/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
#include "md_p.h"
#include <ctype.h>
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident);
+static int misc_scan(char devmode, struct context *c);
+static int stop_scan(int verbose);
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ char *dump_directory,
+ struct supertype *ss, struct context *c);
+const char Name[] = "mdadm";
int main(int argc, char *argv[])
{
int mode = 0;
int opt;
int option_index;
- char *c;
int rv;
int i;
- int chunk = 0;
- long long size = -1;
- long long array_size = -1;
- int level = UnSet;
- int layout = UnSet;
- char *layout_str = NULL;
- int raiddisks = 0;
- int sparedisks = 0;
+ unsigned long long array_size = 0;
+ unsigned long long data_offset = INVALID_SECTORS;
struct mddev_ident ident;
char *configfile = NULL;
- char *cp;
- char *update = NULL;
- int scan = 0;
int devmode = 0;
- int runstop = 0;
- int readonly = 0;
- int write_behind = 0;
int bitmap_fd = -1;
- char *bitmap_file = NULL;
- char *backup_file = NULL;
- int invalid_backup = 0;
- int bitmap_chunk = UnSet;
- int SparcAdjust = 0;
struct mddev_dev *devlist = NULL;
struct mddev_dev **devlistend = & devlist;
struct mddev_dev *dv;
int devs_found = 0;
- int verbose = 0;
- int quiet = 0;
- int brief = 0;
- int force = 0;
- int test = 0;
- int export = 0;
- int assume_clean = 0;
char *symlinks = NULL;
+ int grow_continue = 0;
/* autof indicates whether and how to create device node.
* bottom 3 bits are style. Rest (when shifted) are number of parts
* 0 - unset
* 5 - default to md if not is_standard (md in config file)
* 6 - default to mdp if not is_standard (part, or mdp in config file)
*/
- int autof = 0;
+ struct context c = {
+ .require_homehost = 1,
+ };
+ struct shape s = {
+ .level = UnSet,
+ .layout = UnSet,
+ .bitmap_chunk = UnSet,
+ };
- char *homehost = NULL;
char sys_hostname[256];
- int require_homehost = 1;
char *mailaddr = NULL;
char *program = NULL;
int increments = 20;
- int delay = 0;
int daemonise = 0;
char *pidfile = NULL;
int oneshot = 0;
int spare_sharing = 1;
struct supertype *ss = NULL;
int writemostly = 0;
- int re_add = 0;
char *shortopt = short_options;
int dosyslog = 0;
int rebuild_map = 0;
- int auto_update_home = 0;
- char *subarray = NULL;
char *remove_path = NULL;
+ char *udev_filename = NULL;
+ char *dump_directory = NULL;
int print_help = 0;
FILE *outf;
fputs(Version, stderr);
exit(0);
- case 'v': verbose++;
+ case 'v': c.verbose++;
continue;
- case 'q': quiet++;
+ case 'q': c.verbose--;
continue;
case 'b':
|| mode == MANAGE)
break; /* b means bitmap */
case Brief:
- brief = 1;
+ c.brief = 1;
continue;
- case 'Y': export++;
+ case 'Y': c.export++;
continue;
case HomeHost:
if (strcasecmp(optarg, "<ignore>") == 0)
- require_homehost = 0;
+ c.require_homehost = 0;
else
- homehost = optarg;
+ c.homehost = optarg;
+ continue;
+
+ case OffRootOpt:
+ /* Silently ignore old option */
+ continue;
+
+ case Prefer:
+ if (c.prefer)
+ free(c.prefer);
+ if (asprintf(&c.prefer, "/%s/", optarg) <= 0)
+ c.prefer = NULL;
continue;
case ':':
break;
case 'a':
case Add:
+ case AddSpare:
case 'r':
case Remove:
+ case Replace:
+ case With:
case 'f':
case Fail:
case ReAdd: /* re-add */
}
break;
- case 'A': newmode = ASSEMBLE; shortopt = short_bitmap_auto_options; break;
- case 'B': newmode = BUILD; shortopt = short_bitmap_auto_options; break;
- case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break;
- case 'F': newmode = MONITOR;break;
+ case 'A': newmode = ASSEMBLE;
+ shortopt = short_bitmap_auto_options;
+ break;
+ case 'B': newmode = BUILD;
+ shortopt = short_bitmap_auto_options;
+ break;
+ case 'C': newmode = CREATE;
+ shortopt = short_bitmap_auto_options;
+ break;
+ case 'F': newmode = MONITOR;
+ break;
case 'G': newmode = GROW;
shortopt = short_bitmap_options;
break;
case 'I': newmode = INCREMENTAL;
- shortopt = short_bitmap_auto_options; break;
+ shortopt = short_bitmap_auto_options;
+ break;
case AutoDetect:
- newmode = AUTODETECT; break;
+ newmode = AUTODETECT;
+ break;
case MiscOpt:
case 'D':
case 'E':
case 'X':
- case 'Q': newmode = MISC; break;
+ case 'Q':
+ case ExamineBB:
+ case Dump:
+ case Restore:
+ case Action:
+ newmode = MISC;
+ break;
+
case 'R':
case 'S':
case 'o':
case DetailPlatform:
case KillSubarray:
case UpdateSubarray:
- if (opt == KillSubarray || opt == UpdateSubarray) {
- if (subarray) {
- fprintf(stderr, Name ": subarray can only"
- " be specified once\n");
- exit(2);
- }
- subarray = optarg;
- }
- case 'K': if (!mode) newmode = MISC; break;
- case NoSharing: newmode = MONITOR; break;
+ case UdevRules:
+ case KillOpt:
+ if (!mode)
+ newmode = MISC;
+ break;
+
+ case NoSharing:
+ newmode = MONITOR;
+ break;
}
if (mode && newmode == mode) {
/* everybody happy ! */
} else if (mode && newmode != mode) {
/* not allowed.. */
- fprintf(stderr, Name ": ");
+ pr_err("");
if (option_index >= 0)
fprintf(stderr, "--%s", long_options[option_index].name);
else
exit(2);
} else if (!mode && newmode) {
mode = newmode;
+ if (mode == MISC && devs_found) {
+ pr_err("No action given for %s in --misc mode\n",
+ devlist->devname);
+ cont_err("Action options must come before device names\n");
+ exit(2);
+ }
} else {
/* special case of -c --help */
if ((opt == 'c' || opt == ConfigFile) &&
/* 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 = xmalloc(sizeof(*dv));
dv->devname = optarg;
dv->disposition = devmode;
dv->writemostly = writemostly;
- dv->re_add = re_add;
dv->used = 0;
dv->next = NULL;
*devlistend = dv;
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\n"
+ pr_err("An option must be given to set the mode before a second device\n"
" (%s) is listed\n", optarg);
exit(2);
}
if (option_index >= 0)
- fprintf(stderr, Name ": --%s", long_options[option_index].name);
+ pr_err("--%s", long_options[option_index].name);
else
- fprintf(stderr, Name ": -%c", opt);
+ pr_err("-%c", opt);
fprintf(stderr, " does not set the mode, and so cannot be the first option.\n");
exit(2);
}
continue;
}
if (opt == 1) {
- /* an undecorated option - must be a device name.
+ /* an undecorated option - must be a device name.
