/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#include "mdadm.h"
return 0;
}
+static int is_member_busy(char *metadata_version)
+{
+ /* check if the given member array is active */
+ struct mdstat_ent *mdstat = mdstat_read(1, 0);
+ struct mdstat_ent *ent;
+ int busy = 0;
+
+ for (ent = mdstat; ent; ent = ent->next) {
+ if (ent->metadata_version == NULL)
+ continue;
+ if (strncmp(ent->metadata_version, "external:", 9) != 0)
+ continue;
+ if (!is_subarray(&ent->metadata_version[9]))
+ continue;
+ /* Skip first char - it can be '/' or '-' */
+ if (strcmp(&ent->metadata_version[10], metadata_version+1) == 0) {
+ busy = 1;
+ break;
+ }
+ }
+ free_mdstat(mdstat);
+
+ return busy;
+}
+
int Assemble(struct supertype *st, char *mddev,
mddev_ident_t ident,
mddev_dev_t devlist, char *backup_file,
int readonly, int runstop,
- char *update, char *homehost,
+ char *update, char *homehost, int require_homehost,
int verbose, int force)
{
/*
*/
int mdfd;
int clean;
- int auto_assem = (mddev == NULL);
+ int auto_assem = (mddev == NULL && !ident->uuid_set &&
+ ident->super_minor == UnSet && ident->name[0] == 0
+ && (ident->container == NULL || ident->member == NULL));
int old_linux = 0;
int vers = vers; /* Keep gcc quite - it really is initialised */
struct {
struct mdinfo i;
} *devices;
int *best = NULL; /* indexed by raid_disk */
- unsigned int bestcnt = 0;
+ int bestcnt = 0;
int devcnt = 0;
- unsigned int okcnt, sparecnt;
+ unsigned int okcnt, sparecnt, rebuilding_cnt;
unsigned int req_cnt;
- unsigned int i;
+ int i;
int most_recent = 0;
int chosen_drive;
int change = 0;
int inargv = 0;
+ int report_missmatch;
int bitmap_done;
int start_partial_ok = (runstop >= 0) &&
(force || devlist==NULL || auto_assem);
mddev_dev_t tmpdev;
struct mdinfo info;
struct mdinfo *content = NULL;
- mdu_array_info_t tmp_inf;
char *avail;
int nextspare = 0;
char *name = NULL;
if (!devlist &&
ident->uuid_set == 0 &&
- ident->super_minor < 0 &&
+ (ident->super_minor < 0 || ident->super_minor == UnSet) &&
+ ident->name[0] == 0 &&
+ (ident->container == NULL || ident->member == NULL) &&
ident->devices == NULL) {
fprintf(stderr, Name ": No identity information available for %s - cannot assemble.\n",
mddev ? mddev : "further assembly");
else if (mddev)
inargv = 1;
+ report_missmatch = ((inargv && verbose >= 0) || verbose > 0);
try_again:
/* We come back here when doing auto-assembly and attempting some
* set of devices failed. Those are now marked as ->used==2 and
if (ident->devices &&
!match_oneof(ident->devices, devname)) {
- if ((inargv && verbose>=0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s is not one of %s\n", devname, ident->devices);
continue;
}
dfd = dev_open(devname, O_RDONLY|O_EXCL);
if (dfd < 0) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": cannot open device %s: %s\n",
devname, strerror(errno));
tmpdev->used = 2;
devname);
tmpdev->used = 2;
} else if (!tst && (tst = guess_super(dfd)) == NULL) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": no recogniseable superblock on %s\n",
devname);
tmpdev->used = 2;
} else if (tst->ss->load_super(tst,dfd, NULL)) {
- if ((inargv && verbose >= 0) || verbose > 0)
- fprintf( stderr, Name ": no RAID superblock on %s\n",
- devname);
+ if (report_missmatch)
+ fprintf(stderr, Name ": no RAID superblock on %s\n",
+ devname);
+ } else if (tst->ss->compare_super == NULL) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": Cannot assemble %s metadata on %s\n",
+ tst->ss->name, devname);
+ tst->ss->free_super(tst);
+ tmpdev->used = 2;
+ } else if (auto_assem && st == NULL &&
+ !conf_test_metadata(tst->ss->name,
+ tst->ss->match_home(tst, homehost) == 1)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": %s has metadata type %s for which "
+ "auto-assembly is disabled\n",
+ devname, tst->ss->name);
+ tst->ss->free_super(tst);
+ tmpdev->used = 2;
} else {
content = &info;
memset(content, 0, sizeof(*content));
}
if (dfd >= 0) close(dfd);
+ if (tst && tst->sb && tst->ss->container_content
+ && tst->loaded_container) {
+ /* tmpdev is a container. We need to be either
+ * looking for a member, or auto-assembling
+ */
+ if (st) {
+ /* already found some components, this cannot
+ * be another one.
