From patchwork Tue Mar 26 19:03:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Goldwyn Rodrigues X-Patchwork-Id: 10872097 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 3EE2F18A6 for ; Tue, 26 Mar 2019 19:03:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2AC01289FC for ; Tue, 26 Mar 2019 19:03:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1F20F28C19; Tue, 26 Mar 2019 19:03:50 +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 C251228C9D for ; Tue, 26 Mar 2019 19:03:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732737AbfCZTDs (ORCPT ); Tue, 26 Mar 2019 15:03:48 -0400 Received: from mx2.suse.de ([195.135.220.15]:37174 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732730AbfCZTDr (ORCPT ); Tue, 26 Mar 2019 15:03:47 -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 829A0AEE6; Tue, 26 Mar 2019 19:03:46 +0000 (UTC) From: Goldwyn Rodrigues To: linux-btrfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, Goldwyn Rodrigues Subject: [PATCH 14/15] btrfs: Disable dax-based defrag and send Date: Tue, 26 Mar 2019 14:03:00 -0500 Message-Id: <20190326190301.32365-15-rgoldwyn@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190326190301.32365-1-rgoldwyn@suse.de> References: <20190326190301.32365-1-rgoldwyn@suse.de> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Goldwyn Rodrigues This is temporary, and a TODO. Signed-off-by: Goldwyn Rodrigues --- fs/btrfs/ioctl.c | 13 +++++++++++++ fs/btrfs/send.c | 4 ++++ 2 files changed, 17 insertions(+) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 2e5137b01561..f532a8df2026 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2980,6 +2980,12 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp) goto out; } + if (IS_DAX(inode)) { + btrfs_warn(root->fs_info, "File defrag is not supported with DAX"); + ret = -EOPNOTSUPP; + goto out; + } + if (argp) { if (copy_from_user(range, argp, sizeof(*range))) { @@ -4647,6 +4653,10 @@ static long btrfs_ioctl_balance(struct file *file, void __user *arg) if (!capable(CAP_SYS_ADMIN)) return -EPERM; + /* send can be on a directory, so check super block instead */ + if (btrfs_test_opt(fs_info, DAX)) + return -EOPNOTSUPP; + ret = mnt_want_write_file(file); if (ret) return ret; @@ -5499,6 +5509,9 @@ static int _btrfs_ioctl_send(struct file *file, void __user *argp, bool compat) struct btrfs_ioctl_send_args *arg; int ret; + if (IS_DAX(file_inode(file))) + return -EOPNOTSUPP; + if (compat) { #if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT) struct btrfs_ioctl_send_args_32 args32; diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 7ea2d6b1f170..9679fd54db86 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -6609,6 +6609,10 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg) int sort_clone_roots = 0; int index; + /* send can be on a directory, so check super block instead */ + if (btrfs_test_opt(fs_info, DAX)) + return -EOPNOTSUPP; + if (!capable(CAP_SYS_ADMIN)) return -EPERM;