*/
+
+ if (devs_found > 0 && devmode == DetailPlatform) {
+ pr_err("controller may only be specified once. %s ignored\n",
+ optarg);
+ continue;
+ }
+
if (devs_found > 0 && mode == MANAGE && !devmode) {
- fprintf(stderr, Name ": Must give one of -a/-r/-f"
- " for subsequent devices at %s\n", optarg);
+ pr_err("Must give one of -a/-r/-f for subsequent devices at %s\n", optarg);
exit(2);
}
if (devs_found > 0 && mode == GROW && !devmode) {
- fprintf(stderr, Name ": Must give -a/--add for"
- " devices to add: %s\n", optarg);
+ pr_err("Must give -a/--add for devices to add: %s\n", optarg);
exit(2);
}
- dv = malloc(sizeof(*dv));
- if (dv == NULL) {
- fprintf(stderr, Name ": malloc failed\n");
- exit(3);
- }
+ dv = xmalloc(sizeof(*dv));
dv->devname = optarg;
dv->disposition = devmode;
dv->writemostly = writemostly;
- dv->re_add = re_add;
dv->used = 0;
dv->next = NULL;
*devlistend = dv;
case O(CREATE,ChunkSize):
case O(BUILD,'c'): /* chunk or rounding */
case O(BUILD,ChunkSize): /* chunk or rounding */
- if (chunk) {
- fprintf(stderr, Name ": chunk/rounding may only be specified once. "
- "Second value is %s.\n", optarg);
+ if (s.chunk) {
+ pr_err("chunk/rounding may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
- chunk = parse_size(optarg);
- if (chunk < 8 || ((chunk-1)&chunk)) {
- fprintf(stderr, Name ": invalid chunk/rounding value: %s\n",
+ s.chunk = parse_size(optarg);
+ if (s.chunk == INVALID_SECTORS ||
+ s.chunk < 8 || (s.chunk&1)) {
+ pr_err("invalid chunk/rounding value: %s\n",
optarg);
exit(2);
}
- /* Covert sectors to K */
- chunk /= 2;
+ /* Convert sectors to K */
+ s.chunk /= 2;
continue;
-#if 0
- case O(ASSEMBLE,AutoHomeHost):
- auto_update_home = 1;
- continue;
-#endif
case O(INCREMENTAL, 'e'):
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");
+ pr_err("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);
+ pr_err("unrecognised metadata identifier: %s\n", optarg);
exit(2);
}
continue;
writemostly = 2;
continue;
-
case O(GROW,'z'):
case O(CREATE,'z'):
case O(BUILD,'z'): /* size */
- if (size >= 0) {
- fprintf(stderr, Name ": size may only be specified once. "
- "Second value is %s.\n", optarg);
+ if (s.size > 0) {
+ pr_err("size may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
if (strcmp(optarg, "max")==0)
- size = 0;
+ s.size = MAX_SIZE;
else {
- size = parse_size(optarg);
- if (size < 8) {
- fprintf(stderr, Name ": invalid size: %s\n",
+ s.size = parse_size(optarg);
+ if (s.size == INVALID_SECTORS ||
+ s.size < 8) {
+ pr_err("invalid size: %s\n",
optarg);
exit(2);
}
/* convert sectors to K */
- size /= 2;
+ s.size /= 2;
}
continue;
case O(GROW,'Z'): /* array size */
- if (array_size >= 0) {
- fprintf(stderr, Name ": array-size may only be specified once. "
- "Second value is %s.\n", optarg);
+ if (array_size > 0) {
+ pr_err("array-size may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
if (strcmp(optarg, "max") == 0)
- array_size = 0;
+ array_size = MAX_SIZE;
else {
array_size = parse_size(optarg);
- if (array_size <= 0) {
- fprintf(stderr, Name ": invalid array size: %s\n",
+ if (array_size == 0 ||
+ array_size == INVALID_SECTORS) {
+ pr_err("invalid array size: %s\n",
optarg);
exit(2);
}
}
continue;
+ case O(CREATE,DataOffset):
+ case O(GROW,DataOffset):
+ if (data_offset != INVALID_SECTORS) {
+ pr_err("data-offset may only be specified one. Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (mode == CREATE &&
+ strcmp(optarg, "variable") == 0)
+ data_offset = VARIABLE_OFFSET;
+ else
+ data_offset = parse_size(optarg);
+ if (data_offset == INVALID_SECTORS) {
+ pr_err("invalid data-offset: %s\n",
+ optarg);
+ exit(2);
+ }
+ continue;
+
case O(GROW,'l'):
case O(CREATE,'l'):
case O(BUILD,'l'): /* set raid level*/
- if (level != UnSet) {
- fprintf(stderr, Name ": raid level may only be set once. "
- "Second value is %s.\n", optarg);
+ if (s.level != UnSet) {
+ pr_err("raid level may only be set once. Second value is %s.\n", optarg);
exit(2);
}
- level = map_name(pers, optarg);
- if (level == UnSet) {
- fprintf(stderr, Name ": invalid raid level: %s\n",
+ s.level = map_name(pers, optarg);
+ if (s.level == UnSet) {
+ pr_err("invalid raid level: %s\n",
optarg);
exit(2);
}
- if (level != 0 && level != LEVEL_LINEAR && level != 1 &&
- level != LEVEL_MULTIPATH && level != LEVEL_FAULTY &&
- level != 10 &&
+ if (s.level != 0 && s.level != LEVEL_LINEAR && s.level != 1 &&
+ s.level != LEVEL_MULTIPATH && s.level != LEVEL_FAULTY &&
+ s.level != 10 &&
mode == BUILD) {
- fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
+ pr_err("Raid level %s not permitted with --build.\n",
optarg);
exit(2);
}
- if (sparedisks > 0 && level < 1 && level >= -1) {
- fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n",
+ if (s.sparedisks > 0 && s.level < 1 && s.level >= -1) {
+ pr_err("raid level %s is incompatible with spare-devices setting.\n",
optarg);
exit(2);
}
- ident.level = level;
+ ident.level = s.level;
continue;
case O(GROW, 'p'): /* new layout */
case O(GROW, Layout):
- if (layout_str) {
- fprintf(stderr,Name ": layout may only be sent once. "
- "Second value was %s\n", optarg);
+ if (s.layout_str) {
+ pr_err("layout may only be sent once. Second value was %s\n", optarg);
exit(2);
}
- layout_str = optarg;
+ s.layout_str = optarg;
/* 'Grow' will parse the value */
continue;
case O(CREATE,Layout):
case O(BUILD,'p'): /* faulty layout */
case O(BUILD,Layout):
- if (layout != UnSet) {
- fprintf(stderr,Name ": layout may only be sent once. "
- "Second value was %s\n", optarg);
+ if (s.layout != UnSet) {
+ pr_err("layout may only be sent once. Second value was %s\n", optarg);
exit(2);
}
- switch(level) {
+ switch(s.level) {
default:
- fprintf(stderr, Name ": layout not meaningful for %s arrays.\n",
- map_num(pers, level));
+ pr_err("layout not meaningful for %s arrays.\n",
+ map_num(pers, s.level));
exit(2);
case UnSet:
- fprintf(stderr, Name ": raid level must be given before layout.\n");
+ pr_err("raid level must be given before layout.\n");
exit(2);
case 5:
- layout = map_name(r5layout, optarg);
- if (layout==UnSet) {
- fprintf(stderr, Name ": layout %s not understood for raid5.\n",
+ s.layout = map_name(r5layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid5.\n",
optarg);
exit(2);
}
break;
case 6:
- layout = map_name(r6layout, optarg);
- if (layout==UnSet) {
- fprintf(stderr, Name ": layout %s not understood for raid6.\n",
+ s.layout = map_name(r6layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid6.\n",
optarg);
exit(2);
}
break;
case 10:
- layout = parse_layout_10(optarg);
- if (layout < 0) {
- fprintf(stderr, Name ": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
+ s.layout = parse_layout_10(optarg);
+ if (s.layout < 0) {
+ pr_err("layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
exit(2);
}
break;
/* Faulty
* modeNNN
*/
- layout = parse_layout_faulty(optarg);
- if (layout == -1) {
- fprintf(stderr, Name ": layout %s not understood for faulty.\n",
+ s.layout = parse_layout_faulty(optarg);
+ if (s.layout == -1) {
+ pr_err("layout %s not understood for faulty.\n",
optarg);
exit(2);
}
case O(CREATE,AssumeClean):
case O(BUILD,AssumeClean): /* assume clean */
- assume_clean = 1;
+ case O(GROW,AssumeClean):
+ s.assume_clean = 1;
continue;
case O(GROW,'n'):
case O(CREATE,'n'):
case O(BUILD,'n'): /* number of raid disks */
- if (raiddisks) {
- fprintf(stderr, Name ": raid-devices set twice: %d and %s\n",
- raiddisks, optarg);
+ if (s.raiddisks) {
+ pr_err("raid-devices set twice: %d and %s\n",
+ s.raiddisks, optarg);
exit(2);
}
- raiddisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || raiddisks<=0) {
- fprintf(stderr, Name ": invalid number of raid devices: %s\n",
+ s.raiddisks = parse_num(optarg);
+ if (s.raiddisks <= 0) {
+ pr_err("invalid number of raid devices: %s\n",
optarg);
exit(2);
}
- ident.raid_disks = raiddisks;
+ ident.raid_disks = s.raiddisks;
continue;
- case O(CREATE,'x'): /* number of spare (eXtra) discs */
- if (sparedisks) {
- fprintf(stderr,Name ": spare-devices set twice: %d and %s\n",
- sparedisks, optarg);
+ case O(CREATE,'x'): /* number of spare (eXtra) disks */
+ if (s.sparedisks) {
+ pr_err("spare-devices set twice: %d and %s\n",
+ s.sparedisks, optarg);
exit(2);
}
- if (level != UnSet && level <= 0 && level >= -1) {
- fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n",
- level);
+ if (s.level != UnSet && s.level <= 0 && s.level >= -1) {
+ pr_err("spare-devices setting is incompatible with raid level %d\n",
+ s.level);
exit(2);
}
- sparedisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || sparedisks < 0) {
- fprintf(stderr, Name ": invalid number of spare-devices: %s\n",
