From patchwork Wed Jul 3 17:14:33 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Behrens X-Patchwork-Id: 2818301 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0145FBF4A1 for ; Wed, 3 Jul 2013 17:15:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DEC04201DE for ; Wed, 3 Jul 2013 17:15:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BE331201D7 for ; Wed, 3 Jul 2013 17:15:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964822Ab3GCRO7 (ORCPT ); Wed, 3 Jul 2013 13:14:59 -0400 Received: from xp-ob.rzone.de ([81.169.146.138]:40451 "EHLO xp-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964820Ab3GCROn (ORCPT ); Wed, 3 Jul 2013 13:14:43 -0400 X-RZG-CLASS-ID: xp Received: from pizpot.store ([192.168.43.236]) by jorabe.store (jorabe xp2) (RZmta 31.28 OK) with ESMTP id g07dc1p63CAmFE for ; Wed, 3 Jul 2013 19:14:40 +0200 (CEST) From: Stefan Behrens To: linux-btrfs@vger.kernel.org Subject: [PATCH v7 2/8] Btrfs: support printing UUID tree elements Date: Wed, 3 Jul 2013 19:14:33 +0200 Message-Id: <17a70bd23862b919982d7f03d9dcb784f2ab71ac.1372866277.git.sbehrens@giantdisaster.de> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: References: In-Reply-To: References: Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This commit adds support to print UUID tree elements to print-tree.c. Signed-off-by: Stefan Behrens --- fs/btrfs/print-tree.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index dc0024f..b6b209c 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -155,6 +155,25 @@ static void print_extent_ref_v0(struct extent_buffer *eb, int slot) } #endif +static void print_uuid_item(struct extent_buffer *l, unsigned long offset, + u32 item_size) +{ + if (!IS_ALIGNED(item_size, sizeof(u64))) { + pr_warn("btrfs: uuid item with illegal size %lu!\n", + (unsigned long)item_size); + return; + } + while (item_size) { + __le64 subvol_id; + + read_extent_buffer(l, &subvol_id, offset, sizeof(subvol_id)); + printk(KERN_INFO "\t\tsubvol_id %llu\n", + (unsigned long long)le64_to_cpu(subvol_id)); + item_size -= sizeof(u64); + offset += sizeof(u64); + } +} + void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) { int i; @@ -301,6 +320,11 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) case BTRFS_DEV_REPLACE_KEY: printk(KERN_INFO "\t\tdev replace\n"); break; + case BTRFS_UUID_KEY_SUBVOL: + case BTRFS_UUID_KEY_RECEIVED_SUBVOL: + print_uuid_item(l, btrfs_item_ptr_offset(l, i), + btrfs_item_size_nr(l, i)); + break; }; } }