From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([198.137.202.133]:44600 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725267AbfFFGSZ (ORCPT ); Thu, 6 Jun 2019 02:18:25 -0400 Date: Wed, 5 Jun 2019 23:18:19 -0700 From: Christoph Hellwig Subject: Re: [PATCH RFC 03/10] mm/gup: Pass flags down to __gup_device_huge* calls Message-ID: <20190606061819.GA20520@infradead.org> References: <20190606014544.8339-1-ira.weiny@intel.com> <20190606014544.8339-4-ira.weiny@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190606014544.8339-4-ira.weiny@intel.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: ira.weiny@intel.com Cc: Dan Williams , Jan Kara , Theodore Ts'o , Jeff Layton , Dave Chinner , Matthew Wilcox , linux-xfs@vger.kernel.org, Andrew Morton , John Hubbard , =?iso-8859-1?B?Suly9G1l?= Glisse , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-ext4@vger.kernel.org, linux-mm@kvack.org On Wed, Jun 05, 2019 at 06:45:36PM -0700, ira.weiny@intel.com wrote: > From: Ira Weiny > > In order to support checking for a layout lease on a FS DAX inode these > calls need to know if FOLL_LONGTERM was specified. > > Prepare for this with this patch. The GUP fast argument passing is a mess. That is why I've come up with this as part of the (not ready) get_user_pages_fast_bvec implementation: http://git.infradead.org/users/hch/misc.git/commitdiff/c3d019802dbde5a4cc4160e7ec8ccba479b19f97