+ s.sparedisks = parse_num(optarg);
+ if (s.sparedisks < 0) {
+ pr_err("invalid number of spare-devices: %s\n",
optarg);
exit(2);
}
case O(INCREMENTAL,Auto):
case O(ASSEMBLE,'a'):
case O(ASSEMBLE,Auto): /* auto-creation of device node */
- autof = parse_auto(optarg, "--auto flag", 0);
+ c.autof = parse_auto(optarg, "--auto flag", 0);
continue;
case O(CREATE,Symlinks):
case O(ASSEMBLE,Force): /* force assembly */
case O(MISC,'f'): /* force zero */
case O(MISC,Force): /* force zero */
- force=1;
+ case O(MANAGE,Force): /* add device which is too large */
+ c.force=1;
continue;
-
/* now for the Assemble options */
+ case O(ASSEMBLE, FreezeReshape): /* Freeze reshape during
+ * initrd phase */
+ case O(INCREMENTAL, FreezeReshape):
+ c.freeze_reshape = 1;
+ continue;
case O(CREATE,'u'): /* uuid of array */
case O(ASSEMBLE,'u'): /* uuid of array */
if (ident.uuid_set) {
- fprintf(stderr, Name ": uuid cannot be set twice. "
- "Second value %s.\n", optarg);
+ pr_err("uuid cannot be set twice. Second value %s.\n", optarg);
exit(2);
}
if (parse_uuid(optarg, ident.uuid))
ident.uuid_set = 1;
else {
- fprintf(stderr,Name ": Bad uuid: %s\n", optarg);
+ pr_err("Bad uuid: %s\n", optarg);
exit(2);
}
continue;
case O(ASSEMBLE,'N'):
case O(MISC,'N'):
if (ident.name[0]) {
- fprintf(stderr, Name ": name cannot be set twice. "
- "Second value %s.\n", optarg);
+ pr_err("name cannot be set twice. Second value %s.\n", optarg);
exit(2);
}
- if (mode == MISC && !subarray) {
- fprintf(stderr, Name ": -N/--name only valid with --update-subarray in misc mode\n");
+ if (mode == MISC && !c.subarray) {
+ pr_err("-N/--name only valid with --update-subarray in misc mode\n");
exit(2);
}
if (strlen(optarg) > 32) {
- fprintf(stderr, Name ": name '%s' is too long, 32 chars max.\n",
+ pr_err("name '%s' is too long, 32 chars max.\n",
optarg);
exit(2);
}
case O(ASSEMBLE,'m'): /* super-minor for array */
case O(ASSEMBLE,SuperMinor):
if (ident.super_minor != UnSet) {
- fprintf(stderr, Name ": super-minor cannot be set twice. "
- "Second value: %s.\n", optarg);
+ pr_err("super-minor cannot be set twice. Second value: %s.\n", optarg);
exit(2);
}
if (strcmp(optarg, "dev")==0)
ident.super_minor = -2;
else {
- ident.super_minor = strtoul(optarg, &cp, 10);
- if (!optarg[0] || *cp) {
- fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg);
+ ident.super_minor = parse_num(optarg);
+ if (ident.super_minor < 0) {
+ pr_err("Bad super-minor number: %s.\n", optarg);
exit(2);
}
}
continue;
+ case O(ASSEMBLE,'o'):
+ case O(MANAGE,'o'):
+ case O(CREATE,'o'):
+ c.readonly = 1;
+ continue;
+
case O(ASSEMBLE,'U'): /* update the superblock */
case O(MISC,'U'):
- if (update) {
- fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n",
- update, optarg);
+ if (c.update) {
+ pr_err("Can only update one aspect of superblock, both %s and %s given.\n",
+ c.update, optarg);
exit(2);
}
- if (mode == MISC && !subarray) {
- fprintf(stderr, Name ": Only subarrays can be updated in misc mode\n");
+ if (mode == MISC && !c.subarray) {
+ pr_err("Only subarrays can be updated in misc mode\n");
exit(2);
}
- update = optarg;
- if (strcmp(update, "sparc2.2")==0)
+ c.update = optarg;
+ if (strcmp(c.update, "sparc2.2")==0)
+ continue;
+ if (strcmp(c.update, "super-minor") == 0)
+ continue;
+ if (strcmp(c.update, "summaries")==0)
continue;
- if (strcmp(update, "super-minor") == 0)
+ if (strcmp(c.update, "resync")==0)
continue;
- if (strcmp(update, "summaries")==0)
+ if (strcmp(c.update, "uuid")==0)
continue;
- if (strcmp(update, "resync")==0)
+ if (strcmp(c.update, "name")==0)
continue;
- if (strcmp(update, "uuid")==0)
+ if (strcmp(c.update, "homehost")==0)
continue;
- if (strcmp(update, "name")==0)
+ if (strcmp(c.update, "devicesize")==0)
continue;
- if (strcmp(update, "homehost")==0)
+ if (strcmp(c.update, "no-bitmap")==0)
continue;
- if (strcmp(update, "devicesize")==0)
+ if (strcmp(c.update, "bbl") == 0)
continue;
- if (strcmp(update, "no-bitmap")==0)
+ if (strcmp(c.update, "no-bbl") == 0)
continue;
- if (strcmp(update, "byteorder")==0) {
+ if (strcmp(c.update, "metadata") == 0)
+ continue;
+ if (strcmp(c.update, "revert-reshape") == 0)
+ continue;
+ if (strcmp(c.update, "byteorder")==0) {
if (ss) {
- fprintf(stderr, Name ": must not set metadata type with --update=byteorder.\n");
+ pr_err("must not set metadata type with --update=byteorder.\n");
exit(2);
}
for(i=0; !ss && superlist[i]; i++)
- ss = superlist[i]->match_metadata_desc("0.swap");
+ ss = superlist[i]->match_metadata_desc(
+ "0.swap");
if (!ss) {
- fprintf(stderr, Name ": INTERNAL ERROR cannot find 0.swap\n");
+ pr_err("INTERNAL ERROR cannot find 0.swap\n");
exit(2);
}
continue;
}
- if (strcmp(update,"?") == 0 ||
- strcmp(update, "help") == 0) {
+ if (strcmp(c.update,"?") == 0 ||
+ strcmp(c.update, "help") == 0) {
outf = stdout;
- fprintf(outf, Name ": ");
+ fprintf(outf, "%s: ", Name);
} else {
outf = stderr;
fprintf(outf,
- Name ": '--update=%s' is invalid. ",
- update);
+ "%s: '--update=%s' is invalid. ",
+ Name, c.update);
}
fprintf(outf, "Valid --update options are:\n"
" 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
" 'summaries', 'homehost', 'byteorder', 'devicesize',\n"
- " 'no-bitmap'\n");
+ " 'no-bitmap', 'metadata', 'revert-reshape'\n"
+ " 'bbl', 'no-bbl'\n"
+ );
exit(outf == stdout ? 0 : 2);
+ case O(MANAGE,'U'):
+ /* update=devicesize is allowed with --re-add */
+ if (devmode != 'A') {
+ pr_err("--update in Manage mode only allowed with --re-add.\n");
+ exit(1);
+ }
+ if (c.update) {
+ pr_err("Can only update one aspect of superblock, both %s and %s given.\n",
+ c.update, optarg);
+ exit(2);
+ }
+ c.update = optarg;
+ if (strcmp(c.update, "devicesize") != 0 &&
+ strcmp(c.update, "bbl") != 0 &&
+ strcmp(c.update, "no-bbl") != 0) {
+ pr_err("only 'devicesize', 'bbl' and 'no-bbl' can be updated with --re-add\n");
+ exit(2);
+ }
+ continue;
+
case O(INCREMENTAL,NoDegraded):
- fprintf(stderr, Name ": --no-degraded is deprecated in Incremental mode\n");
+ pr_err("--no-degraded is deprecated in Incremental mode\n");
case O(ASSEMBLE,NoDegraded): /* --no-degraded */
- runstop = -1; /* --stop isn't allowed for --assemble,
- * so we overload slightly */
+ c.runstop = -1; /* --stop isn't allowed for --assemble,
+ * so we overload slightly */
continue;
case O(ASSEMBLE,'c'):
case O(MISC, ConfigFile):
case O(MONITOR,'c'):
case O(MONITOR,ConfigFile):
+ case O(CREATE,ConfigFile):
if (configfile) {
- fprintf(stderr, Name ": configfile cannot be set twice. "
- "Second value is %s.\n", optarg);
+ pr_err("configfile cannot be set twice. Second value is %s.\n", optarg);
exit(2);
}
configfile = optarg;
case O(MISC,'s'):
case O(MONITOR,'s'):
case O(INCREMENTAL,'s'):
- scan = 1;
+ c.scan = 1;
continue;
case O(MONITOR,'m'): /* mail address */
case O(MONITOR,EMail):
if (mailaddr)
- fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
+ pr_err("only specify one mailaddress. %s ignored.\n",
optarg);
else
mailaddr = optarg;
case O(MONITOR,'p'): /* alert program */
case O(MONITOR,ProgramOpt): /* alert program */
if (program)
- fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
+ pr_err("only specify one alter program. %s ignored.\n",
optarg);
else
program = optarg;
case O(MONITOR,'r'): /* rebuild increments */
case O(MONITOR,Increment):
increments = atoi(optarg);
- if (increments>99 || increments<1) {
- fprintf(stderr, Name ": please specify positive integer between 1 and 99 as rebuild increments.\n");
+ if (increments > 99 || increments < 1) {
+ pr_err("please specify positive integer between 1 and 99 as rebuild increments.\n");
exit(2);
}
continue;
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",
+ if (c.delay)
+ pr_err("only specify delay once. %s ignored.\n",
optarg);
else {
- delay = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || delay<1) {
- fprintf(stderr, Name ": invalid delay: %s\n",
+ c.delay = parse_num(optarg);
+ if (c.delay < 1) {
+ pr_err("invalid delay: %s\n",
optarg);
exit(2);
}
continue;
case O(MONITOR,'i'): /* pid */
if (pidfile)
- fprintf(stderr, Name ": only specify one pid file. %s ignored.\n",
+ pr_err("only specify one pid file. %s ignored.\n",
optarg);
else
pidfile = optarg;
continue;
case O(MONITOR,'1'): /* oneshot */
oneshot = 1;
+ spare_sharing = 0;
continue;
case O(MONITOR,'t'): /* test */
- test = 1;
+ c.test = 1;
continue;
case O(MONITOR,'y'): /* log messages to syslog */
openlog("mdadm", LOG_PID, SYSLOG_FACILITY);
case O(MONITOR, NoSharing):
spare_sharing = 0;
continue;
+
/* now the general management options. Some are applicable
* to other modes. None have arguments.
