From patchwork Wed Jan 31 09:33:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miles Chen X-Patchwork-Id: 10193589 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1E27B603EE for ; Wed, 31 Jan 2018 09:34:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0A4BA28604 for ; Wed, 31 Jan 2018 09:34:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F28EE2860F; Wed, 31 Jan 2018 09:34:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_MED, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 88BD428604 for ; Wed, 31 Jan 2018 09:34:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=PxZMWYhsts32GSmTi9pw9y6glRMIYwI39yjGH/74F8M=; b=NAlGM8ETh2gdHs mUMjg4M9TeroA81oyHFlVYNYDil736FUzXhc8+ziA4zY3s5uZyFH6qBqlI5vUemNfxFz4m2mlEycv chzEKG9E/I1+2mUJJhfwQqNxldsBtsZGtRUg4yc1eJKMYdfcd3KR9ALfXBK81aM/ojjNNh3PYYN7s qYhuJMrHBfZr+QPz32PxNscGw0XI5tav5RDroXwruL85c+i774uDyjllw74FJVKZXNfgzRVcvsaMl YZy4bzZIpCnwJ4YCSeiGFVWxnZmKqmymfv0tuyCpGu262spRjYNfEOcCzGKuBUlK1+9MdpNuuVzcF V60NuhKlNPQFodctQjpA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1egomU-0004Do-8H; Wed, 31 Jan 2018 09:34:14 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1egomR-0004D0-6A for linux-mediatek@lists.infradead.org; Wed, 31 Jan 2018 09:34:12 +0000 X-UUID: 7d1ad975965a4f48bc1164397028a240-20180131 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1545143223; Wed, 31 Jan 2018 17:33:38 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Wed, 31 Jan 2018 17:33:36 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Wed, 31 Jan 2018 17:33:36 +0800 From: To: Matthias Brugger , Andrew Morton , Huang Ying , Kate Stewart , Greg Kroah-Hartman , Thomas Gleixner , Michal Hocko Subject: [PATCH] mm: Remove PG_highmem description Date: Wed, 31 Jan 2018 17:33:32 +0800 Message-ID: <1517391212-2950-1-git-send-email-miles.chen@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-MTK: N X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Miles Chen , linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, wsd_upstream@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Miles Chen The commit cbe37d093707 ("[PATCH] mm: remove PG_highmem") has removed PG_highmem to save a page flag. So the description of PG_highmem is no longer needed, remove it. Signed-off-by: Miles Chen Acked-by: Michal Hocko --- include/linux/page-flags.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3ec44e27aa9d..50c2b8786831 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -46,11 +46,6 @@ * guarantees that this bit is cleared for a page when it first is entered into * the page cache. * - * PG_highmem pages are not permanently mapped into the kernel virtual address - * space, they need to be kmapped separately for doing IO on the pages. The - * struct page (these bits with information) are always mapped into kernel - * address space... - * * PG_hwpoison indicates that a page got corrupted in hardware and contains * data with incorrect ECC bits that triggered a machine check. Accessing is * not safe since it may cause another machine check. Don't touch!