From patchwork Mon Dec 10 17:12:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Goyal X-Patchwork-Id: 10721911 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F273215A6 for ; Mon, 10 Dec 2018 17:18:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D46522AF3C for ; Mon, 10 Dec 2018 17:18:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C880F2AF40; Mon, 10 Dec 2018 17:18:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 865492AF3C for ; Mon, 10 Dec 2018 17:18:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728970AbeLJRRu (ORCPT ); Mon, 10 Dec 2018 12:17:50 -0500 Received: from mx1.redhat.com ([209.132.183.28]:50516 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728374AbeLJRNf (ORCPT ); Mon, 10 Dec 2018 12:13:35 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E99C730B8FB2; Mon, 10 Dec 2018 17:13:34 +0000 (UTC) Received: from horse.redhat.com (unknown [10.18.25.234]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9A4016015E; Mon, 10 Dec 2018 17:13:34 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 564BE22425F; Mon, 10 Dec 2018 12:13:30 -0500 (EST) From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 21/52] fuse: Introduce fuse_dax_mapping Date: Mon, 10 Dec 2018 12:12:47 -0500 Message-Id: <20181210171318.16998-22-vgoyal@redhat.com> In-Reply-To: <20181210171318.16998-1-vgoyal@redhat.com> References: <20181210171318.16998-1-vgoyal@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Mon, 10 Dec 2018 17:13:35 +0000 (UTC) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce fuse_dax_mapping. This type will be used to keep track of per inode dax mappings. Signed-off-by: Vivek Goyal --- fs/fuse/fuse_i.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 345abe9b022f..b9880be690bd 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -81,6 +81,15 @@ struct fuse_forget_link { struct fuse_forget_link *next; }; +/** Translation information for file offsets to DAX window offsets */ +struct fuse_dax_mapping { + /** Position in DAX window */ + u64 window_offset; + + /** Length of mapping, in bytes */ + loff_t length; +}; + /** FUSE inode */ struct fuse_inode { /** Inode data */