*/
case O(MANAGE,'a'):
case O(MANAGE,Add): /* add a drive */
devmode = 'a';
- re_add = 0;
+ continue;
+ case O(MANAGE,AddSpare): /* add drive - never re-add */
+ devmode = 'S';
continue;
case O(MANAGE,ReAdd):
- devmode = 'a';
- re_add = 1;
+ devmode = 'A';
continue;
case O(MANAGE,'r'): /* remove a drive */
case O(MANAGE,Remove):
case O(INCREMENTAL,'f'):
case O(INCREMENTAL,Remove):
case O(INCREMENTAL,Fail): /* r for incremental is taken, use f
- * even though we will both fail and
- * remove the device */
+ * even though we will both fail and
+ * remove the device */
devmode = 'f';
continue;
+ case O(MANAGE,Replace):
+ /* Mark these devices for replacement */
+ devmode = 'R';
+ continue;
+ case O(MANAGE,With):
+ /* These are the replacements to use */
+ if (devmode != 'R') {
+ pr_err("--with must follow --replace\n");
+ exit(2);
+ }
+ devmode = 'W';
+ continue;
case O(INCREMENTAL,'R'):
case O(MANAGE,'R'):
case O(ASSEMBLE,'R'):
case O(BUILD,'R'):
case O(CREATE,'R'): /* Run the array */
- if (runstop < 0) {
- fprintf(stderr, Name ": Cannot both Stop and Run an array\n");
+ if (c.runstop < 0) {
+ pr_err("Cannot both Stop and Run an array\n");
exit(2);
}
- runstop = 1;
+ c.runstop = 1;
continue;
case O(MANAGE,'S'):
- if (runstop > 0) {
- fprintf(stderr, Name ": Cannot both Run and Stop an array\n");
+ if (c.runstop > 0) {
+ pr_err("Cannot both Run and Stop an array\n");
exit(2);
}
- runstop = -1;
+ c.runstop = -1;
continue;
case O(MANAGE,'t'):
- test = 1;
+ c.test = 1;
continue;
case O(MISC,'Q'):
case O(MISC,'D'):
case O(MISC,'E'):
- case O(MISC,'K'):
+ case O(MISC,KillOpt):
case O(MISC,'R'):
case O(MISC,'S'):
case O(MISC,'X'):
+ case O(MISC, ExamineBB):
case O(MISC,'o'):
case O(MISC,'w'):
case O(MISC,'W'):
case O(MISC, DetailPlatform):
case O(MISC, KillSubarray):
case O(MISC, UpdateSubarray):
+ case O(MISC, Dump):
+ case O(MISC, Restore):
+ case O(MISC ,Action):
+ if (opt == KillSubarray || opt == UpdateSubarray) {
+ if (c.subarray) {
+ pr_err("subarray can only be specified once\n");
+ exit(2);
+ }
+ c.subarray = optarg;
+ }
+ if (opt == Action) {
+ if (c.action) {
+ pr_err("Only one --action can be specified\n");
+ exit(2);
+ }
+ if (strcmp(optarg, "idle") == 0 ||
+ strcmp(optarg, "frozen") == 0 ||
+ strcmp(optarg, "check") == 0 ||
+ strcmp(optarg, "repair") == 0)
+ c.action = optarg;
+ else {
+ pr_err("action must be one of idle, frozen, check, repair\n");
+ exit(2);
+ }
+ }
if (devmode && devmode != opt &&
(devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
- fprintf(stderr, Name ": --examine/-E cannot be given with ");
+ pr_err("--examine/-E cannot be given with ");
if (devmode == 'E') {
if (option_index >= 0)
fprintf(stderr, "--%s\n",
exit(2);
}
devmode = opt;
+ if (opt == Dump || opt == Restore) {
+ if (dump_directory != NULL) {
+ pr_err("dump/restore directory specified twice: %s and %s\n",
+ dump_directory, optarg);
+ exit(2);
+ }
+ dump_directory = optarg;
+ }
+ continue;
+ case O(MISC, UdevRules):
+ if (devmode && devmode != opt) {
+ pr_err("--udev-rules must be the only option.\n");
+ } else {
+ if (udev_filename)
+ pr_err("only specify one udev rule filename. %s ignored.\n",
+ optarg);
+ else
+ udev_filename = optarg;
+ }
+ devmode = opt;
continue;
case O(MISC,'t'):
- test = 1;
+ c.test = 1;
continue;
case O(MISC, Sparc22):
if (devmode != 'E') {
- fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
+ pr_err("--sparc2.2 only allowed with --examine\n");
exit(2);
}
- SparcAdjust = 1;
+ c.SparcAdjust = 1;
continue;
case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
case O(ASSEMBLE,Bitmap):
if (!optarg) {
- fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n");
+ pr_err("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");
+ pr_err("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));
+ pr_err("cannot open bitmap file %s: %s\n", optarg, strerror(errno));
exit(2);
}
ident.bitmap_fd = bitmap_fd; /* for Assemble */
/* Specify a file into which grow might place a backup,
* or from which assemble might recover a backup
*/
- if (backup_file) {
- fprintf(stderr, Name ": backup file already specified, rejecting %s\n", optarg);
+ if (c.backup_file) {
+ pr_err("backup file already specified, rejecting %s\n", optarg);
exit(2);
}
- backup_file = optarg;
+ c.backup_file = optarg;
continue;
+ case O(GROW, Continue):
+ /* Continue interrupted grow
+ */
+ grow_continue = 1;
+ continue;
case O(ASSEMBLE, InvalidBackup):
/* Acknowledge that the backupfile is invalid, but ask
* to continue anyway
*/
- invalid_backup = 1;
+ c.invalid_backup = 1;
continue;
case O(BUILD,'b'):
case O(BUILD,Bitmap):
case O(CREATE,'b'):
case O(CREATE,Bitmap): /* here we create the bitmap */
- if (strcmp(optarg, "none") == 0) {
- fprintf(stderr, Name ": '--bitmap none' only"
- " support for --grow\n");
- exit(2);
- }
- /* FALL THROUGH */
case O(GROW,'b'):
case O(GROW,Bitmap):
if (strcmp(optarg, "internal")== 0 ||
strcmp(optarg, "none")== 0 ||
strchr(optarg, '/') != NULL) {
- bitmap_file = optarg;
+ s.bitmap_file = optarg;
continue;
}
/* probable typo */
- fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n"
+ pr_err("bitmap file must contain a '/', or be 'internal', or 'none'\n"
" not '%s'\n", optarg);
exit(2);
case O(GROW,BitmapChunk):
case O(BUILD,BitmapChunk):
case O(CREATE,BitmapChunk): /* bitmap chunksize */
- bitmap_chunk = parse_size(optarg);
- if (bitmap_chunk < 0 ||
- bitmap_chunk & (bitmap_chunk - 1)) {
- fprintf(stderr,
- Name ": invalid bitmap chunksize: %s\n",
- optarg);
+ s.bitmap_chunk = parse_size(optarg);
+ if (s.bitmap_chunk == 0 ||
+ s.bitmap_chunk == INVALID_SECTORS ||
+ s.bitmap_chunk & (s.bitmap_chunk - 1)) {
+ pr_err("invalid bitmap chunksize: %s\n",
+ optarg);
exit(2);
}
- /* convert sectors to B, chunk of 0 means 512B */
- bitmap_chunk = bitmap_chunk ? bitmap_chunk * 512 : 512;
+ s.bitmap_chunk = s.bitmap_chunk * 512;
continue;
case O(GROW, WriteBehind):
case O(BUILD, WriteBehind):
case O(CREATE, WriteBehind): /* write-behind mode */
- write_behind = DEFAULT_MAX_WRITE_BEHIND;
+ s.write_behind = DEFAULT_MAX_WRITE_BEHIND;
if (optarg) {
- write_behind = strtol(optarg, &c, 10);
- if (write_behind < 0 || *c ||
- write_behind > 16383) {
- fprintf(stderr, Name ": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg);
+ s.write_behind = parse_num(optarg);
+ if (s.write_behind < 0 ||
+ s.write_behind > 16383) {
+ pr_err("Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg);
exit(2);
}
}
* an error
*/
if (option_index > 0)
- fprintf(stderr, Name ":option --%s not valid in %s mode\n",
+ pr_err(":option --%s not valid in %s mode\n",
long_options[option_index].name,
map_num(modes, mode));
else
- fprintf(stderr, Name ": option -%c not valid in %s mode\n",
+ pr_err("option -%c not valid in %s mode\n",
opt, map_num(modes, mode));
exit(2);
}
if (print_help) {
- char *help_text = Help;
+ char *help_text;
if (print_help == 2)
help_text = OptionHelp;
else
- switch (mode) {
- case ASSEMBLE : help_text = Help_assemble; break;
- case BUILD : help_text = Help_build; break;
- case CREATE : help_text = Help_create; break;
- case MANAGE : help_text = Help_manage; break;
- case MISC : help_text = Help_misc; break;
- case MONITOR : help_text = Help_monitor; break;
- case GROW : help_text = Help_grow; break;
- case INCREMENTAL:help_text= Help_incr; break;
- }
+ help_text = mode_help[mode];
+ if (help_text == NULL)
+ help_text = Help;
fputs(help_text,stdout);
exit(0);
}
