* The University of New South Wales
* Sydney, 2052
* Australia
+ *
+ * Additions for bitmap and async RAID options, Copyright (C) 2003-2004,
+ * Paul Clements, SteelEye Technology, Inc.
*/
#include "mdadm.h"
#include <ctype.h>
-void make_parts(char *dev, int cnt)
-{
- /* make 'cnt' partition devices for 'dev'
- * We use the major/minor from dev and add 1..cnt
- * If dev ends with a digit, we add "_p%d" else "%d"
- * If the name exists, we use it's owner/mode,
- * else that of dev
- */
- struct stat stb;
- int major, minor;
- int i;
- char *name = malloc(strlen(dev) + 20);
- int dig = isdigit(dev[strlen(dev)-1]);
-
- if (stat(dev, &stb)!= 0)
- return;
- if (!S_ISBLK(stb.st_mode))
- return;
- major = MAJOR(stb.st_rdev);
- minor = MINOR(stb.st_rdev);
- for (i=1; i <= cnt ; i++) {
- struct stat stb2;
- sprintf(name, "%s%s%d", dev, dig?"_p":"", i);
- if (stat(name, &stb2)==0) {
- if (!S_ISBLK(stb2.st_mode))
- continue;
- if (stb2.st_rdev == MKDEV(major, minor+i))
- continue;
- unlink(name);
- } else {
- stb2 = stb;
- }
- mknod(name, S_IFBLK | 0600, MKDEV(major, minor+i));
- chown(name, stb2.st_uid, stb2.st_gid);
- chmod(name, stb2.st_mode & 07777);
- }
-}
-
-/*
- * Open a given md device, and check that it really is one.
- * If 'autof' is given, then we need to create, or recreate, the md device.
- * If the name already exists, and is not a block device, we fail.
- * If it exists and is not an md device, is not the right type (partitioned or not),
- * or is currently in-use, we remove the device, but remember the owner and mode.
- * If it now doesn't exist, we find a few md array and create the device.
- * Default ownership is user=0, group=0 perm=0600
- */
-int open_mddev(char *dev, int autof)
-{
- int mdfd;
- struct stat stb;
- int major = MD_MAJOR;
- int minor;
- int must_remove = 0;
- struct mdstat_ent *mdlist;
- int num;
-
- if (autof) {
- /* autof is set, so we need to check that the name is ok,
- * and possibly create one if not
- */
- stb.st_mode = 0;
- if (lstat(dev, &stb)==0 && ! S_ISBLK(stb.st_mode)) {
- fprintf(stderr, Name ": %s is not a block device.\n",
- dev);
- return -1;
- }
- /* check major number is correct */
- if (autof>0)
- major = get_mdp_major();
- if (stb.st_mode && MAJOR(stb.st_rdev) != major)
- must_remove = 1;
- if (stb.st_mode && !must_remove) {
- mdu_array_info_t array;
- /* looks ok, see if it is available */
- mdfd = open(dev, O_RDWR, 0);
- if (mdfd < 0) {
- fprintf(stderr, Name ": error opening %s: %s\n",
- dev, strerror(errno));
- return -1;
- } else if (md_get_version(mdfd) <= 0) {
- fprintf(stderr, Name ": %s does not appear to be an md device\n",
- dev);
- close(mdfd);
- return -1;
- }
- if (ioctl(mdfd, GET_ARRAY_INFO, &array)==0) {
- /* already active */
- must_remove = 1;
- close(mdfd);
- } else {
- if (autof > 0)
- make_parts(dev, autof);
- return mdfd;
- }
- }
- /* Ok, need to find a minor that is not in use.
- * Easiest to read /proc/mdstat, and hunt through for
- * an unused number
- */
- mdlist = mdstat_read(0);
- for (num= (autof>0)?-1:0 ; ; num+= (autof>2)?-1:1) {
- struct mdstat_ent *me;
- for (me=mdlist; me; me=me->next)
- if (me->devnum == num)
- break;
- if (!me) {
- /* doesn't exist if mdstat.
