From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f69.google.com (mail-pa0-f69.google.com [209.85.220.69]) by kanga.kvack.org (Postfix) with ESMTP id 2749B6B007E for ; Fri, 29 Apr 2016 16:29:28 -0400 (EDT) Received: by mail-pa0-f69.google.com with SMTP id dx6so187275465pad.0 for ; Fri, 29 Apr 2016 13:29:28 -0700 (PDT) Received: from mga04.intel.com (mga04.intel.com. [192.55.52.120]) by mx.google.com with ESMTP id l5si18077304pfi.243.2016.04.29.13.29.27 for ; Fri, 29 Apr 2016 13:29:27 -0700 (PDT) Date: Fri, 29 Apr 2016 14:29:26 -0600 From: Ross Zwisler Subject: Re: [PATCH 15/18] dax: Allow DAX code to replace exceptional entries Message-ID: <20160429202926.GI5888@linux.intel.com> References: <1461015341-20153-1-git-send-email-jack@suse.cz> <1461015341-20153-16-git-send-email-jack@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1461015341-20153-16-git-send-email-jack@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Jan Kara Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-mm@kvack.org, Ross Zwisler , Dan Williams , linux-nvdimm@lists.01.org, Matthew Wilcox On Mon, Apr 18, 2016 at 11:35:38PM +0200, Jan Kara wrote: > Currently we forbid page_cache_tree_insert() to replace exceptional radix > tree entries for DAX inodes. However to make DAX faults race free we will > lock radix tree entries and when hole is created, we need to replace > such locked radix tree entry with a hole page. So modify > page_cache_tree_insert() to allow that. > > Signed-off-by: Jan Kara Reviewed-by: Ross Zwisler -- 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