else if (strcasecmp(symlinks, "no") == 0)
ci->symlinks = 0;
else {
- fprintf(stderr, Name ": option --symlinks must be 'no' or 'yes'\n");
+ pr_err("option --symlinks must be 'no' or 'yes'\n");
exit(2);
}
}
*
* That is mosty checked in the per-mode stuff but...
*
- * For @,B,C and A without -s, the first device listed must be an md device
- * we check that here and open it.
+ * For @,B,C and A without -s, the first device listed must be
+ * an md device. We check that here and open it.
*/
- if (mode==MANAGE || mode == BUILD || mode == CREATE || mode == GROW ||
- (mode == ASSEMBLE && ! scan)) {
+ if (mode == MANAGE || mode == BUILD || mode == CREATE
+ || mode == GROW
+ || (mode == ASSEMBLE && ! c.scan)) {
if (devs_found < 1) {
- fprintf(stderr, Name ": an md device must be given in this mode\n");
+ pr_err("an md device must be given in this mode\n");
exit(2);
}
- if ((int)ident.super_minor == -2 && autof) {
- fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n");
+ if ((int)ident.super_minor == -2 && c.autof) {
+ pr_err("--super-minor=dev is incompatible with --auto\n");
exit(2);
}
if (mode == MANAGE || mode == GROW) {
/* non-existent device is OK */
mdfd = open_mddev(devlist->devname, 0);
if (mdfd == -2) {
- fprintf(stderr, Name ": device %s exists but is not an "
- "md array.\n", devlist->devname);
+ pr_err("device %s exists but is not an md array.\n", devlist->devname);
exit(1);
}
if ((int)ident.super_minor == -2) {
struct stat stb;
if (mdfd < 0) {
- fprintf(stderr, Name ": --super-minor=dev given, and "
- "listed device %s doesn't exist.\n",
+ pr_err("--super-minor=dev given, and listed device %s doesn't exist.\n",
devlist->devname);
exit(1);
}
}
}
- if (raiddisks) {
- if (raiddisks == 1 && !force && level != -5) {
- fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n"
+ if (s.raiddisks) {
+ if (s.raiddisks == 1 && !c.force && s.level != LEVEL_FAULTY) {
+ pr_err("'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);
}
}
- if (homehost == NULL)
- homehost = conf_get_homehost(&require_homehost);
- if (homehost == NULL || strcmp(homehost, "<system>")==0) {
+ if (c.homehost == NULL && c.require_homehost)
+ c.homehost = conf_get_homehost(&c.require_homehost);
+ if (c.homehost == NULL || strcasecmp(c.homehost, "<system>")==0) {
if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) {
sys_hostname[sizeof(sys_hostname)-1] = 0;
- homehost = sys_hostname;
+ c.homehost = sys_hostname;
}
}
+ if (c.homehost && (!c.homehost[0] || strcasecmp(c.homehost, "<none>") == 0)) {
+ c.homehost = NULL;
+ c.require_homehost = 0;
+ }
- if ((mode != MISC || devmode != 'E') &&
- geteuid() != 0) {
- fprintf(stderr, Name ": must be super-user to perform this action\n");
+ if (c.backup_file && data_offset != INVALID_SECTORS) {
+ pr_err("--backup-file and --data-offset are incompatible\n");
+ exit(2);
+ }
+
+ if ((mode == MISC && devmode == 'E')
+ || (mode == MONITOR && spare_sharing == 0))
+ /* Anyone may try this */;
+ else if (geteuid() != 0) {
+ pr_err("must be super-user to perform this action\n");
exit(1);
}
- ident.autof = autof;
+ ident.autof = c.autof;
+
+ if (c.scan && c.verbose < 2)
+ /* --scan implied --brief unless -vv */
+ c.brief = 1;
rv = 0;
switch(mode) {
case MANAGE:
/* readonly, add/remove, readwrite, runstop */
- if (readonly>0)
- rv = Manage_ro(devlist->devname, mdfd, readonly);
+ if (c.readonly > 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
if (!rv && devs_found>1)
rv = Manage_subdevs(devlist->devname, mdfd,
- devlist->next, verbose-quiet, test);
- if (!rv && readonly < 0)
- rv = Manage_ro(devlist->devname, mdfd, readonly);
- if (!rv && runstop)
- rv = Manage_runstop(devlist->devname, mdfd, runstop, quiet);
+ devlist->next, c.verbose, c.test,
+ c.update, c.force);
+ if (!rv && c.readonly < 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
+ if (!rv && c.runstop > 0)
+ rv = Manage_run(devlist->devname, mdfd, &c);
+ if (!rv && c.runstop < 0)
+ rv = Manage_stop(devlist->devname, mdfd, c.verbose, 0);
break;
case ASSEMBLE:
if (devs_found == 1 && ident.uuid_set == 0 &&
- ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) {
+ ident.super_minor == UnSet && ident.name[0] == 0 && !c.scan ) {
/* Only a device has been given, so get details from config file */
struct mddev_ident *array_ident = conf_get_ident(devlist->devname);
if (array_ident == NULL) {
- fprintf(stderr, Name ": %s not identified in config file.\n",
+ pr_err("%s not identified in config file.\n",
devlist->devname);
rv |= 1;
if (mdfd >= 0)
close(mdfd);
} else {
if (array_ident->autof == 0)
- array_ident->autof = autof;
+ array_ident->autof = c.autof;
rv |= Assemble(ss, devlist->devname, array_ident,
- NULL, backup_file, invalid_backup,
- readonly, runstop, update,
- homehost, require_homehost,
- verbose-quiet, force);
+ NULL, &c);
}
- } else if (!scan)
+ } else if (!c.scan)
rv = Assemble(ss, devlist->devname, &ident,
- devlist->next, backup_file, invalid_backup,
- readonly, runstop, update,
- homehost, require_homehost,
- verbose-quiet, force);
- else if (devs_found>0) {
- if (update && devs_found > 1) {
- fprintf(stderr, Name ": can only update a single array at a time\n");
+ devlist->next, &c);
+ else if (devs_found > 0) {
+ if (c.update && devs_found > 1) {
+ pr_err("can only update a single array at a time\n");
exit(1);
}
- if (backup_file && devs_found > 1) {
- fprintf(stderr, Name ": can only assemble a single array when providing a backup file.\n");
+ if (c.backup_file && devs_found > 1) {
+ pr_err("can only assemble a single array when providing a backup file.\n");
exit(1);
}
for (dv = devlist ; dv ; dv=dv->next) {
struct mddev_ident *array_ident = conf_get_ident(dv->devname);
if (array_ident == NULL) {
- fprintf(stderr, Name ": %s not identified in config file.\n",
+ pr_err("%s not identified in config file.\n",
dv->devname);
rv |= 1;
continue;
}
if (array_ident->autof == 0)
- array_ident->autof = autof;
+ array_ident->autof = c.autof;
rv |= Assemble(ss, dv->devname, array_ident,
- NULL, backup_file, invalid_backup,
- readonly, runstop, update,
- homehost, require_homehost,
- verbose-quiet, force);
+ NULL, &c);
}
} else {
- struct mddev_ident *a, *array_list = conf_get_ident(NULL);
- struct mddev_dev *devlist = conf_get_devs();
- int cnt = 0;
- int failures, successes;
- if (devlist == NULL) {
- fprintf(stderr, Name ": No devices listed in conf file were found.\n");
+ if (c.update) {
+ pr_err("--update not meaningful with a --scan assembly.\n");
exit(1);
}
- if (update) {
- fprintf(stderr, Name ": --update not meaningful with a --scan assembly.\n");
+ if (c.backup_file) {
+ pr_err("--backup_file not meaningful with a --scan assembly.\n");
exit(1);
}
- if (backup_file) {
- fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n");
- exit(1);
- }
- for (a = array_list; a ; a = a->next) {
- a->assembled = 0;
- if (a->autof == 0)
- a->autof = autof;
- }
- do {
- failures = 0;
- successes = 0;
- rv = 0;
- for (a = array_list; a ; a = a->next) {
- int r;
- if (a->assembled)
- continue;
- if (a->devname &&
- strcasecmp(a->devname, "<ignore>") == 0)
- continue;
-
- r = Assemble(ss, a->devname,
- a,
- NULL, NULL, 0,
- readonly, runstop, NULL,
- homehost, require_homehost,
- verbose-quiet, force);
- if (r == 0) {
- a->assembled = 1;
- successes++;
- } else
- failures++;
- rv |= r;
- cnt++;
- }
- } while (failures && successes);
- if (homehost && cnt == 0) {
- /* Maybe we can auto-assemble something.
