]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - Kill.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * Email: <neilb@cse.unsw.edu.au>
24 * School of Computer Science and Engineering
25 * The University of New South Wales
29 * Added by Dale Stephenson
30 * steph@snapserver.com
37 int Kill(char *dev
, int force
, int quiet
, int noexcl
)
40 * Nothing fancy about Kill. It just zeroes out a superblock
41 * Definitely not safe.
49 fd
= open(dev
, O_RDWR
|(force
? 0 : O_EXCL
));
52 fprintf(stderr
, Name
": Couldn't open %s for write - not zeroing\n",
60 fprintf(stderr
, Name
": Unrecognised md component device - %s\n", dev
);
64 rv
= st
->ss
->load_super(st
, fd
, dev
);
66 rv
= 0; /* ignore bad data in superblock */
67 if (rv
== 0 || (force
&& rv
>= 2)) {
68 st
->ss
->free_super(st
);
69 st
->ss
->init_super(st
, NULL
, 0, "", NULL
, NULL
);
70 if (st
->ss
->store_super(st
, fd
)) {
72 fprintf(stderr
, Name
": Could not zero superblock on %s\n",
77 fprintf(stderr
, Name
": superblock zeroed anyway\n");