| /* |
| * Copyright (C) 2007 Oracle. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #define _XOPEN_SOURCE 500 |
| #define _GNU_SOURCE 1 |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include "kerncompat.h" |
| #include "ctree.h" |
| #include "disk-io.h" |
| #include "print-tree.h" |
| #include "transaction.h" |
| #include "list.h" |
| #include "version.h" |
| #include "utils.h" |
| |
| static void print_usage(void) |
| { |
| fprintf(stderr, "usage: btrfs-zero-log dev\n"); |
| fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION); |
| exit(1); |
| } |
| |
| int main(int ac, char **av) |
| { |
| struct btrfs_root *root; |
| struct btrfs_trans_handle *trans; |
| int ret; |
| |
| if (ac != 2) |
| print_usage(); |
| |
| radix_tree_init(); |
| |
| if((ret = check_mounted(av[1])) < 0) { |
| fprintf(stderr, "Could not check mount status: %s\n", strerror(-ret)); |
| return ret; |
| } else if(ret) { |
| fprintf(stderr, "%s is currently mounted. Aborting.\n", av[1]); |
| return -EBUSY; |
| } |
| |
| root = open_ctree(av[1], 0, 1); |
| |
| if (root == NULL) |
| return 1; |
| |
| trans = btrfs_start_transaction(root, 1); |
| btrfs_set_super_log_root(&root->fs_info->super_copy, 0); |
| btrfs_set_super_log_root_level(&root->fs_info->super_copy, 0); |
| btrfs_commit_transaction(trans, root); |
| close_ctree(root); |
| return ret; |
| } |