- * make sure it is new to /dev too
- */
- char *dn;
- if (autof > 0)
- minor = (-1-num) << MdpMinorShift;
- else
- minor = num;
- dn = map_dev(major,minor);
- if (dn==NULL || is_standard(dn)) {
- /* this number only used by a 'standard' name,
- * so it is safe to use
- */
- break;
- }
- }
- }
- /* 'num' is the number to use, >=0 for md, <0 for mdp */
- if (must_remove) {
- /* never remove a device name that ends /mdNN or /dNN,
- * that would be confusing
- */
- if (is_standard(dev)) {
- fprintf(stderr, Name ": --auto refusing to remove %s as it looks like a standard name.\n",
- dev);
- return -1;
- }
- unlink(dev);
- }
-
- if (mknod(dev, S_IFBLK|0600, MKDEV(major, minor))!= 0) {
- fprintf(stderr, Name ": failed to create %s\n", dev);
- return -1;
- }
- if (must_remove) {
- chown(dev, stb.st_uid, stb.st_gid);
- chmod(dev, stb.st_mode & 07777);
- }
- make_parts(dev,autof);
- }
- mdfd = open(dev, O_RDWR, 0);
- if (mdfd < 0)
- fprintf(stderr, Name ": error opening %s: %s\n",
- dev, strerror(errno));
- else if (md_get_version(mdfd) <= 0) {
- fprintf(stderr, Name ": %s does not appear to be an md device\n",
- dev);
- close(mdfd);
- mdfd = -1;
- }
- return mdfd;
-}
-
-
-
int main(int argc, char *argv[])
{
int mode = 0;
char *help_text;
char *c;
int rv;
+ int i;
int chunk = 0;
int size = -1;
int level = UnSet;
int layout = UnSet;
int raiddisks = 0;
+ int max_disks = MD_SB_DISKS;
int sparedisks = 0;
struct mddev_ident_s ident;
char *configfile = NULL;
char devmode = 0;
int runstop = 0;
int readonly = 0;
+ int bitmap_fd = -1;
+ char *bitmap_file = NULL;
+ int bitmap_chunk = UnSet;
int SparcAdjust = 0;
mddev_dev_t devlist = NULL;
mddev_dev_t *devlistend = & devlist;
int force = 0;
int test = 0;
int assume_clean = 0;
- int autof = 0; /* -1 for non-partitions, 1 or more to create partitions */
+ int autof = 0; /* -2 means create device based on name:
+ * if it ends mdN, then non-partitioned array N
+ * if it ends dN, then partitions array N
+ * -1 means create non-partitioned, choose N
+ * 1 or more to create partitioned
+ * If -1 or 1 and name is a 'standard' name, then
+ * insist on a match of type and number.
+ */
char *mailaddr = NULL;
char *program = NULL;
int delay = 0;
int daemonise = 0;
+ char *pidfile = NULL;
int oneshot = 0;
+ struct supertype *ss = NULL;
+
+ int copies;
int mdfd = -1;
+ srandom(time(0) ^ getpid());
+
ident.uuid_set=0;
ident.level = UnSet;
ident.raid_disks = UnSet;
ident.super_minor= UnSet;
ident.devices=0;
+ ident.spare_group = NULL;
+ ident.autof = 0;
+ ident.st = NULL;
+ ident.bitmap_fd = -1;
while ((option_index = -1) ,
(opt=getopt_long(argc, argv,
case 'v': verbose = 1;
continue;
- case 'b': brief = 1;
+ case 'b':
+ if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW)
+ break; /* b means bitmap */
+ brief = 1;
continue;
case ':':
case 'a':
case 'r':
case 'f':
- case 1 : if (!mode) newmode = MANAGE; break;
+ if (!mode) newmode = MANAGE;
+ break;
case 'A': newmode = ASSEMBLE; break;
case 'B': newmode = BUILD; break;
case '#':
case 'D':
case 'E':
+ case 'X':
case 'Q': newmode = MISC; break;
case 'R':
case 'S':
fprintf(stderr, "--%s", long_options[option_index].name);
else
fprintf(stderr, "-%c", opt);
- fprintf(stderr, " would set mode to %s, but it is already %s.\n",
+ fprintf(stderr, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n",
map_num(modes, newmode),
