From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>
Subject: Re: [PATCH 00/10] mm: adjust get_user_pages* functions
 to explicitly pass FOLL_* flags
Date: Thu, 13 Oct 2016 09:32:51 +0200
Message-ID: <914b917f-6871-2ba3-95ba-981dd2855743@amd.com>
References: <20161013002020.3062-1-lstoakes@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Cc: linux-mips@linux-mips.org, linux-fbdev@vger.kernel.org,
 Jan Kara <jack@suse.cz>, kvm@vger.kernel.org, linux-sh@vger.kernel.org,
 Dave Hansen <dave.hansen@linux.intel.com>, dri-devel@lists.freedesktop.org,
 sparclinux@vger.kernel.org, linux-ia64@vger.kernel.org,
 linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
 linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org, x86@kernel.org,
 Hugh Dickins <hughd@google.com>, linux-media@vger.kernel.org,
 Rik van Riel <riel@redhat.com>, intel-gfx@lists.freedesktop.org,
 adi-buildroot-devel@lists.sourceforge.net, ceph-devel@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, Mel Gorman <mgorman@techsingularity.net>,
 linux-cris-kernel@axis.com, netdev@vger.kernel.org,
 linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
 linux-security-module@vger.kernel.org, linux-alpha@vger.kernel.org,
 linux-fsdevel@vger.kernel.org
To: Lorenzo Stoakes <lstoakes@gmail.com>, <linux-mm@kvack.org>
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
In-Reply-To: <20161013002020.3062-1-lstoakes@gmail.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
List-Id: netdev.vger.kernel.org
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