From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5AABFC43387 for ; Tue, 15 Jan 2019 15:41:17 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CC09120657 for ; Tue, 15 Jan 2019 15:41:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="KeZbh5ih" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC09120657 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43fF1Q5ntGzDqfr for ; Wed, 16 Jan 2019 02:41:14 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=batv+5981012d7a5c887cceec+5623+infradead.org+hch@bombadil.srs.infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="KeZbh5ih"; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 43fDzJ4pc3zDq7j for ; Wed, 16 Jan 2019 02:39:24 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=5EyMGjcH+MVx4U1hcDvZWtF5nX2K3jQqXYlXl42VTyA=; b=KeZbh5ihYprzLORoHOxTAFuJy jDopIMWvquSwhLbiv++4SZFzXgrhuqNZDrXGfRugccJB4MZVmOpIgfw1nzGaNnHI1G9bkxtk6wccW UpWck5KFPSkhZIXU0t3og5Gp54Q9vJzMi9REpj6sXfpyWFvJ+8bvBCZ0CzyWuSUTbM2VVEnUiPBa1 /cdxUb1HkmSs59+yWv9Y6SF4psQLKifB7OjqXo9UyORyrpL0mJtdBO4esFCLRQp/KU/rfE7EThais N3aqumNhUJS+Z5i+FGD4ROKaWZA1zji0J7UzqKPhpeouD5ScgGgKUuAYpXMYZ8/6E7g1bGwi8IKS9 TiRLPHvkQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gjQnX-0004NQ-Au; Tue, 15 Jan 2019 15:38:39 +0000 Date: Tue, 15 Jan 2019 07:38:39 -0800 From: Christoph Hellwig To: David Hildenbrand Subject: Re: [PATCH v2 0/9] mm: PG_reserved cleanups and documentation Message-ID: <20190115153839.GE26443@infradead.org> References: <20190114125903.24845-1-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190114125903.24845-1-david@redhat.com> User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Michal Hocko , CHANDAN VN , David Airlie , Bhupesh Sharma , Palmer Dabbelt , Heiko Carstens , Stefan Agner , Michal Hocko , David Howells , linux-mm@kvack.org, Paul Mackerras , linux-riscv@lists.infradead.org, Alexander Duyck , linux-s390@vger.kernel.org, Florian Fainelli , Arnd Bergmann , Pavel Tatashin , Matthew Wilcox , AKASHI Takahiro , Geert Uytterhoeven , Matthias Brugger , Catalin Marinas , Anthony Yznaga , Tobias Klauser , Laura Abbott , Fenghua Yu , Albert Ou , Kees Cook , Vasily Gorbik , Stephen Rothwell , Marc Zyngier , Will Deacon , linuxppc-dev@lists.ozlabs.org, Kristina Martsenko , linux-m68k@lists.linux-m68k.org, Dave Kleikamp , linux-mediatek@lists.infradead.org, Dan Williams , linux-arm-kernel@lists.infradead.org, Tony Luck , Greg Kroah-Hartman , Randy Dunlap , Oleg Nesterov , linux-kernel@vger.kernel.org, Miles Chen , Mike Rapoport , James Morse , Souptick Joarder , Johannes Weiner , Martin Schwidefsky , Andrew Morton , Logan Gunthorpe , Greg Hackmann Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, Jan 14, 2019 at 01:58:54PM +0100, David Hildenbrand wrote: > Nothing major changed since the last version. I would be happy about > additional ACKs. If there are no further comments, can this go via the > mm-tree in one chunk? > > I was recently going over all users of PG_reserved. Short story: it is > difficult and sometimes not really clear if setting/checking for > PG_reserved is only a relict from the past. Easy to break things. I > guess I now have a pretty good idea wh things are like that > nowadays and how they evolved. Any reason you skipped drivers/gpu/drm/drm_pci.c:drm_pci_alloc() and drivers/gpu/drm/drm_scatter.c:drm_legacy_sg_alloc() which both look completely bogus as-is? In fact we should probably just try to kill them off as they have very few users left.