map_num(modes, mode));
exit(2);
fputs(Help_config, stderr);
exit(0);
}
+
+ /* If first option is a device, don't force the mode yet */
+ if (opt == 1) {
+ if (devs_found == 0) {
+ dv = malloc(sizeof(*dv));
+ if (dv == NULL) {
+ fprintf(stderr, Name ": malloc failed\n");
+ exit(3);
+ }
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+ /* No mode yet, and this is the second device ... */
+ fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n");
+ exit(2);
+ }
if (option_index >= 0)
- fprintf(stderr, "--%s", long_options[option_index].name);
+ fprintf(stderr, Name ": --%s", long_options[option_index].name);
else
- fprintf(stderr, "-%c", opt);
- fprintf(stderr, " does not set the mode, and so cannot be first.\n");
+ fprintf(stderr, Name ": -%c", opt);
+ fprintf(stderr, " does not set the mode, and so cannot be the first option.\n");
exit(2);
}
fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg);
exit(2);
}
+ if (devs_found > 0 && mode == 'G' && !devmode) {
+ fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg);
+ exit(2);
+ }
dv = malloc(sizeof(*dv));
if (dv == NULL) {
fprintf(stderr, Name ": malloc failed\n");
}
continue;
+ case O(CREATE,'e'):
+ case O(ASSEMBLE,'e'):
+ case O(MISC,'e'): /* set metadata (superblock) information */
+ if (ss) {
+ fprintf(stderr, Name ": metadata information already given\n");
+ exit(2);
+ }
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc(optarg);
+
+ if (!ss) {
+ fprintf(stderr, Name ": unrecognised metadata identifier: %s\n", optarg);
+ exit(2);
+ }
+ max_disks = ss->max_devs;
+ continue;
+
case O(GROW,'z'):
case O(CREATE,'z'): /* size */
if (size >= 0) {
}
continue;
+ case O(GROW,'l'): /* hack - needed to understand layout */
case O(CREATE,'l'):
case O(BUILD,'l'): /* set raid level*/
if (level != UnSet) {
optarg);
exit(2);
}
- if (level != 0 && level != -1 && level != 1 && level != -4 && mode == BUILD) {
+ if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) {
fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
optarg);
exit(2);
continue;
case O(CREATE,'p'): /* raid5 layout */
- if (layout >= 0) {
+ case O(BUILD,'p'): /* faulty layout */
+ case O(GROW, 'p'): /* faulty reconfig */
+ if (layout != UnSet) {
fprintf(stderr,Name ": layout may only be sent once. "
"Second value was %s\n", optarg);
exit(2);
exit(2);
}
break;
+
+ case 10:
+ /* 'f' or 'n' followed by a number <= raid_disks */
+ if ((optarg[0] != 'n' && optarg[0] != 'f') ||
+ (copies = strtoul(optarg+1, &cp, 10)) < 1 ||
+ copies > 200 ||
+ *cp) {
+ fprintf(stderr, Name ": layout for raid10 must be 'nNN' or 'fNN' where NN is a number, not %s\n", optarg);
+ exit(2);
+ }
+ if (optarg[0] == 'n')
+ layout = 256 + copies;
+ else
+ layout = 1 + (copies<<8);
+ break;
+ case -5: /* Faulty
+ * modeNNN
+ */
+
+ {
+ int ln = strcspn(optarg, "0123456789");
+ char *m = strdup(optarg);
+ int mode;
+ m[ln] = 0;
+ mode = map_name(faultylayout, m);
+ if (mode == UnSet) {
+ fprintf(stderr, Name ": layout %s not understood for faulty.\n",
+ optarg);
+ exit(2);
+ }
+ layout = mode | (atoi(optarg+ln)<< ModeShift);
+ }
}
continue;
exit(2);
}
raiddisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || raiddisks<=0 || raiddisks > MD_SB_DISKS) {
+ if (!optarg[0] || *c || raiddisks<=0 || raiddisks > max_disks) {
fprintf(stderr, Name ": invalid number of raid devices: %s\n",
optarg);
exit(2);
}
