Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753440AbbDQCKG (ORCPT ); Thu, 16 Apr 2015 22:10:06 -0400 Received: from TYO201.gate.nec.co.jp ([210.143.35.51]:37354 "EHLO tyo201.gate.nec.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752565AbbDQCJy convert rfc822-to-8bit (ORCPT ); Thu, 16 Apr 2015 22:09:54 -0400 From: Naoya Horiguchi To: Andrew Morton CC: Dean Nelson , Andi Kleen , "Andrea Arcangeli" , Hidetoshi Seto , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Subject: [PATCH 2/2] mm/hwpoison-inject: check PageLRU of hpage Thread-Topic: [PATCH 2/2] mm/hwpoison-inject: check PageLRU of hpage Thread-Index: AQHQeLNzVkna+kmxgECwtoO4bT0bTA== Date: Fri, 17 Apr 2015 02:08:52 +0000 Message-ID: <1429236509-8796-2-git-send-email-n-horiguchi@ah.jp.nec.com> References: <1429236509-8796-1-git-send-email-n-horiguchi@ah.jp.nec.com> In-Reply-To: <1429236509-8796-1-git-send-email-n-horiguchi@ah.jp.nec.com> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.128.101.1] Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1233 Lines: 37 Hwpoison injector checks PageLRU of the raw target page to find out whether the page is an appropriate target, but current code now filters out thp tail pages, which prevents us from testing for such cases via this interface. So let's check hpage instead of p. Signed-off-by: Naoya Horiguchi --- mm/hwpoison-inject.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git v4.0.orig/mm/hwpoison-inject.c v4.0/mm/hwpoison-inject.c index 2b3f933e3282..4ca5fe0042e1 100644 --- v4.0.orig/mm/hwpoison-inject.c +++ v4.0/mm/hwpoison-inject.c @@ -34,12 +34,12 @@ static int hwpoison_inject(void *data, u64 val) if (!hwpoison_filter_enable) goto inject; - if (!PageLRU(p) && !PageHuge(p)) - shake_page(p, 0); + if (!PageLRU(hpage) && !PageHuge(p)) + shake_page(hpage, 0); /* * This implies unable to support non-LRU pages. */ - if (!PageLRU(p) && !PageHuge(p)) + if (!PageLRU(hpage) && !PageHuge(p)) goto put_out; /* -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/