[thirdparty/mdadm.git] / Manage.c

/*
 * mdadm - manage Linux "md" devices aka RAID arrays.
 *
 * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
 *
 *
 *    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
 */

#include "mdadm.h"
#include "md_u.h"
#include "md_p.h"

#define REGISTER_DEV 		_IO (MD_MAJOR, 1)
#define START_MD     		_IO (MD_MAJOR, 2)
#define STOP_MD      		_IO (MD_MAJOR, 3)

int Manage_ro(char *devname, int fd, int readonly)
{
	/* switch to readonly or rw
	 *
	 * requires >= 0.90.0
	 * first check that array is runing
	 * use RESTART_ARRAY_RW or STOP_ARRAY_RO
	 *
	 */
	mdu_array_info_t array;
	
	if (md_get_version(fd) < 9000) {
		fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
		return 1;
	}
	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
		fprintf(stderr, Name ": %s does not appear to be active.\n",
			devname);
		return 1;
	}
	
	if (readonly>0) {
		if (ioctl(fd, STOP_ARRAY_RO, NULL)) {
			fprintf(stderr, Name ": failed to set readonly for %s: %s\n",
				devname, strerror(errno));
			return 1;
		}
	} else if (readonly < 0) {
		if (ioctl(fd, RESTART_ARRAY_RW, NULL)) {
			fprintf(stderr, Name ": failed to set writable for %s: %s\n",
				devname, strerror(errno));
			return 1;
		}
	}
	return 0;			
}

int Manage_runstop(char *devname, int fd, int runstop, int quiet)
{
	/* Run or stop the array. array must already be configured
	 * required >= 0.90.0
	 */
	mdu_param_t param; /* unused */

	if (runstop == -1 && md_get_version(fd) < 9000) {
		if (ioctl(fd, STOP_MD, 0)) {
			if (!quiet) fprintf(stderr, Name ": stopping device %s failed: %s\n",
					    devname, strerror(errno));
			return 1;
		}
	}
	
	if (md_get_version(fd) < 9000) {
		fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
		return 1;
	}
	/*
	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
		fprintf(stderr, Name ": %s does not appear to be active.\n",
			devname);
		return 1;
	}
	*/
	if (runstop>0) {
		if (ioctl(fd, RUN_ARRAY, &param)) {
			fprintf(stderr, Name ": failed to run array %s: %s\n",
				devname, strerror(errno));
			return 1;
		}
	} else if (runstop < 0){
		if (ioctl(fd, STOP_ARRAY, NULL)) {
			if (!quiet)
				fprintf(stderr, Name ": fail to stop array %s: %s\n",
					devname, strerror(errno));
			return 1;
		}
	}
	return 0;
}

int Manage_resize(char *devname, int fd, long long size, int raid_disks)
{
	mdu_array_info_t info;
	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
		fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
			devname, strerror(errno));
		return 1;
	}
	if (size >= 0)
		info.size = size;
	if (raid_disks > 0)
		info.raid_disks = raid_disks;
	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
		fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n",
			devname, strerror(errno));
		return 1;
	}
	return 0;
}

int Manage_reconfig(char *devname, int fd, int layout)
{
	mdu_array_info_t info;
	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
		fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
			devname, strerror(errno));
		return 1;
	}
	info.layout = layout;
	printf("layout set to %d\n", info.layout);
	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
		fprintf(stderr, Name ": Cannot set layout for %s: %s\n",
			devname, strerror(errno));
		return 1;
	}
	return 0;
}

int Manage_subdevs(char *devname, int fd,
		   mddev_dev_t devlist, int verbose)
{
	/* do something to each dev.
	 * devmode can be
	 *  'a' - add the device
	 *	   try HOT_ADD_DISK
	 *         If that fails EINVAL, try ADD_NEW_DISK
	 *  'r' - remove the device HOT_REMOVE_DISK
	 *  'f' - set the device faulty SET_DISK_FAULTY
	 */
	mdu_array_info_t array;
	mdu_disk_info_t disc;
	mddev_dev_t dv;
	struct stat stb;
	int j;
	int tfd;
	struct supertype *st;
	void *dsuper = NULL;
	void *osuper = NULL; /* original super */
	int duuid[4];
	int ouuid[4];