- if (raiddisks == 1 && !force) {
+ if (raiddisks == 1 && !force && level != -5) {
fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n"
" a mistake. If you really mean it you will need to specify --force before\n"
" setting the number of drives.\n");
exit(2);
}
sparedisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || sparedisks < 0 || sparedisks > MD_SB_DISKS - raiddisks) {
+ if (!optarg[0] || *c || sparedisks < 0 || sparedisks > max_disks - raiddisks) {
fprintf(stderr, Name ": invalid number of spare-devices: %s\n",
optarg);
exit(2);
case O(BUILD,'a'):
case O(ASSEMBLE,'a'): /* auto-creation of device node */
if (optarg == NULL)
- autof = -1;
+ autof = -2;
else if (strcasecmp(optarg,"no")==0)
autof = 0;
- else if (strcasecmp(optarg,"yes")==0 || strcasecmp(optarg,"md")==0)
+ else if (strcasecmp(optarg,"yes")==0)
+ autof = -2;
+ else if (strcasecmp(optarg,"md")==0)
autof = -1;
else {
/* There might be digits, and maybe a hypen, at the end */
exit(2);
}
update = optarg;
- if (strcmp(update, "sparc2.2")==0) continue;
+ if (strcmp(update, "sparc2.2")==0)
+ continue;
if (strcmp(update, "super-minor") == 0)
continue;
if (strcmp(update, "summaries")==0)
continue;
- fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor' or 'summaries' supported\n",update);
+ if (strcmp(update, "resync")==0)
+ continue;
+ fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'resync' or 'summaries' supported\n",update);
exit(2);
case O(ASSEMBLE,'c'): /* config file */
continue;
case O(MONITOR,'d'): /* delay in seconds */
+ case O(GROW, 'd'):
+ case O(BUILD,'d'): /* delay for bitmap updates */
+ case O(CREATE,'d'):
if (delay)
fprintf(stderr, Name ": only specify delay once. %s ignored.\n",
optarg);
case O(MONITOR,'f'): /* daemonise */
daemonise = 1;
continue;
+ case O(MONITOR,'i'): /* pid */
+ if (pidfile)
+ fprintf(stderr, Name ": only specify one pid file. %s ignored.\n",
+ optarg);
+ else
+ pidfile = optarg;
+ continue;
case O(MONITOR,'1'): /* oneshot */
oneshot = 1;
continue;
/* now the general management options. Some are applicable
* to other modes. None have arguments.
*/
+ case O(GROW,'a'):
case O(MANAGE,'a'): /* add a drive */
devmode = 'a';
continue;
case O(MISC,'K'):
case O(MISC,'R'):
case O(MISC,'S'):
+ case O(MISC,'X'):
case O(MISC,'o'):
case O(MISC,'w'):
if (devmode && devmode != opt &&
}
SparcAdjust = 1;
continue;
+
+ case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
+ if (!optarg) {
+ fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n");
+ exit(2);
+ }
+ if (strcmp(optarg, "internal")==0) {
+ fprintf(stderr, Name ": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n");
+ continue;
+ }
+ bitmap_fd = open(optarg, O_RDWR);
+ if (!*optarg || bitmap_fd < 0) {
+ fprintf(stderr, Name ": cannot open bitmap file %s: %s\n", optarg, strerror(errno));
+ exit(2);
+ }
+ ident.bitmap_fd = bitmap_fd; /* for Assemble */
+ continue;
+
+ case O(GROW,'b'):
+ case O(BUILD,'b'):
+ case O(CREATE,'b'): /* here we create the bitmap */
+ bitmap_file = optarg;
+ continue;
+
+ case O(GROW,4):
+ case O(BUILD,4):
+ case O(CREATE,4): /* bitmap chunksize */
+ bitmap_chunk = strtol(optarg, &c, 10);
+ if (!optarg[0] || *c || bitmap_chunk < 0 ||
+ bitmap_chunk & (bitmap_chunk - 1)) {
+ fprintf(stderr, Name ": invalid bitmap chunksize: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* convert K to B, chunk of 0K means 512B */
+ bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512;
+ continue;
}
/* We have now processed all the valid options. Anything else is
* an error
}
+ if (!mode && devs_found) {
+ mode = MISC;
+ devmode = 'Q';
+ if (devlist->disposition == 0)
+ devlist->disposition = devmode;
+ }
if (!mode) {
fputs(Usage, stderr);
exit(2);
if ((int)ident.super_minor == -2) {
struct stat stb;
fstat(mdfd, &stb);
- ident.super_minor = MINOR(stb.st_rdev);
+ ident.super_minor = minor(stb.st_rdev);
}
}
+
rv = 0;
switch(mode) {
case MANAGE:
ident.super_minor == UnSet && !scan ) {
/* Only a device has been given, so get details from config file */
mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname);
- mdfd = open_mddev(devlist->devname, array_ident->autof);
- if (mdfd < 0)
+ if (array_ident == NULL) {
+ fprintf(stderr, Name ": %s not identified in config file.\n",
+ devlist->devname);
rv |= 1;
- else {
- if (array_ident == NULL) {
- fprintf(stderr, Name ": %s not identified in config file.\n",
- devlist->devname);
+ } else {
+ mdfd = open_mddev(devlist->devname, array_ident->autof);
+ if (mdfd < 0)
rv |= 1;
- }
- else
- rv |= Assemble(devlist->devname, mdfd, array_ident, configfile,
+ else {
+ rv |= Assemble(ss, devlist->devname, mdfd, array_ident, configfile,
NULL,
readonly, runstop, update, verbose, force);
+ close(mdfd);
+ }
}
} else if (!scan)
- rv = Assemble(devlist->devname, mdfd, &ident, configfile,
+ rv = Assemble(ss, devlist->devname, mdfd, &ident, configfile,
devlist->next,
readonly, runstop, update, verbose, force);
else if (devs_found>0) {
}
for (dv = devlist ; dv ; dv=dv->next) {
mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
- mdfd = open_mddev(dv->devname, array_ident->autof);
- if (mdfd < 0) {
- rv |= 1;
- continue;
- }
if (array_ident == NULL) {
fprintf(stderr, Name ": %s not identified in config file.\n",
dv->devname);
rv |= 1;
continue;
}
- rv |= Assemble(dv->devname, mdfd, array_ident, configfile,
+ mdfd = open_mddev(dv->devname, array_ident->autof);
+ if (mdfd < 0) {
+ rv |= 1;
+ continue;
+ }
+ rv |= Assemble(ss, dv->devname, mdfd, array_ident, configfile,
NULL,
readonly, runstop, update, verbose, force);
+ close(mdfd);
}
} else {
mddev_ident_t array_list = conf_get_ident(configfile, NULL);
}
if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
/* already assembled, skip */
- continue;
- rv |= Assemble(array_list->devname, mdfd,
- array_list, configfile,
- NULL,
- readonly, runstop, NULL, verbose, force);
+ ;
+ else
+ rv |= Assemble(ss, array_list->devname, mdfd,
+ array_list, configfile,
+ NULL,
+ readonly, runstop, NULL, verbose, force);
+ close(mdfd);
}
}
break;
case BUILD:
- rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next, assume_clean);
+ if (bitmap_chunk == UnSet) bitmap_chunk = DEFAULT_BITMAP_CHUNK;
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ if (bitmap_file) {
+ if (strcmp(bitmap_file, "internal")==0) {
+ fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n");
+ rv |= 1;
+ break;
+ }
+ bitmap_fd = open(bitmap_file, O_RDWR,0);
+ if (bitmap_fd < 0 && errno != ENOENT) {
+ perror(Name ": cannot create bitmap file");
+ rv |= 1;
+ break;
+ }
+ if (bitmap_fd < 0) {
+ bitmap_fd = CreateBitmap(bitmap_file, force, NULL,
+ bitmap_chunk, delay, size);
+ }
+ }
+ rv = Build(devlist->devname, mdfd, chunk, level, layout,
+ raiddisks, devlist->next, assume_clean,
