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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no 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 E33C0C2D0EA for ; Wed, 8 Apr 2020 13:27:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A7DEC20747 for ; Wed, 8 Apr 2020 13:27:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="dwdAPsDT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A7DEC20747 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kroah.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=X8lBGPAzuWoGit0uM6fcM3pCgSYqSuBGp2IaG1wZk2k=; b=dwdAPsDTpiTv6w VZAtiMNsJn7pLj/DKH9qhhft9UFSif6h1a3L9nFQyKt6w38uvoHpk/EBn7QF8HTONjnPfBMWrfFsU ASOKpVcWiLK5tgIvyX5nrkO2G9Wq7PLk4POsRBJV3woQ8juLxoMVK81hO1fhjK3dDM6apo/ROYPDb DKpSX/N/hDc5ZMoBwQzcXVD+YQRZRUg2Vne0LXVe1yGmKuvrwBZ47ggoSibDQuPFxxDvdRSatKvYk Bx4Y4rt3heyQRfexXVExkmlcPe+YDU55f0fYQgLrLAUWs6cd2t1h6rQsXbmMNxd3y9z2iXN32/+Ro U47SiVD07M/rdfrfyK9A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jMAjh-0003RT-0B; Wed, 08 Apr 2020 13:27:21 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jMAjd-0003RA-Vp for linux-arm-kernel@lists.infradead.org; Wed, 08 Apr 2020 13:27:19 +0000 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CE58E2072A; Wed, 8 Apr 2020 13:27:16 +0000 (UTC) Date: Wed, 8 Apr 2020 15:27:13 +0200 From: Greg KH To: Christoph Hellwig Subject: Re: [PATCH 02/28] staging: android: ion: use vmap instead of vm_map_ram Message-ID: <20200408132713.GA1248058@kroah.com> References: <20200408115926.1467567-1-hch@lst.de> <20200408115926.1467567-3-hch@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200408115926.1467567-3-hch@lst.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200408_062718_043235_CC28D062 X-CRM114-Status: UNSURE ( 8.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-hyperv@vger.kernel.org, David Airlie , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, "K. Y. Srinivasan" , Sumit Semwal , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Wei Liu , Stephen Hemminger , x86@kernel.org, Peter Zijlstra , Laura Abbott , Nitin Gupta , Daniel Vetter , Haiyang Zhang , linaro-mm-sig@lists.linaro.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Christophe Leroy , Robin Murphy , linux-kernel@vger.kernel.org, Minchan Kim , iommu@lists.linux-foundation.org, Sakari Ailus , Andrew Morton , linuxppc-dev@lists.ozlabs.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 08, 2020 at 01:59:00PM +0200, Christoph Hellwig wrote: > vm_map_ram can keep mappings around after the vm_unmap_ram. Using that > with non-PAGE_KERNEL mappings can lead to all kinds of aliasing issues. > > Signed-off-by: Christoph Hellwig Acked-by: Greg Kroah-Hartman _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel