/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2012 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 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 i;
unsigned long long array_size = 0;
+ unsigned long long data_offset = INVALID_SECTORS;
struct mddev_ident ident;
char *configfile = NULL;
int devmode = 0;
int rebuild_map = 0;
char *remove_path = NULL;
char *udev_filename = NULL;
+ char *dump_directory = NULL;
int print_help = 0;
FILE *outf;
c.homehost = optarg;
continue;
- /*
- * --offroot sets first char of argv[0] to @. This is used
- * by systemd to signal that the task was launched from
- * initrd/initramfs and should be preserved during shutdown
- */
case OffRootOpt:
- argv[0][0] = '@';
- __offroot = 1;
+ /* Silently ignore old option */
continue;
case Prefer:
break;
case 'a':
case Add:
+ case AddSpare:
case 'r':
case Remove:
+ case Replace:
+ case With:
case 'f':
case Fail:
case ReAdd: /* re-add */
case 'E':
case 'X':
case 'Q':
+ case ExamineBB:
+ case Dump:
+ case Restore:
+ case Action:
newmode = MISC;
break;
if (mode == MISC && devs_found) {
pr_err("No action given for %s in --misc mode\n",
devlist->devname);
- fprintf(stderr," Action options must come before device names\n");
+ cont_err("Action options must come before device names\n");
exit(2);
}
} else {
}
if (devs_found > 0 && mode == MANAGE && !devmode) {
- pr_err("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) {
- pr_err("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 = xmalloc(sizeof(*dv));
case O(BUILD,'c'): /* chunk or rounding */
case O(BUILD,ChunkSize): /* chunk or rounding */
if (s.chunk) {
- pr_err("chunk/rounding may only be specified once. "
- "Second value is %s.\n", optarg);
+ pr_err("chunk/rounding may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
s.chunk = parse_size(optarg);
- if (s.chunk < 8 || (s.chunk&1)) {
+ if (s.chunk == INVALID_SECTORS ||
+ s.chunk < 8 || (s.chunk&1)) {
pr_err("invalid chunk/rounding value: %s\n",
optarg);
exit(2);
writemostly = 2;
continue;
-
case O(GROW,'z'):
case O(CREATE,'z'):
case O(BUILD,'z'): /* size */
if (s.size > 0) {
- pr_err("size may only be specified once. "
- "Second value is %s.\n", optarg);
+ pr_err("size may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
if (strcmp(optarg, "max")==0)
s.size = MAX_SIZE;
else {
s.size = parse_size(optarg);
- if (s.size < 8) {
+ if (s.size == INVALID_SECTORS ||
+ s.size < 8) {
pr_err("invalid size: %s\n",
optarg);
exit(2);
case O(GROW,'Z'): /* array size */
if (array_size > 0) {
- pr_err("array-size may only be specified once. "
- "Second value is %s.\n", optarg);
+ pr_err("array-size may only be specified once. Second value is %s.\n", optarg);
exit(2);
}
if (strcmp(optarg, "max") == 0)
array_size = MAX_SIZE;
else {
array_size = parse_size(optarg);
- if (array_size <= 0) {
+ 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 (s.level != UnSet) {
- pr_err("raid level may only be set once. "
- "Second value is %s.\n", optarg);
+ pr_err("raid level may only be set once. Second value is %s.\n", optarg);
exit(2);
}
s.level = map_name(pers, optarg);
case O(GROW, 'p'): /* new layout */
case O(GROW, Layout):
if (s.layout_str) {
- pr_err("layout may only be sent once. "
- "Second value was %s\n", optarg);
+ pr_err("layout may only be sent once. Second value was %s\n", optarg);
exit(2);
}
s.layout_str = optarg;
case O(BUILD,'p'): /* faulty layout */
case O(BUILD,Layout):
if (s.layout != UnSet) {
- pr_err("layout may only be sent once. "
- "Second value was %s\n", optarg);
+ pr_err("layout may only be sent once. Second value was %s\n", optarg);
exit(2);
}
switch(s.level) {
case O(CREATE,'u'): /* uuid of array */
case O(ASSEMBLE,'u'): /* uuid of array */
if (ident.uuid_set) {
- pr_err("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))
case O(ASSEMBLE,'N'):
case O(MISC,'N'):
if (ident.name[0]) {
