From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 780376B0038 for ; Mon, 15 Aug 2016 17:11:08 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id h186so135926879pfg.2 for ; Mon, 15 Aug 2016 14:11:08 -0700 (PDT) Received: from mga01.intel.com (mga01.intel.com. [192.55.52.88]) by mx.google.com with ESMTP id g1si28321277pab.228.2016.08.15.14.11.07 for ; Mon, 15 Aug 2016 14:11:07 -0700 (PDT) Date: Mon, 15 Aug 2016 15:11:06 -0600 From: Ross Zwisler Subject: Re: [PATCH 0/7] re-enable DAX PMD support Message-ID: <20160815211106.GA31566@linux.intel.com> References: <20160815190918.20672-1-ross.zwisler@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Dan Williams Cc: Ross Zwisler , "linux-kernel@vger.kernel.org" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Andrew Morton , Dave Chinner , Jan Kara , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" On Mon, Aug 15, 2016 at 01:21:47PM -0700, Dan Williams wrote: > On Mon, Aug 15, 2016 at 12:09 PM, Ross Zwisler > wrote: > > DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based > > locking. This series allows DAX PMDs to participate in the DAX radix tree > > based locking scheme so that they can be re-enabled. > > Looks good to me. > > > This series restores DAX PMD functionality back to what it was before it > > was disabled. There is still a known issue between DAX PMDs and hole > > punch, which I am currently working on and which I plan to address with a > > separate series. > > Perhaps we should hold off on applying patch 6 and 7 until after the > hole-punch fix is ready? Sure, I'm cool with holding off on patch 7 (the Kconfig change) until after the hole punch fix is ready. I don't see a reason to hold off on patch 6, though? It stands on it's own, implements the correct locking, and doesn't break anything. -- 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