	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
		fprintf(stderr, Name ": cannot get array info for %s\n",
			devname);
		return 1;
	}
	for (dv = devlist ; dv; dv=dv->next) {
		if (stat(dv->devname, &stb)) {
			fprintf(stderr, Name ": cannot find %s: %s\n",
				dv->devname, strerror(errno));
			return 1;
		}
		if ((stb.st_mode & S_IFMT) != S_IFBLK) {
			fprintf(stderr, Name ": %s is not a block device.\n",
				dv->devname);
			return 1;
		}
		switch(dv->disposition){
		default:
			fprintf(stderr, Name ": internal error - devmode[%s]=%d\n",
				dv->devname, dv->disposition);
			return 1;
		case 'a':
			/* add the device - hot or cold */
			st = super_by_version(array.major_version,
					      array.minor_version);
			if (!st) {
				fprintf(stderr, Name ": unsupport array - version %d.%d\n",
					array.major_version, array.minor_version);
				return 1;
			}

			/* Make sure it isn't in use (in 2.6 or later) */
			tfd = open(dv->devname, O_RDONLY|O_EXCL);
			if (tfd < 0) {
				fprintf(stderr, Name ": Cannot open %s: %s\n",
					dv->devname, strerror(errno));
				return 1;
			}
			if (array.not_persistent==0)
				st->ss->load_super(st, tfd, &osuper, NULL);
			/* will use osuper later */
			close(tfd);

			if (array.major_version == 0 &&
			    md_get_version(fd)%100 < 2) {
				if (ioctl(fd, HOT_ADD_DISK,
					  (unsigned long)stb.st_rdev)==0) {
					if (verbose >= 0)
						fprintf(stderr, Name ": hot added %s\n",
							dv->devname);
					continue;
				}

				fprintf(stderr, Name ": hot add failed for %s: %s\n",
					dv->devname, strerror(errno));
				return 1;
			}

			if (array.not_persistent == 0) {

				/* need to find a sample superblock to copy, and
				 * a spare slot to use 
				 */
				for (j=0; j<st->max_devs; j++) {
					char *dev;
					int dfd;
					disc.number = j;
					if (ioctl(fd, GET_DISK_INFO, &disc))
						continue;
					if (disc.major==0 && disc.minor==0)
						continue;
					if ((disc.state & 4)==0) continue; /* sync */
					/* Looks like a good device to try */
					dev = map_dev(disc.major, disc.minor, 1);
					if (!dev) continue;
					dfd = dev_open(dev, O_RDONLY);
					if (dfd < 0) continue;
					if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
						close(dfd);
						continue;
					}
					close(dfd);
					break;
				}
				if (!dsuper) {
					fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
					return 1;
				}
				/* Possibly this device was recently part of the array
				 * and was temporarily removed, and is now being re-added.
				 * If so, we can simply re-add it.
				 */
				st->ss->uuid_from_super(duuid, dsuper);
			
				if (osuper) {
					st->ss->uuid_from_super(ouuid, osuper);
					if (memcmp(duuid, ouuid, sizeof(ouuid))==0) {
						/* look close enough for now.  Kernel
						 * will worry about where a bitmap
						 * based reconstruct is possible
						 */
						struct mdinfo mdi;
						st->ss->getinfo_super(&mdi, osuper);
						disc.major = major(stb.st_rdev);
						disc.minor = minor(stb.st_rdev);
						disc.number = mdi.disk.number;
						disc.raid_disk = mdi.disk.raid_disk;
						disc.state = mdi.disk.state;
						if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
							if (verbose >= 0)
								fprintf(stderr, Name ": re-added %s\n", dv->devname);
							continue;
						}
						/* fall back on normal-add */
					}
				}
			}
			for (j=0; j< st->max_devs; j++) {
				disc.number = j;
				if (ioctl(fd, GET_DISK_INFO, &disc))
					break;
				if (disc.major==0 && disc.minor==0)
					break;
				if (disc.state & 8) /* removed */
					break;
			}
			disc.major = major(stb.st_rdev);
			disc.minor = minor(stb.st_rdev);
			disc.number =j;
			disc.state = 0;
			if (array.not_persistent==0) {
				if (dv->writemostly)
					disc.state |= 1 << MD_DISK_WRITEMOSTLY;
				st->ss->add_to_super(dsuper, &disc);
				if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
					return 1;
			} else if (dv->re_add) {
				/*  this had better be raid1.
				 * As we are "--re-add"ing we must find a spare slot
				 * to fill.
				 */
				char *used = malloc(array.raid_disks);
				memset(used, 0, array.raid_disks);
				for (j=0; j< st->max_devs; j++) {
					mdu_disk_info_t disc2;
					disc2.number = j;
					if (ioctl(fd, GET_DISK_INFO, &disc2))
						continue;
					if (disc2.major==0 && disc2.minor==0)
						continue;
					if (disc2.state & 8) /* removed */
						continue;
					if (disc2.raid_disk < 0)
						continue;
					if (disc2.raid_disk > array.raid_disks)
						continue;
					used[disc2.raid_disk] = 1;
				}
				for (j=0 ; j<array.raid_disks; j++)
					if (!used[j]) {
						disc.raid_disk = j;
						disc.state |= (1<<MD_DISK_SYNC);
						break;
					}
			}
			if (ioctl(fd,ADD_NEW_DISK, &disc)) {
				fprintf(stderr, Name ": add new device failed for %s as %d: %s\n",
					dv->devname, j, strerror(errno));
				return 1;
			}
			if (verbose >= 0)
				fprintf(stderr, Name ": added %s\n", dv->devname);
			break;

