linux-kernel - Re: [PATCH 18/22] Use allocation flags as an index to the zone watermark

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Message-Id: <1240422423.10627.96.camel@nimitz>
Date:	Wed, 22 Apr 2009 10:47:03 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Linux Memory Management List <linux-mm@...ck.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lin Ming <ming.m.lin@...el.com>,
	Zhang Yanmin <yanmin_zhang@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 18/22] Use allocation flags as an index to the zone
	watermark

On Wed, 2009-04-22 at 18:14 +0100, Mel Gorman wrote:
> Preference of taste really. When I started a conversion to accessors, it
> changed something recognised to something new that looked uglier to me.
> Only one place cares about the union enough to access is via an array so
> why spread it everywhere.

Personally, I'd say for consistency.  Someone looking at both forms
wouldn't necessarily know that they refer to the same variables unless
they know about the union.

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