linux-kernel - RE: [PATCH 3/3] HWPOISON, hugetlbfs: fix RSS-counter warning

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Date:	Wed, 5 Dec 2012 22:04:50 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Kleen, Andi" <andi.kleen@...el.com>
CC:	"Wu, Fengguang" <fengguang.wu@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: RE: [PATCH 3/3] HWPOISON, hugetlbfs: fix RSS-counter warning

	if (PageHWPoison(page) && !(flags & TTU_IGNORE_HWPOISON)) {
-		if (PageAnon(page))
+		if (PageHuge(page))
+			;
+		else if (PageAnon(page))
 			dec_mm_counter(mm, MM_ANONPAGES);
 		else
 			dec_mm_counter(mm, MM_FILEPAGES);

This style minimizes the "diff" ... but wouldn't it be nicer to say:

		if (!PageHuge(page)) {
			old code in here
		}

-Tony
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