		case 'r':
			/* hot remove */
			/* FIXME check that it is a current member */
			if (ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev)) {
				fprintf(stderr, Name ": hot remove failed for %s: %s\n",
					dv->devname, strerror(errno));
				return 1;
			}
			if (verbose >= 0)
				fprintf(stderr, Name ": hot removed %s\n", dv->devname);
			break;

		case 'f': /* set faulty */
			/* FIXME check current member */
			if (ioctl(fd, SET_DISK_FAULTY, (unsigned long) stb.st_rdev)) {
				fprintf(stderr, Name ": set device faulty failed for %s:  %s\n",
					dv->devname, strerror(errno));
				return 1;
			}
			if (verbose >= 0)
				fprintf(stderr, Name ": set %s faulty in %s\n",
					dv->devname, devname);
			break;
		}
	}
	return 0;
	
}
Commit	Line	Data
64c4757e	1	/*
9a9dab36	2	* mdadm - manage Linux "md" devices aka RAID arrays.
64c4757e	3	*
cd29a5c8	4	* Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
64c4757e NB	5	*
	6	*
	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.
	11	*
	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.
	16	*
	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
	20	*
	21	* Author: Neil Brown
	22	* Email: <neilb@cse.unsw.edu.au>
	23	* Paper: Neil Brown
	24	* School of Computer Science and Engineering
	25	* The University of New South Wales
	26	* Sydney, 2052
	27	* Australia
	28	*/
	29
9a9dab36	30	#include "mdadm.h"
682c7051 NB	31	#include "md_u.h"
682c7051 NB	32	#include "md_p.h"
64c4757e	33
82b27616 NB	34	#define REGISTER_DEV _IO (MD_MAJOR, 1)
	35	#define START_MD _IO (MD_MAJOR, 2)
	36	#define STOP_MD _IO (MD_MAJOR, 3)
	37
64c4757e NB	38	int Manage_ro(char *devname, int fd, int readonly)
64c4757e NB	39	{
682c7051 NB	40	/* switch to readonly or rw
	41	*
	42	* requires >= 0.90.0
	43	* first check that array is runing
	44	* use RESTART_ARRAY_RW or STOP_ARRAY_RO
	45	*
	46	*/
	47	mdu_array_info_t array;
	48
	49	if (md_get_version(fd) < 9000) {
	50	fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
	51	return 1;
	52	}
	53	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
	54	fprintf(stderr, Name ": %s does not appear to be active.\n",
	55	devname);
	56	return 1;
	57	}
	58
	59	if (readonly>0) {
	60	if (ioctl(fd, STOP_ARRAY_RO, NULL)) {
	61	fprintf(stderr, Name ": failed to set readonly for %s: %s\n",
	62	devname, strerror(errno));
	63	return 1;
	64	}
	65	} else if (readonly < 0) {
	66	if (ioctl(fd, RESTART_ARRAY_RW, NULL)) {
82b27616	67	fprintf(stderr, Name ": failed to set writable for %s: %s\n",
682c7051 NB	68	devname, strerror(errno));
	69	return 1;
	70	}
	71	}
	72	return 0;
64c4757e NB	73	}
64c4757e NB	74
91f068bf	75	int Manage_runstop(char *devname, int fd, int runstop, int quiet)
64c4757e	76	{
682c7051 NB	77	/* Run or stop the array. array must already be configured
	78	* required >= 0.90.0
	79	*/
682c7051	80	mdu_param_t param; /* unused */
82b27616 NB	81
	82	if (runstop == -1 && md_get_version(fd) < 9000) {
	83	if (ioctl(fd, STOP_MD, 0)) {
91f068bf NB	84	if (!quiet) fprintf(stderr, Name ": stopping device %s failed: %s\n",
91f068bf NB	85	devname, strerror(errno));
82b27616 NB	86	return 1;
	87	}
	88	}