- * Repeatedly call Assemble in auto-assemble mode
- * until it fails
- */
- int rv2;
- int acnt;
- ident.autof = autof;
- do {
- struct mddev_dev *devlist = conf_get_devs();
- acnt = 0;
- do {
- rv2 = Assemble(ss, NULL,
- &ident,
- devlist, NULL, 0,
- readonly, runstop, NULL,
- homehost, require_homehost,
- verbose-quiet, force);
- if (rv2==0) {
- cnt++;
- acnt++;
- }
- if (rv2 == 1)
- /* found something so even though assembly failed we
- * want to avoid auto-updates
- */
- auto_update_home = 0;
- } while (rv2!=2);
- /* Incase there are stacked devices, we need to go around again */
- } while (acnt);
-#if 0
- if (cnt == 0 && auto_update_home && homehost) {
- /* Nothing found, maybe we need to bootstrap homehost info */
- do {
- acnt = 0;
- do {
- rv2 = Assemble(
- ss, NULL,
- &ident,
- NULL, NULL, 0,
- readonly, runstop,
- "homehost",
- homehost,
- require_homehost,
- verbose-quiet, force);
- if (rv2==0) {
- cnt++;
- acnt++;
- }
- } while (rv2!=2);
- /* Incase there are stacked devices, we need to go around again */
- } while (acnt);
- }
-#endif
- if (cnt == 0 && rv == 0) {
- fprintf(stderr, Name ": No arrays found in config file or automatically\n");
- rv = 1;
- } else if (cnt)
- rv = 0;
- } else if (cnt == 0 && rv == 0) {
- fprintf(stderr, Name ": No arrays found in config file\n");
- rv = 1;
- }
+ rv = scan_assemble(ss, &c, &ident);
}
+
break;
case BUILD:
- if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
- if (write_behind && !bitmap_file) {
- fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
rv = 1;
break;
}
- if (raiddisks == 0) {
- fprintf(stderr, Name ": no raid-devices specified.\n");
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
rv = 1;
break;
}
- if (bitmap_file) {
- if (strcmp(bitmap_file, "internal")==0) {
- fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n");
+ if (s.bitmap_file) {
+ if (strcmp(s.bitmap_file, "internal")==0) {
+ pr_err("'internal' bitmaps not supported with --build\n");
rv |= 1;
break;
}
}
- rv = Build(devlist->devname, chunk, level, layout,
- raiddisks, devlist->next, assume_clean,
- bitmap_file, bitmap_chunk, write_behind,
- delay, verbose-quiet, autof, size);
+ rv = Build(devlist->devname, devlist->next, &s, &c);
break;
case CREATE:
- if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
- if (write_behind && !bitmap_file) {
- fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
rv = 1;
break;
}
- if (raiddisks == 0) {
- fprintf(stderr, Name ": no raid-devices specified.\n");
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
rv = 1;
break;
}
- rv = Create(ss, devlist->devname, chunk, level, layout, size<0 ? 0 : size,
- raiddisks, sparedisks, ident.name, homehost,
- ident.uuid_set ? ident.uuid : NULL,
- devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean,
- bitmap_file, bitmap_chunk, write_behind, delay, autof);
+ rv = Create(ss, devlist->devname,
+ ident.name, ident.uuid_set ? ident.uuid : NULL,
+ devs_found-1, devlist->next,
+ &s, &c, data_offset);
break;
case MISC:
if (devmode == 'E') {
- if (devlist == NULL && !scan) {
- fprintf(stderr, Name ": No devices to examine\n");
+ if (devlist == NULL && !c.scan) {
+ pr_err("No devices to examine\n");
exit(2);
}
if (devlist == NULL)
devlist = conf_get_devs();
if (devlist == NULL) {
- fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile);
+ pr_err("No devices listed in %s\n", configfile?configfile:DefaultConfFile);
exit(1);
}
- if (brief && verbose)
- brief = 2;
- rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief,
- export, scan,
- SparcAdjust, ss, homehost);
+ rv = Examine(devlist, &c, ss);
} else if (devmode == DetailPlatform) {
- rv = Detail_Platform(ss ? ss->ss : NULL, ss ? scan : 1, verbose);
- } else {
- if (devlist == NULL) {
- if ((devmode=='D' || devmode == Waitclean) && scan) {
- /* apply --detail or --wait-clean to
- * all devices in /proc/mdstat
- */
- struct mdstat_ent *ms = mdstat_read(0, 1);
- struct mdstat_ent *e;
- struct map_ent *map = NULL;
- int members;
- int v = verbose>1?0:verbose+1;
-
- for (members = 0; members <= 1; members++) {
- for (e=ms ; e ; e=e->next) {
- char *name;
- struct map_ent *me;
- int member = e->metadata_version &&
- strncmp(e->metadata_version,
- "external:/", 10) == 0;
- if (members != member)
- continue;
- me = map_by_devnum(&map, e->devnum);
- if (me && me->path
- && strcmp(me->path, "/unknown") != 0)
- name = me->path;
- else
- name = get_md_name(e->devnum);
-
- if (!name) {
- fprintf(stderr, Name ": cannot find device file for %s\n",
- e->dev);
- continue;
- }
- if (devmode == 'D')
- rv |= Detail(name, v,
- export, test,
- homehost);
- else
- rv |= WaitClean(name, -1, v);
- put_md_name(name);
- }
- }
- free_mdstat(ms);
- } else if (devmode == 'S' && scan) {
- /* apply --stop to all devices in /proc/mdstat */
- /* Due to possible stacking of devices, repeat until
- * nothing more can be stopped
- */
- int progress=1, err;
- int last = 0;
- do {
- struct mdstat_ent *ms = mdstat_read(0, 0);
- struct mdstat_ent *e;
-
- if (!progress) last = 1;
- progress = 0; err = 0;
- for (e=ms ; e ; e=e->next) {
- char *name = get_md_name(e->devnum);
-
- if (!name) {
- fprintf(stderr, Name ": cannot find device file for %s\n",
- e->dev);
- continue;
- }
- mdfd = open_mddev(name, 1);
- if (mdfd >= 0) {
- if (Manage_runstop(name, mdfd, -1, quiet?1:last?0:-1))
- err = 1;
- else
- progress = 1;
- close(mdfd);
- }
-
- put_md_name(name);
- }
- free_mdstat(ms);
- } while (!last && err);
- if (err) rv |= 1;
- } else {
- fprintf(stderr, Name ": No devices given.\n");
- exit(2);
- }
- }
- for (dv=devlist ; dv; dv=dv->next) {
- switch(dv->disposition) {
- case 'D':
- rv |= Detail(dv->devname,
- brief?1+verbose:0,
- export, test, homehost);
- continue;
- case 'K': /* Zero superblock */
- if (ss)
- rv |= Kill(dv->devname, ss, force, quiet,0);
- else {
- int q = quiet;
- do {
- rv |= Kill(dv->devname, NULL, force, q, 0);
- q = 1;
- } while (rv == 0);
- rv &= ~2;
- }
- continue;
- case 'Q':
- rv |= Query(dv->devname); continue;
- case 'X':
- rv |= ExamineBitmap(dv->devname, brief, ss); continue;
- case 'W':
- case WaitOpt:
- rv |= Wait(dv->devname); continue;
- case Waitclean:
- rv |= WaitClean(dv->devname, -1, verbose-quiet); continue;
- case KillSubarray:
- rv |= Kill_subarray(dv->devname, subarray, quiet);
- continue;
- case UpdateSubarray:
- if (update == NULL) {
- fprintf(stderr,
- Name ": -U/--update must be specified with --update-subarray\n");
- rv |= 1;
- continue;
- }
- rv |= Update_subarray(dv->devname, subarray, update, &ident, quiet);
- continue;
- }
- mdfd = open_mddev(dv->devname, 1);
- if (mdfd>=0) {
- switch(dv->disposition) {
- case 'R':
- rv |= Manage_runstop(dv->devname, mdfd, 1, quiet); break;
- case 'S':
- rv |= Manage_runstop(dv->devname, mdfd, -1, quiet); break;
- case 'o':
- rv |= Manage_ro(dv->devname, mdfd, 1); break;
- case 'w':
- rv |= Manage_ro(dv->devname, mdfd, -1); break;
- }
- close(mdfd);
- } else
- rv |= 1;
+ rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1,
