From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_NEOMUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B347C10F05 for ; Mon, 1 Apr 2019 20:08:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1FE7E20857 for ; Mon, 1 Apr 2019 20:08:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726352AbfDAUIH (ORCPT ); Mon, 1 Apr 2019 16:08:07 -0400 Received: from mx2.suse.de ([195.135.220.15]:56186 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725895AbfDAUIH (ORCPT ); Mon, 1 Apr 2019 16:08:07 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id AB66AAB6D; Mon, 1 Apr 2019 20:08:05 +0000 (UTC) Date: Mon, 1 Apr 2019 15:08:03 -0500 From: Goldwyn Rodrigues To: Adam Borowski Cc: linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, marcin.slusarz@intel.com Subject: Re: [PATCH] btrfs: allow MAP_SYNC mmap Message-ID: <20190401200803.k4cm4cbcj6cthy3d@merlin> References: <20190327232635.zw4edleqwowxfzej@merlin> <20190328102418.5466-1-kilobyte@angband.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190328102418.5466-1-kilobyte@angband.pl> User-Agent: NeoMutt/20180323 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 11:24 28/03, Adam Borowski wrote: > Used by userspace to detect DAX. Thanks. I will add it to the series. > > Signed-off-by: Adam Borowski > --- > fs/btrfs/file.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c > index 196c8f37ff9d..8efdb040bc1d 100644 > --- a/fs/btrfs/file.c > +++ b/fs/btrfs/file.c > @@ -16,6 +16,7 @@ > #include > #include > #include > +#include > #include "ctree.h" > #include "disk-io.h" > #include "transaction.h" > @@ -3320,6 +3321,7 @@ const struct file_operations btrfs_file_operations = { > .splice_read = generic_file_splice_read, > .write_iter = btrfs_file_write_iter, > .mmap = btrfs_file_mmap, > + .mmap_supported_flags = MAP_SYNC, > .open = btrfs_file_open, > .release = btrfs_release_file, > .fsync = btrfs_sync_file, > -- > 2.20.1 > -- Goldwyn