682c7051 NB	89
	90	if (md_get_version(fd) < 9000) {
	91	fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
	92	return 1;
	93	}
82b27616	94	/*
682c7051 NB	95	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
	96	fprintf(stderr, Name ": %s does not appear to be active.\n",
	97	devname);
	98	return 1;
	99	}
82b27616	100	*/
682c7051 NB	101	if (runstop>0) {
	102	if (ioctl(fd, RUN_ARRAY, &param)) {
	103	fprintf(stderr, Name ": failed to run array %s: %s\n",
	104	devname, strerror(errno));
	105	return 1;
	106	}
	107	} else if (runstop < 0){
	108	if (ioctl(fd, STOP_ARRAY, NULL)) {
91f068bf NB	109	if (!quiet)
	110	fprintf(stderr, Name ": fail to stop array %s: %s\n",
	111	devname, strerror(errno));
682c7051 NB	112	return 1;
	113	}
	114	}
	115	return 0;
64c4757e NB	116	}
64c4757e NB	117
dd0781e5 NB	118	int Manage_resize(char *devname, int fd, long long size, int raid_disks)
	119	{
	120	mdu_array_info_t info;
	121	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
	122	fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
	123	devname, strerror(errno));
	124	return 1;
	125	}
	126	if (size >= 0)
	127	info.size = size;
	128	if (raid_disks > 0)
	129	info.raid_disks = raid_disks;
	130	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
	131	fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n",
	132	devname, strerror(errno));
	133	return 1;
	134	}
	135	return 0;
	136	}
	137
b5e64645 NB	138	int Manage_reconfig(char *devname, int fd, int layout)
	139	{
	140	mdu_array_info_t info;
	141	if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
	142	fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
	143	devname, strerror(errno));
	144	return 1;
	145	}
	146	info.layout = layout;
	147	printf("layout set to %d\n", info.layout);
	148	if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
	149	fprintf(stderr, Name ": Cannot set layout for %s: %s\n",
	150	devname, strerror(errno));
	151	return 1;
	152	}
	153	return 0;
	154	}
dd0781e5	155
64c4757e	156	int Manage_subdevs(char *devname, int fd,
dab6685f	157	mddev_dev_t devlist, int verbose)
cd29a5c8	158	{
682c7051 NB	159	/* do something to each dev.
	160	* devmode can be
	161	* 'a' - add the device
	162	* try HOT_ADD_DISK
	163	* If that fails EINVAL, try ADD_NEW_DISK
	164	* 'r' - remove the device HOT_REMOVE_DISK
	165	* 'f' - set the device faulty SET_DISK_FAULTY
	166	*/
	167	mdu_array_info_t array;
	168	mdu_disk_info_t disc;
cd29a5c8	169	mddev_dev_t dv;
682c7051	170	struct stat stb;
c913b90e	171	int j;
0fbf459d	172	int tfd;
892debc8 NB	173	struct supertype *st;
892debc8 NB	174	void *dsuper = NULL;
fe80f49b NB	175	void osuper = NULL; / original super */
	176	int duuid[4];
	177	int ouuid[4];
682c7051 NB	178
	179	if (ioctl(fd, GET_ARRAY_INFO, &array)) {
	180	fprintf(stderr, Name ": cannot get array info for %s\n",
	181	devname);
	182	return 1;
	183	}
cd29a5c8 NB	184	for (dv = devlist ; dv; dv=dv->next) {
cd29a5c8 NB	185	if (stat(dv->devname, &stb)) {
682c7051	186	fprintf(stderr, Name ": cannot find %s: %s\n",
cd29a5c8	187	dv->devname, strerror(errno));
682c7051 NB	188	return 1;
	189	}
	190	if ((stb.st_mode & S_IFMT) != S_IFBLK) {