+ */
+ if (report_missmatch)
+ fprintf(stderr, Name ": %s is a container, but we are looking for components\n",
+ devname);
+ goto loop;
+ }
+
+ if (ident->container) {
+ if (ident->container[0] == '/' &&
+ !same_dev(ident->container, devname)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": %s is not the container required (%s)\n",
+ devname, ident->container);
+ goto loop;
+ }
+ if (ident->container[0] != '/') {
+ /* we have a uuid */
+ int uuid[4];
+ if (!parse_uuid(ident->container, uuid) ||
+ !same_uuid(content->uuid, uuid, tst->ss->swapuuid)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": %s has wrong UUID to be required container\n",
+ devname);
+ goto loop;
+ }
+ }
+ }
+ /* It is worth looking inside this container.
+ */
+ if (verbose > 0)
+ fprintf(stderr, Name ": looking in container %s\n",
+ devname);
+ next_member:
+ if (tmpdev->content)
+ content = tmpdev->content;
+ else
+ content = tst->ss->container_content(tst);
+ if (!content)
+ goto loop; /* empty container */
+
+ tmpdev->content = content->next;
+ if (tmpdev->content == NULL)
+ tmpdev->used = 2;
+
+ } else if (ident->container || ident->member) {
+ /* No chance of this matching if we don't have
+ * a container */
+ if (report_missmatch)
+ fprintf(stderr, Name "%s is not a container, and one is required.\n",
+ devname);
+ goto loop;
+ }
+
if (ident->uuid_set && (!update || strcmp(update, "uuid")!= 0) &&
(!tst || !tst->sb ||
same_uuid(content->uuid, ident->uuid, tst->ss->swapuuid)==0)) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s has wrong uuid.\n",
devname);
goto loop;
if (ident->name[0] && (!update || strcmp(update, "name")!= 0) &&
(!tst || !tst->sb ||
name_matches(content->name, ident->name, homehost)==0)) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s has wrong name.\n",
devname);
goto loop;
if (ident->super_minor != UnSet &&
(!tst || !tst->sb ||
ident->super_minor != content->array.md_minor)) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s has wrong super-minor.\n",
devname);
goto loop;
if (ident->level != UnSet &&
(!tst || !tst->sb ||
ident->level != content->array.level)) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s has wrong raid level.\n",
devname);
goto loop;
if (ident->raid_disks != UnSet &&
(!tst || !tst->sb ||
ident->raid_disks!= content->array.raid_disks)) {
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s requires wrong number of drives.\n",
devname);
goto loop;
return 1;
}
+ if (tst && tst->sb && tst->ss->container_content
+ && tst->loaded_container) {
+ /* we have the one container we need, don't keep
+ * looking. If the chosen member is active, skip.
+ */
+ if (is_member_busy(content->text_version)) {
+ if (report_missmatch)
+ fprintf(stderr, Name ": member %s in %s is already assembled\n",
+ content->text_version,
+ devname);
+ skip:
+ if (tmpdev->content)
+ goto next_member;
+ tst->ss->free_super(tst);
+ tst = NULL;
+ content = NULL;
+ if (auto_assem)
+ goto loop;
+ return 1;
+ }
+ if (ident->member && ident->member[0]) {
+ char *s = strchr(content->text_version+1, '/');
+ if (s == NULL) {
+ fprintf(stderr, Name ": badly formatted version: %s\n",
+ content->text_version);
+ goto skip;
+ }
+ if (strcmp(ident->member, s+1) != 0) {
+ if (report_missmatch)
+ fprintf(stderr,
+ Name ": skipping wrong member %s\n",
+ content->text_version);
+ goto skip;
+ }
+ }
+ st = tst; tst = NULL;
+ if (!auto_assem && inargv && tmpdev->next != NULL) {
+ fprintf(stderr, Name ": %s is a container, but is not "
+ "only device given: confused and aborting\n",
+ devname);
+ st->ss->free_super(st);
+ return 1;
+ }
+ if (verbose > 0)
+ fprintf(stderr, Name ": found match on member %s in %s\n",
+ content->text_version, devname);
+ break;
+ }
if (st == NULL)
st = dup_super(tst);
if (st->minor_version == -1)
(first == 1 || last == 1)) {
/* We can do something */
if (first) {/* just ignore this one */
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s misses out due to wrong homehost\n",
devname);
goto loop;
} else { /* reject all those sofar */
mddev_dev_t td;
- if ((inargv && verbose >= 0) || verbose > 0)
+ if (report_missmatch)
fprintf(stderr, Name ": %s overrides previous devices due to good homehost\n",
devname);
for (td=devlist; td != tmpdev; td=td->next)
tmpdev->used = 1;
loop:
+ if (tmpdev->content)
+ goto next_member;
if (tst)
tst->ss->free_super(tst);
}
if (!st || !st->sb || !content)
