From patchwork Wed Jun 26 15:16:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Behrens X-Patchwork-Id: 2786341 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 243E89F245 for ; Wed, 26 Jun 2013 15:17:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0BD69204EF for ; Wed, 26 Jun 2013 15:16:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F88320504 for ; Wed, 26 Jun 2013 15:16:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751963Ab3FZPQr (ORCPT ); Wed, 26 Jun 2013 11:16:47 -0400 Received: from xp-ob.rzone.de ([81.169.146.141]:9171 "EHLO xp-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751585Ab3FZPQp (ORCPT ); Wed, 26 Jun 2013 11:16:45 -0400 X-RZG-CLASS-ID: xp Received: from pizpot.store ([192.168.43.236]) by josoe.store (josoe xp4) (RZmta 31.28 OK) with ESMTP id 6031fep5QF43I9 for ; Wed, 26 Jun 2013 17:16:42 +0200 (CEST) From: Stefan Behrens To: linux-btrfs@vger.kernel.org Subject: [PATCH v6 2/8] Btrfs: support printing UUID tree elements Date: Wed, 26 Jun 2013 17:16:36 +0200 Message-Id: <0688e321e9a09932deb12d6eeac61dd72fb1a1b0.1372250828.git.sbehrens@giantdisaster.de> X-Mailer: git-send-email 1.8.3 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=-8.2 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 | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index dc0024f..a8a1e4d 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -155,6 +155,26 @@ 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) { + u64 subvol_id; + + read_extent_buffer(l, &subvol_id, offset, sizeof(u64)); + subvol_id = le64_to_cpu(subvol_id); + printk(KERN_INFO "\t\tsubvol_id %llu\n", + (unsigned long long)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 +321,11 @@ 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; }; } }