From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f70.google.com (mail-wm0-f70.google.com [74.125.82.70]) by kanga.kvack.org (Postfix) with ESMTP id 9BB066B0038 for ; Wed, 29 Nov 2017 13:36:20 -0500 (EST) Received: by mail-wm0-f70.google.com with SMTP id p190so1813349wmd.0 for ; Wed, 29 Nov 2017 10:36:20 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id n82sor762058wmf.57.2017.11.29.10.36.19 for (Google Transport Security); Wed, 29 Nov 2017 10:36:19 -0800 (PST) Date: Wed, 29 Nov 2017 11:36:13 -0700 From: Jason Gunthorpe Subject: Re: [PATCH v3 4/4] IB/core: disable memory registration of fileystem-dax vmas Message-ID: <20171129183613.GD4011@ziepe.ca> References: <151197872943.26211.6551382719053304996.stgit@dwillia2-desk3.amr.corp.intel.com> <151197875158.26211.7203330105253426435.stgit@dwillia2-desk3.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <151197875158.26211.7203330105253426435.stgit@dwillia2-desk3.amr.corp.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Dan Williams Cc: akpm@linux-foundation.org, linux-nvdimm@lists.01.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Jeff Moyer , stable@vger.kernel.org, hch@lst.de, linux-mm@kvack.org, Doug Ledford , Ross Zwisler , Sean Hefty , Hal Rosenstock On Wed, Nov 29, 2017 at 10:05:51AM -0800, Dan Williams wrote: > Until there is a solution to the dma-to-dax vs truncate problem it is > not safe to allow RDMA to create long standing memory registrations > against filesytem-dax vmas. > > Cc: Sean Hefty > Cc: Doug Ledford > Cc: Hal Rosenstock > Cc: Jeff Moyer > Cc: Ross Zwisler > Cc: Jason Gunthorpe > Cc: > Cc: > Fixes: 3565fce3a659 ("mm, x86: get_user_pages() for dax mappings") > Reported-by: Christoph Hellwig > Reviewed-by: Christoph Hellwig > Signed-off-by: Dan Williams > drivers/infiniband/core/umem.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) No problem here with drivers/rdma. This will go through another tree with the rest of the series? In which case here is a co-maintainer ack for this patch: Acked-by: Jason Gunthorpe Dan, can you please update my address to jgg@ziepe.ca, thanks :) Jason -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org