+ c.verbose, c.export,
+ devlist ? devlist->devname : NULL);
+ } else if (devlist == NULL) {
+ if (devmode == 'S' && c.scan)
+ rv = stop_scan(c.verbose);
+ else if ((devmode == 'D' || devmode == Waitclean) && c.scan)
+ rv = misc_scan(devmode, &c);
+ else if (devmode == UdevRules)
+ rv = Write_rules(udev_filename);
+ else {
+ pr_err("No devices given.\n");
+ exit(2);
}
- }
+ } else
+ rv = misc_list(devlist, &ident, dump_directory, ss, &c);
break;
case MONITOR:
- if (!devlist && !scan) {
- fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n");
+ if (!devlist && !c.scan) {
+ pr_err("Cannot monitor: need --scan or at least one device\n");
rv = 1;
break;
}
if (pidfile && !daemonise) {
- fprintf(stderr, Name ": Cannot write a pid file when not in daemon mode\n");
+ pr_err("Cannot write a pid file when not in daemon mode\n");
rv = 1;
break;
}
- if (delay == 0) {
+ if (c.delay == 0) {
if (get_linux_version() > 2006016)
/* mdstat responds to poll */
- delay = 1000;
+ c.delay = 1000;
else
- delay = 60;
+ c.delay = 60;
}
+ if (c.delay == 0)
+ c.delay = 60;
rv= Monitor(devlist, mailaddr, program,
- delay?delay:60, daemonise, scan, oneshot,
- dosyslog, test, pidfile, increments, spare_sharing);
+ &c, daemonise, oneshot,
+ dosyslog, pidfile, increments,
+ spare_sharing);
break;
case GROW:
- if (array_size >= 0) {
+ if (array_size > 0) {
/* alway impose array size first, independent of
* anything else
* Do not allow level or raid_disks changes at the
*/
struct mdinfo sra;
int err;
- if (raiddisks || level != UnSet) {
- fprintf(stderr, Name ": cannot change array size in same operation "
- "as changing raiddisks or level.\n"
+ if (s.raiddisks || s.level != UnSet) {
+ pr_err("cannot change array size in same operation as changing raiddisks or level.\n"
" Change size first, then check that data is still intact.\n");
rv = 1;
break;
}
- sysfs_init(&sra, mdfd, 0);
- if (array_size == 0)
+ sysfs_init(&sra, mdfd, NULL);
+ if (array_size == MAX_SIZE)
err = sysfs_set_str(&sra, NULL, "array_size", "default");
else
err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2);
if (err < 0) {
if (errno == E2BIG)
- fprintf(stderr, Name ": --array-size setting"
- " is too large.\n");
+ pr_err("--array-size setting is too large.\n");
else
- fprintf(stderr, Name ": current kernel does"
- " not support setting --array-size\n");
+ pr_err("current kernel does not support setting --array-size\n");
rv = 1;
break;
}
}
- if (devs_found > 1) {
-
+ if (devs_found > 1 && s.raiddisks == 0 && s.level == UnSet) {
/* must be '-a'. */
- if (size >= 0 || raiddisks || chunk || layout_str != NULL || bitmap_file) {
- fprintf(stderr, Name ": --add cannot be used with other geometry changes in --grow mode\n");
+ if (s.size > 0 || s.chunk || s.layout_str != NULL || s.bitmap_file) {
+ pr_err("--add cannot be used with other geometry changes in --grow mode\n");
rv = 1;
break;
}
for (dv=devlist->next; dv ; dv=dv->next) {
- rv = Grow_Add_device(devlist->devname, mdfd, dv->devname);
+ rv = Grow_Add_device(devlist->devname, mdfd,
+ dv->devname);
if (rv)
break;
}
- } else if (bitmap_file) {
- if (size >= 0 || raiddisks || chunk || layout_str != NULL) {
- fprintf(stderr, Name ": --bitmap changes cannot be used with other geometry changes in --grow mode\n");
+ } else if (s.bitmap_file) {
+ if (s.size > 0 || s.raiddisks || s.chunk ||
+ s.layout_str != NULL || devs_found > 1) {
+ pr_err("--bitmap changes cannot be used with other geometry changes in --grow mode\n");
rv = 1;
break;
}
- if (delay == 0)
- delay = DEFAULT_BITMAP_DELAY;
- rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file,
- bitmap_chunk, delay, write_behind, force);
- } else if (size >= 0 || raiddisks != 0 || layout_str != NULL
- || chunk != 0 || level != UnSet) {
- rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file,
- size, level, layout_str, chunk, raiddisks);
- } else if (array_size < 0)
- fprintf(stderr, Name ": no changes to --grow\n");
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ rv = Grow_addbitmap(devlist->devname, mdfd, &c, &s);
+ } else if (grow_continue)
+ rv = Grow_continue_command(devlist->devname,
+ mdfd, c.backup_file,
+ c.verbose);
+ else if (s.size > 0 || s.raiddisks || s.layout_str != NULL
+ || s.chunk != 0 || s.level != UnSet
+ || data_offset != INVALID_SECTORS) {
+ rv = Grow_reshape(devlist->devname, mdfd,
+ devlist->next,
+ data_offset, &c, &s);
+ } else if (array_size == 0)
+ pr_err("no changes to --grow\n");
break;
case INCREMENTAL:
if (rebuild_map) {
RebuildMap();
}
- if (scan) {
- if (runstop <= 0) {
- fprintf(stderr, Name
- ": --incremental --scan meaningless without --run.\n");
+ if (c.scan) {
+ rv = 1;
+ if (devlist) {
+ pr_err("In --incremental mode, a device cannot be given with --scan.\n");
+ break;
+ }
+ if (c.runstop <= 0) {
+ pr_err("--incremental --scan meaningless without --run.\n");
break;
}
if (devmode == 'f') {
- fprintf(stderr, Name
- ": --incremental --scan --fail not supported.\n");
+ pr_err("--incremental --scan --fail not supported.\n");
break;
}
- rv = IncrementalScan(verbose);
+ rv = IncrementalScan(&c, NULL);
}
if (!devlist) {
- if (!rebuild_map && !scan) {
- fprintf(stderr, Name
- ": --incremental requires a device.\n");
+ if (!rebuild_map && !c.scan) {
+ pr_err("--incremental requires a device.\n");
rv = 1;
}
break;
}
- if (devlist->next) {
- fprintf(stderr, Name
- ": --incremental can only handle one device.\n");
- rv = 1;
- break;
- }
- if (devmode == 'f')
+ if (devmode == 'f') {
+ if (devlist->next) {
+ pr_err("'--incremental --fail' can only handle one device.\n");
+ rv = 1;
+ break;
+ }
rv = IncrementalRemove(devlist->devname, remove_path,
- verbose-quiet);
- else
- rv = Incremental(devlist->devname, verbose-quiet,
- runstop, ss, homehost,
- require_homehost, autof);
+ c.verbose);
+ } else
+ rv = Incremental(devlist, &c, ss);
break;
case AUTODETECT:
autodetect();
}
exit(rv);
}
+
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident)
+{
+ struct mddev_ident *a, *array_list = conf_get_ident(NULL);
+ struct mddev_dev *devlist = conf_get_devs();
+ struct map_ent *map = NULL;
+ int cnt = 0;
+ int rv = 0;
+ int failures, successes;
+
+ if (conf_verify_devnames(array_list)) {
+ pr_err("Duplicate MD device names in conf file were found.\n");
+ return 1;
+ }
+ if (devlist == NULL) {
+ pr_err("No devices listed in conf file were found.\n");
+ return 1;
+ }
+ for (a = array_list; a ; a = a->next) {
+ a->assembled = 0;
+ if (a->autof == 0)
+ a->autof = c->autof;
+ }
+ if (map_lock(&map))
+ pr_err("failed to get exclusive lock on mapfile\n");
+ do {
+ failures = 0;
+ successes = 0;
+ rv = 0;
+ for (a = array_list; a ; a = a->next) {
+ int r;
+ if (a->assembled)
+ continue;
+ if (a->devname &&
+ strcasecmp(a->devname, "<ignore>") == 0)
+ continue;
+
+ r = Assemble(ss, a->devname,
+ a, NULL, c);
+ if (r == 0) {
+ a->assembled = 1;
+ successes++;
+ } else
+ failures++;
+ rv |= r;
+ cnt++;
+ }
+ } while (failures && successes);
+ if (c->homehost && cnt == 0) {
+ /* Maybe we can auto-assemble something.