- pr_err("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 && !c.subarray) {
case O(ASSEMBLE,'m'): /* super-minor for array */
case O(ASSEMBLE,SuperMinor):
if (ident.super_minor != UnSet) {
- pr_err("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)
case O(ASSEMBLE,'U'): /* update the superblock */
case O(MISC,'U'):
if (c.update) {
- pr_err("Can only update one aspect"
- " of superblock, both %s and %s given.\n",
+ pr_err("Can only update one aspect of superblock, both %s and %s given.\n",
c.update, optarg);
exit(2);
}
if (mode == MISC && !c.subarray) {
- pr_err("Only subarrays can be"
- " updated in misc mode\n");
+ pr_err("Only subarrays can be updated in misc mode\n");
exit(2);
}
c.update = optarg;
continue;
if (strcmp(c.update, "no-bbl") == 0)
continue;
+ if (strcmp(c.update, "metadata") == 0)
+ continue;
+ if (strcmp(c.update, "revert-reshape") == 0)
+ continue;
if (strcmp(c.update, "byteorder")==0) {
if (ss) {
- pr_err("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");
if (!ss) {
- pr_err("INTERNAL ERROR"
- " cannot find 0.swap\n");
+ pr_err("INTERNAL ERROR cannot find 0.swap\n");
exit(2);
}
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. ",
- c.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");
+ 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",
+ pr_err("Can only update one aspect of superblock, both %s and %s given.\n",
c.update, optarg);
exit(2);
}
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");
+ pr_err("only 'devicesize', 'bbl' and 'no-bbl' can be updated with --re-add\n");
exit(2);
}
continue;
case O(MISC, ConfigFile):
case O(MONITOR,'c'):
case O(MONITOR,ConfigFile):
+ case O(CREATE,ConfigFile):
if (configfile) {
- pr_err("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(MANAGE,Add): /* add a drive */
devmode = 'a';
continue;
+ case O(MANAGE,AddSpare): /* add drive - never re-add */
+ devmode = 'S';
+ continue;
case O(MANAGE,ReAdd):
devmode = 'A';
continue;
* 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(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");
+ 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'))) {
pr_err("--examine/-E cannot be given with ");
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");
+ 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",
+ pr_err("only specify one udev rule filename. %s ignored.\n",
optarg);
else
udev_filename = optarg;
case O(BUILD,Bitmap):
case O(CREATE,'b'):
case O(CREATE,Bitmap): /* here we create the bitmap */
- if (strcmp(optarg, "none") == 0) {
- pr_err("'--bitmap none' only"
- " supported for --grow\n");
- exit(2);
- }
- /* FALL THROUGH */
case O(GROW,'b'):
case O(GROW,Bitmap):
if (strcmp(optarg, "internal")== 0 ||
case O(BUILD,BitmapChunk):
case O(CREATE,BitmapChunk): /* bitmap chunksize */
s.bitmap_chunk = parse_size(optarg);
- if (s.bitmap_chunk <= 0 ||
+ 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);
/* non-existent device is OK */
mdfd = open_mddev(devlist->devname, 0);
if (mdfd == -2) {
- pr_err("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) {
- pr_err("--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);
}
c.require_homehost = 0;
}
+ 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 */;
c.update, c.force);
if (!rv && c.readonly < 0)
rv = Manage_ro(devlist->devname, mdfd, c.readonly);
- if (!rv && c.runstop)
- rv = Manage_runstop(devlist->devname, mdfd, c.runstop, c.verbose, 0);
+ 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 &&
rv = Create(ss, devlist->devname,
ident.name, ident.uuid_set ? ident.uuid : NULL,
devs_found-1, devlist->next,
- &s, &c);
+ &s, &c, data_offset);
break;
case MISC:
if (devmode == 'E') {
exit(2);
}
} else
- rv = misc_list(devlist, &ident, ss, &c);
+ rv = misc_list(devlist, &ident, dump_directory, ss, &c);
break;
case MONITOR:
if (!devlist && !c.scan) {
struct mdinfo sra;
int err;
if (s.raiddisks || s.level != UnSet) {
