| /* |
| * mdadm - manage Linux "md" devices aka RAID arrays. |
| * |
| * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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 02111-1307 USA |
| * |
| * Author: Neil Brown |
| * Email: <neilb@cse.unsw.edu.au> |
| * Paper: Neil Brown |
| * School of Computer Science and Engineering |
| * The University of New South Wales |
| * Sydney, 2052 |
| * Australia |
| * |
| * Added by Dale Stephenson |
| * steph@snapserver.com |
| */ |
| |
| #include "mdadm.h" |
| #include "md_u.h" |
| #include "md_p.h" |
| |
| int Kill(char *dev, int force, int quiet) |
| { |
| /* |
| * Nothing fancy about Kill. It just zeroes out a superblock |
| * Definitely not safe. |
| */ |
| |
| int fd, rv = 0; |
| struct supertype *st; |
| |
| fd = open(dev, O_RDWR|(force ? 0 : O_EXCL)); |
| if (fd < 0) { |
| if (!quiet) |
| fprintf(stderr, Name ": Couldn't open %s for write - not zeroing\n", |
| dev); |
| close(fd); |
| return 1; |
| } |
| st = guess_super(fd); |
| if (st == NULL) { |
| if (!quiet) |
| fprintf(stderr, Name ": Unrecognised md component device - %s\n", dev); |
| close(fd); |
| return 1; |
| } |
| rv = st->ss->load_super(st, fd, dev); |
| if (force && rv >= 2) |
| rv = 0; /* ignore bad data in superblock */ |
| if (rv== 0 || (force && rv >= 2)) { |
| mdu_array_info_t info; |
| info.major_version = -1; /* zero superblock */ |
| st->ss->free_super(st); |
| st->ss->init_super(st, &info, 0, "", NULL, NULL, 0); |
| if (st->ss->store_super(st, fd)) { |
| if (!quiet) |
| fprintf(stderr, Name ": Could not zero superblock on %s\n", |
| dev); |
| rv = 1; |
| } else if (rv) { |
| if (!quiet) |
| fprintf(stderr, Name ": superblock zeroed anyway\n"); |
| rv = 0; |
| } |
| } |
| close(fd); |
| return rv; |
| } |