mon, May 18, 2015 at 07:13:48PM +0200, Fabian Frederick wrote:
>  	 * If the block order is wrong, swap the arguments.
>  	 */
> -	if ((swap = xfs_dir2_leafn_order(dp, blk1->bp, blk2->bp))) {
> -		xfs_da_state_blk_t	*tmp;	/* temp for block swap */
> +	swap = xfs_dir2_leafn_order(dp, blk1->bp, blk2->bp);
> +	if (swap)
> +		swap(blk1, blk2);

Egads...  Have you even read what you'd written?  Yes, sure, preprocessor
will do the right thing, but it's a very noticable annoyance for somebody
reading that.  Rename the bleeding flag, please.
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