- pr_err("cannot change array size in same operation "
- "as changing raiddisks or level.\n"
+ 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);
+ 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)
- pr_err("--array-size setting"
- " is too large.\n");
+ pr_err("--array-size setting is too large.\n");
else
- pr_err("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 && s.raiddisks == 0) {
+ if (devs_found > 1 && s.raiddisks == 0 && s.level == UnSet) {
/* must be '-a'. */
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");
+ pr_err("--add cannot be used with other geometry changes in --grow mode\n");
rv = 1;
break;
}
} 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");
+ pr_err("--bitmap changes cannot be used with other geometry changes in --grow mode\n");
rv = 1;
break;
}
mdfd, c.backup_file,
c.verbose);
else if (s.size > 0 || s.raiddisks || s.layout_str != NULL
- || s.chunk != 0 || s.level != UnSet) {
+ || s.chunk != 0 || s.level != UnSet
+ || data_offset != INVALID_SECTORS) {
rv = Grow_reshape(devlist->devname, mdfd,
- devlist->next, &c, &s);
+ devlist->next,
+ data_offset, &c, &s);
} else if (array_size == 0)
pr_err("no changes to --grow\n");
break;
RebuildMap();
}
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;
pr_err("--incremental --scan --fail not supported.\n");
break;
}
- rv = IncrementalScan(c.verbose);
+ rv = IncrementalScan(&c, NULL);
}
if (!devlist) {
if (!rebuild_map && !c.scan) {
}
break;
}
- if (devlist->next) {
- pr_err("--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,
c.verbose);
- else
- rv = Incremental(devlist->devname, &c, ss);
+ } else
+ rv = Incremental(devlist, &c, ss);
break;
case AUTODETECT:
autodetect();
int failures, successes;
if (conf_verify_devnames(array_list)) {
- pr_err("Duplicate MD device names in "
- "conf file were found.\n");
+ pr_err("Duplicate MD device names in conf file were found.\n");
return 1;
}
if (devlist == NULL) {
a->autof = c->autof;
}
if (map_lock(&map))
- pr_err("%s: failed to get "
- "exclusive lock on mapfile\n",
- __func__);
+ pr_err("failed to get exclusive lock on mapfile\n");
do {
failures = 0;
successes = 0;
if (a->devname &&
strcasecmp(a->devname, "<ignore>") == 0)
continue;
-
+
r = Assemble(ss, a->devname,
a, NULL, c);
if (r == 0) {
for (members = 0; members <= 1; members++) {
for (e=ms ; e ; e=e->next) {
- char *name;
+ 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_devnum(&map, e->devnum);
+ me = map_by_devnm(&map, e->devnm);
if (me && me->path
&& strcmp(me->path, "/unknown") != 0)
name = me->path;
- else
- name = get_md_name(e->devnum);
+ if (name == NULL ||
+ stat(name, &stb) != 0)
+ name = get_md_name(e->devnm);
if (!name) {
pr_err("cannot find device file for %s\n",
if (!progress) last = 1;
progress = 0; err = 0;
for (e=ms ; e ; e=e->next) {
- char *name = get_md_name(e->devnum);
+ char *name = get_md_name(e->devnm);
int mdfd;
if (!name) {
}
mdfd = open_mddev(name, 1);
if (mdfd >= 0) {
- if (Manage_runstop(name, mdfd, -1, verbose, !last))
+ if (Manage_stop(name, mdfd, verbose, !last))
err = 1;
else
progress = 1;
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=dv->next) {
+ for (dv=devlist ; dv; dv=(rv & 16) ? NULL : dv->next) {
int mdfd;
switch(dv->disposition) {
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;
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);
}
- mdfd = open_mddev(dv->devname, 1);
if (mdfd>=0) {
switch(dv->disposition) {
case 'R':
- rv |= Manage_runstop(dv->devname, mdfd, 1, c->verbose, 0); break;
+ c->runstop = 1;
+ rv |= Manage_run(dv->devname, mdfd, c); break;
case 'S':
- rv |= Manage_runstop(dv->devname, mdfd, -1, c->verbose, 0); break;
+ rv |= Manage_stop(dv->devname, mdfd, c->verbose, 0); break;
case 'o':
rv |= Manage_ro(dv->devname, mdfd, 1); break;
case 'w':
}
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;
+}
projects / thirdparty / mdadm.git / blobdiff