	191	fprintf(stderr, Name ": %s is not a block device.\n",
cd29a5c8	192	dv->devname);
682c7051 NB	193	return 1;
682c7051 NB	194	}
cd29a5c8	195	switch(dv->disposition){
682c7051	196	default:
c913b90e NB	197	fprintf(stderr, Name ": internal error - devmode[%s]=%d\n",
c913b90e NB	198	dv->devname, dv->disposition);
682c7051 NB	199	return 1;
	200	case 'a':
	201	/* add the device - hot or cold */
fe80f49b NB	202	st = super_by_version(array.major_version,
	203	array.minor_version);
	204	if (!st) {
	205	fprintf(stderr, Name ": unsupport array - version %d.%d\n",
	206	array.major_version, array.minor_version);
	207	return 1;
	208	}
	209
f277ce36	210	/* Make sure it isn't in use (in 2.6 or later) */
0fbf459d NB	211	tfd = open(dv->devname, O_RDONLY\|O_EXCL);
0fbf459d NB	212	if (tfd < 0) {
d7eaf49f NB	213	fprintf(stderr, Name ": Cannot open %s: %s\n",
	214	dv->devname, strerror(errno));
	215	return 1;
	216	}
fe80f49b NB	217	if (array.not_persistent==0)
	218	st->ss->load_super(st, tfd, &osuper, NULL);
	219	/* will use osuper later */
0fbf459d	220	close(tfd);
fe80f49b	221
60d9a174 NB	222	if (array.major_version == 0 &&
60d9a174 NB	223	md_get_version(fd)%100 < 2) {
892debc8 NB	224	if (ioctl(fd, HOT_ADD_DISK,
892debc8 NB	225	(unsigned long)stb.st_rdev)==0) {
dab6685f NB	226	if (verbose >= 0)
	227	fprintf(stderr, Name ": hot added %s\n",
	228	dv->devname);
892debc8 NB	229	continue;
	230	}
	231
cd29a5c8	232	fprintf(stderr, Name ": hot add failed for %s: %s\n",
892debc8	233	dv->devname, strerror(errno));
cd29a5c8 NB	234	return 1;
cd29a5c8 NB	235	}
892debc8	236
fe80f49b NB	237	if (array.not_persistent == 0) {
	238
	239	/* need to find a sample superblock to copy, and
	240	* a spare slot to use
	241	*/
	242	for (j=0; j<st->max_devs; j++) {
	243	char *dev;
	244	int dfd;
	245	disc.number = j;
	246	if (ioctl(fd, GET_DISK_INFO, &disc))
	247	continue;
	248	if (disc.major==0 && disc.minor==0)
	249	continue;
	250	if ((disc.state & 4)==0) continue; /* sync */
	251	/* Looks like a good device to try */
16c6fa80	252	dev = map_dev(disc.major, disc.minor, 1);
fe80f49b	253	if (!dev) continue;
16c6fa80	254	dfd = dev_open(dev, O_RDONLY);
fe80f49b NB	255	if (dfd < 0) continue;
	256	if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
	257	close(dfd);
	258	continue;
	259	}
892debc8	260	close(dfd);
fe80f49b NB	261	break;
	262	}
	263	if (!dsuper) {
	264	fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
	265	return 1;
	266	}
	267	/* Possibly this device was recently part of the array
	268	* and was temporarily removed, and is now being re-added.
	269	* If so, we can simply re-add it.
	270	*/
	271	st->ss->uuid_from_super(duuid, dsuper);
	272
	273	if (osuper) {
	274	st->ss->uuid_from_super(ouuid, osuper);
	275	if (memcmp(duuid, ouuid, sizeof(ouuid))==0) {
	276	/* look close enough for now. Kernel
	277	* will worry about where a bitmap
	278	* based reconstruct is possible
	279	*/
	280	struct mdinfo mdi;
31317663	281	st->ss->getinfo_super(&mdi, osuper);
fe80f49b NB	282	disc.major = major(stb.st_rdev);
	283	disc.minor = minor(stb.st_rdev);
	284	disc.number = mdi.disk.number;