+ * Repeatedly call Assemble in auto-assemble mode
+ * until it fails
+ */
+ int rv2;
+ int acnt;
+ ident->autof = c->autof;
+ do {
+ struct mddev_dev *devlist = conf_get_devs();
+ acnt = 0;
+ do {
+ rv2 = Assemble(ss, NULL,
+ ident,
+ devlist, c);
+ if (rv2==0) {
+ cnt++;
+ acnt++;
+ }
+ } while (rv2!=2);
+ /* Incase there are stacked devices, we need to go around again */
+ } while (acnt);
+ if (cnt == 0 && rv == 0) {
+ pr_err("No arrays found in config file or automatically\n");
+ rv = 1;
+ } else if (cnt)
+ rv = 0;
+ } else if (cnt == 0 && rv == 0) {
+ pr_err("No arrays found in config file\n");
+ rv = 1;
+ }
+ map_unlock(&map);
+ return rv;
+}
+
+static int misc_scan(char devmode, struct context *c)
+{
+ /* apply --detail or --wait-clean to
+ * all devices in /proc/mdstat
+ */
+ struct mdstat_ent *ms = mdstat_read(0, 1);
+ struct mdstat_ent *e;
+ struct map_ent *map = NULL;
+ int members;
+ int rv = 0;
+
+ for (members = 0; members <= 1; members++) {
+ for (e=ms ; e ; e=e->next) {
+ char *name = NULL;
+ struct map_ent *me;
+ struct stat stb;
+ int member = e->metadata_version &&
+ strncmp(e->metadata_version,
+ "external:/", 10) == 0;
+ if (members != member)
+ continue;
+ me = map_by_devnm(&map, e->devnm);
+ if (me && me->path
+ && strcmp(me->path, "/unknown") != 0)
+ name = me->path;
+ if (name == NULL ||
+ stat(name, &stb) != 0)
+ name = get_md_name(e->devnm);
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->devnm);
+ continue;
+ }
+ if (devmode == 'D')
+ rv |= Detail(name, c);
+ else
+ rv |= WaitClean(name, -1, c->verbose);
+ put_md_name(name);
+ }
+ }
+ free_mdstat(ms);
+ return rv;
+}
+
+static int stop_scan(int verbose)
+{
+ /* apply --stop to all devices in /proc/mdstat */
+ /* Due to possible stacking of devices, repeat until
+ * nothing more can be stopped
+ */
+ int progress=1, err;
+ int last = 0;
+ int rv = 0;
+ do {
+ struct mdstat_ent *ms = mdstat_read(0, 0);
+ struct mdstat_ent *e;
+
+ if (!progress) last = 1;
+ progress = 0; err = 0;
+ for (e=ms ; e ; e=e->next) {
+ char *name = get_md_name(e->devnm);
+ int mdfd;
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->devnm);
+ continue;
+ }
+ mdfd = open_mddev(name, 1);
+ if (mdfd >= 0) {
+ if (Manage_stop(name, mdfd, verbose, !last))
+ err = 1;
+ else
+ progress = 1;
+ close(mdfd);
+ }
+
+ put_md_name(name);
+ }
+ free_mdstat(ms);
+ } while (!last && err);
+ if (err)
+ rv |= 1;
+ return rv;
+}
+
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ char *dump_directory,
+ struct supertype *ss, struct context *c)
+{
+ struct mddev_dev *dv;
+ int rv = 0;
+
+ for (dv=devlist ; dv; dv=(rv & 16) ? NULL : dv->next) {
+ int mdfd;
+
+ switch(dv->disposition) {
+ case 'D':
+ rv |= Detail(dv->devname, c);
+ continue;
+ case KillOpt: /* Zero superblock */
+ if (ss)
+ rv |= Kill(dv->devname, ss, c->force, c->verbose,0);
+ else {
+ int v = c->verbose;
+ do {
+ rv |= Kill(dv->devname, NULL, c->force, v, 0);
+ v = -1;
+ } while (rv == 0);
+ rv &= ~2;
+ }
+ continue;
+ case 'Q':
+ rv |= Query(dv->devname); continue;
+ case 'X':
+ rv |= ExamineBitmap(dv->devname, c->brief, ss); continue;
+ case ExamineBB:
+ rv |= ExamineBadblocks(dv->devname, c->brief, ss); continue;
+ case 'W':
+ case WaitOpt:
+ rv |= Wait(dv->devname); continue;
+ case Waitclean:
+ rv |= WaitClean(dv->devname, -1, c->verbose); continue;
+ case KillSubarray:
+ rv |= Kill_subarray(dv->devname, c->subarray, c->verbose);
+ continue;
+ case UpdateSubarray:
+ if (c->update == NULL) {
+ pr_err("-U/--update must be specified with --update-subarray\n");
+ rv |= 1;
+ continue;
+ }
+ rv |= Update_subarray(dv->devname, c->subarray,
+ c->update, ident, c->verbose);
+ continue;
+ case Dump:
+ rv |= Dump_metadata(dv->devname, dump_directory, c, ss);
+ continue;
+ case Restore:
+ rv |= Restore_metadata(dv->devname, dump_directory, c, ss,
+ (dv == devlist && dv->next == NULL));
+ continue;
+ case Action:
+ rv |= SetAction(dv->devname, c->action);
+ continue;
+ }
+ if (dv->devname[0] == '/')
+ mdfd = open_mddev(dv->devname, 1);
+ else {
+ mdfd = open_dev(dv->devname);
+ if (mdfd < 0)
+ pr_err("Cannot open %s\n", dv->devname);
+ }
+ if (mdfd>=0) {
+ switch(dv->disposition) {
+ case 'R':
+ c->runstop = 1;
+ rv |= Manage_run(dv->devname, mdfd, c); break;
+ case 'S':
+ rv |= Manage_stop(dv->devname, mdfd, c->verbose, 0); break;
+ case 'o':
+ rv |= Manage_ro(dv->devname, mdfd, 1); break;
+ case 'w':
+ rv |= Manage_ro(dv->devname, mdfd, -1); break;
+ }
+ close(mdfd);
+ } else
+ rv |= 1;
+ }
+ return rv;
+}
+
+int SetAction(char *dev, char *action)
+{
+ int fd = open(dev, O_RDONLY);
+ struct mdinfo mdi;
+ if (fd < 0) {
+ pr_err("Couldn't open %s: %s\n", dev, strerror(errno));
+ return 1;
+ }
+ sysfs_init(&mdi, fd, NULL);
+ close(fd);
+ if (!mdi.sys_name[0]) {
+ pr_err("%s is no an md array\n", dev);
+ return 1;
+ }
+
+ if (sysfs_set_str(&mdi, NULL, "sync_action", action) < 0) {
+ pr_err("Count not set action for %s to %s: %s\n",
+ dev, action, strerror(errno));
+ return 1;
+ }
+ return 0;
+}