+ bitmap_file, bitmap_chunk, delay);
break;
case CREATE:
- rv = Create(devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ if (ss == NULL) {
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc("default");
+ }
+ if (!ss) {
+ fprintf(stderr, Name ": internal error - no default metadata style\n");
+ exit(2);
+ }
+
+ rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
raiddisks, sparedisks,
- devs_found-1, devlist->next, runstop, verbose, force);
+ devs_found-1, devlist->next, runstop, verbose, force,
+ bitmap_file, bitmap_chunk, delay);
break;
case MISC:
fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile);
exit(1);
}
- rv = Examine(devlist, scan?!verbose:brief, scan, SparcAdjust);
+ rv = Examine(devlist, scan?!verbose:brief, scan, SparcAdjust, ss);
} else {
if (devlist == NULL) {
if ((devmode == 'S' ||devmode=='D') && scan) {
/* apply to all devices in /proc/mdstat */
struct mdstat_ent *ms = mdstat_read(0);
struct mdstat_ent *e;
+ if (devmode == 'S') {
+ /* reverse order so that arrays made of arrays are stopped properly */
+ struct mdstat_ent *sm = NULL;
+ while ((e=ms) != NULL) {
+ ms = e->next;
+ e->next = sm;
+ sm = e;
+ }
+ ms = sm;
+ }
for (e=ms ; e ; e=e->next) {
char *name = get_md_name(e->devnum);
rv |= Detail(name, !verbose, test);
else if (devmode=='S') {
mdfd = open_mddev(name, 0);
- if (mdfd >= 0)
+ if (mdfd >= 0) {
rv |= Manage_runstop(name, mdfd, -1);
+ close(mdfd);
+ }
}
put_md_name(name);
}
rv |= Kill(dv->devname, force); continue;
case 'Q':
rv |= Query(dv->devname); continue;
+ case 'X':
+ rv |= ExamineBitmap(dv->devname, brief, ss); continue;
}
mdfd = open_mddev(dv->devname, 0);
- if (mdfd>=0)
+ if (mdfd>=0) {
switch(dv->disposition) {
case 'R':
rv |= Manage_runstop(dv->devname, mdfd, 1); break;
case 'w':
rv |= Manage_ro(dv->devname, mdfd, -1); break;
}
+ close(mdfd);
+ }
}
}
break;
rv = 1;
break;
}
+ if (pidfile && !daemonise) {
+ fprintf(stderr, Name ": Cannot write a pid file when not in daemon mode\n");
+ rv = 1;
+ break;
+ }
rv= Monitor(devlist, mailaddr, program,
- delay?delay:60, daemonise, scan, oneshot, configfile, test);
+ delay?delay:60, daemonise, scan, oneshot, configfile, test, pidfile);
break;
case GROW:
if (devs_found > 1) {
- fprintf(stderr, Name ": Only one device may be given for --grow\n");
- rv = 1;
- break;
- }
- if (size >= 0 && raiddisks) {
- fprintf(stderr, Name ": can only grow size OR raiddisks, not both\n");
+
+ /* must be '-a'. */
+ if (size >= 0 || raiddisks) {
+ fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ for (dv=devlist->next; dv ; dv=dv->next) {
+ rv = Grow_Add_device(devlist->devname, mdfd, dv->devname);
+ if (rv)
+ break;
+ }
+ } else if ((size >= 0) + (raiddisks != 0) + (layout != UnSet) + (bitmap_file != NULL)> 1) {
+ fprintf(stderr, Name ": can change at most one of size, raiddisks, bitmap, and layout\n");
rv = 1;
break;
- }
- rv = Manage_resize(devlist->devname, mdfd, size, raiddisks);
+ } else if (layout != UnSet)
+ rv = Manage_reconfig(devlist->devname, mdfd, layout);
+ else if (size >= 0 || raiddisks)
+ rv = Manage_resize(devlist->devname, mdfd, size, raiddisks);
+ else if (bitmap_file) {
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file,
+ bitmap_chunk, delay);
+ } else
+ fprintf(stderr, Name ": no changes to --grow\n");
break;
}
exit(rv);
projects / thirdparty / mdadm.git / blobdiff