	285	disc.raid_disk = mdi.disk.raid_disk;
	286	disc.state = mdi.disk.state;
	287	if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
	288	if (verbose >= 0)
	289	fprintf(stderr, Name ": re-added %s\n", dv->devname);
308e1801	290	continue;
fe80f49b NB	291	}
	292	/* fall back on normal-add */
	293	}
892debc8	294	}
892debc8	295	}
f277ce36	296	for (j=0; j< st->max_devs; j++) {
aa88f531	297	disc.number = j;
682c7051 NB	298	if (ioctl(fd, GET_DISK_INFO, &disc))
	299	break;
	300	if (disc.major==0 && disc.minor==0)
	301	break;
	302	if (disc.state & 8) /* removed */
	303	break;
	304	}
0df46c2a NB	305	disc.major = major(stb.st_rdev);
0df46c2a NB	306	disc.minor = minor(stb.st_rdev);
892debc8 NB	307	disc.number =j;
892debc8 NB	308	disc.state = 0;
fe80f49b NB	309	if (array.not_persistent==0) {
	310	if (dv->writemostly)
	311	disc.state \|= 1 << MD_DISK_WRITEMOSTLY;
	312	st->ss->add_to_super(dsuper, &disc);
1bf4e2d9	313	if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
fe80f49b NB	314	return 1;
	315	} else if (dv->re_add) {
	316	/* this had better be raid1.
	317	* As we are "--re-add"ing we must find a spare slot
	318	* to fill.
	319	*/
	320	char *used = malloc(array.raid_disks);
	321	memset(used, 0, array.raid_disks);
	322	for (j=0; j< st->max_devs; j++) {
	323	mdu_disk_info_t disc2;
	324	disc2.number = j;
	325	if (ioctl(fd, GET_DISK_INFO, &disc2))
	326	continue;
	327	if (disc2.major==0 && disc2.minor==0)
	328	continue;
	329	if (disc2.state & 8) /* removed */
	330	continue;
	331	if (disc2.raid_disk < 0)
	332	continue;
	333	if (disc2.raid_disk > array.raid_disks)
	334	continue;
	335	used[disc2.raid_disk] = 1;
	336	}
	337	for (j=0 ; j<array.raid_disks; j++)
	338	if (!used[j]) {
	339	disc.raid_disk = j;
	340	disc.state \|= (1<<MD_DISK_SYNC);
	341	break;
	342	}
	343	}
682c7051	344	if (ioctl(fd,ADD_NEW_DISK, &disc)) {
f277ce36 NB	345	fprintf(stderr, Name ": add new device failed for %s as %d: %s\n",
f277ce36 NB	346	dv->devname, j, strerror(errno));
682c7051 NB	347	return 1;
682c7051 NB	348	}
dab6685f NB	349	if (verbose >= 0)
dab6685f NB	350	fprintf(stderr, Name ": added %s\n", dv->devname);
682c7051 NB	351	break;
	352
	353	case 'r':
	354	/* hot remove */
82b27616	355	/* FIXME check that it is a current member */
cd29a5c8	356	if (ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev)) {
682c7051	357	fprintf(stderr, Name ": hot remove failed for %s: %s\n",
cd29a5c8	358	dv->devname, strerror(errno));
682c7051 NB	359	return 1;
682c7051 NB	360	}
dab6685f NB	361	if (verbose >= 0)
dab6685f NB	362	fprintf(stderr, Name ": hot removed %s\n", dv->devname);
682c7051 NB	363	break;
	364
	365	case 'f': /* set faulty */
	366	/* FIXME check current member */
cd29a5c8	367	if (ioctl(fd, SET_DISK_FAULTY, (unsigned long) stb.st_rdev)) {
b83d95f3	368	fprintf(stderr, Name ": set device faulty failed for %s: %s\n",
cd29a5c8	369	dv->devname, strerror(errno));
682c7051 NB	370	return 1;
682c7051 NB	371	}
dab6685f NB	372	if (verbose >= 0)
	373	fprintf(stderr, Name ": set %s faulty in %s\n",
	374	dv->devname, devname);
682c7051 NB	375	break;
	376	}
	377	}
	378	return 0;
	379
64c4757e	380	}