return 2;
- /* Now need to open array the device. Use create_mddev */
+ /* Now need to open the array device. Use create_mddev */
if (content == &info)
st->ss->getinfo_super(st, content);
trustworthy = FOREIGN;
- switch (st->ss->match_home(st, homehost)) {
- case 0:
- trustworthy = FOREIGN;
- name = content->name;
- break;
+ name = content->name;
+ switch (st->ss->match_home(st, homehost)
+ ?: st->ss->match_home(st, "any")) {
case 1:
trustworthy = LOCAL;
name = strchr(content->name, ':');
else
name = content->name;
break;
- case -1:
- trustworthy = FOREIGN;
- break;
}
- if (!auto_assem && trustworthy == FOREIGN)
- /* If the array is listed in mdadm or on
+ if (!auto_assem)
+ /* If the array is listed in mdadm.conf or on
* command line, then we trust the name
* even if the array doesn't look local
*/
trustworthy = LOCAL;
- if (content->name[0] == 0 &&
+ if (name[0] == 0 &&
content->array.level == LEVEL_CONTAINER) {
name = content->text_version;
trustworthy = METADATA;
}
+
+ if (name[0] && trustworthy != LOCAL &&
+ ! require_homehost &&
+ conf_name_is_free(name))
+ trustworthy = LOCAL;
+
+ if (trustworthy == LOCAL &&
+ strchr(name, ':'))
+ /* Ignore 'host:' prefix of name */
+ name = strchr(name, ':')+1;
+
mdfd = create_mddev(mddev, name, ident->autof, trustworthy,
chosen_name);
if (mdfd < 0) {
close(mdfd);
return 1;
}
- if (ioctl(mdfd, GET_ARRAY_INFO, &tmp_inf)==0) {
+ if (mddev_busy(fd2devnum(mdfd))) {
fprintf(stderr, Name ": %s already active, cannot restart it!\n",
mddev);
for (tmpdev = devlist ;
}
ioctl(mdfd, STOP_ARRAY, NULL); /* just incase it was started but has no content */
+#ifndef MDASSEMBLE
+ if (content != &info) {
+ /* This is a member of a container. Try starting the array. */
+ return assemble_container_content(st, mdfd, content, runstop,
+ chosen_name, verbose);
+ }
+#endif
/* Ok, no bad inconsistancy, we can try updating etc */
bitmap_done = 0;
+ content->update_private = NULL;
for (tmpdev = devlist; tmpdev; tmpdev=tmpdev->next) if (tmpdev->used == 1) {
char *devname = tmpdev->devname;
struct stat stb;
remove_partitions(dfd);
tst = dup_super(st);
- tst->ss->load_super(tst, dfd, NULL);
+ if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) {
+ fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n",
+ devname);
+ if (dfd >= 0)
+ close(dfd);
+ close(mdfd);
+ return 1;
+ }
tst->ss->getinfo_super(tst, content);
memcpy(content->uuid, ident->uuid, 16);
remove_partitions(dfd);
- tst->ss->load_super(tst, dfd, NULL);
+ if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) {
+ fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n",
+ devname);
+ if (dfd >= 0)
+ close(dfd);
+ close(mdfd);
+ return 1;
+ }
tst->ss->getinfo_super(tst, content);
tst->ss->free_super(tst);
close(dfd);
> devices[most_recent].i.events)
most_recent = devcnt;
}
- if (content->array.level == -4)
+ if (content->array.level == LEVEL_MULTIPATH)
/* with multipath, the raid_disk from the superblock is meaningless */
i = devcnt;
else
}
if (i < 10000) {
if (i >= bestcnt) {
- unsigned int newbestcnt = i+10;
+ int newbestcnt = i+10;
int *newbest = malloc(sizeof(int)*newbestcnt);
- unsigned int c;
+ int c;
for (c=0; c < newbestcnt; c++)
if (c < bestcnt)
newbest[c] = best[c];
}
devcnt++;
}
+ free(content->update_private);
+ content->update_private = NULL;
if (devcnt == 0) {
fprintf(stderr, Name ": no devices found for %s\n",
memset(avail, 0, content->array.raid_disks);
okcnt = 0;
sparecnt=0;
- for (i=0; i< bestcnt ;i++) {
+ rebuilding_cnt=0;
+ for (i=0; i< bestcnt; i++) {
int j = best[i];
int event_margin = 1; /* always allow a difference of '1'
* like the kernel does
/* note: we ignore error flags in multipath arrays
* as they don't make sense
*/
- if (content->array.level != -4)
- if (!(devices[j].i.disk.state & (1<<MD_DISK_SYNC))) {
+ if (content->array.level != LEVEL_MULTIPATH)
+ if (!(devices[j].i.disk.state & (1<<MD_DISK_ACTIVE))) {
if (!(devices[j].i.disk.state
& (1<<MD_DISK_FAULTY)))
sparecnt++;
devices[most_recent].i.events) {
devices[j].uptodate = 1;
if (i < content->array.raid_disks) {
- okcnt++;
- avail[i]=1;
+ if (devices[j].i.recovery_start == MaxSector) {
+ okcnt++;
+ avail[i]=1;
+ } else
+ rebuilding_cnt++;
} else
sparecnt++;
}
*/
int fd;
struct supertype *tst;
- long long current_events;
+ unsigned long long current_events;
chosen_drive = -1;
- for (i=0; i<content->array.raid_disks && i < bestcnt; i++) {
+ for (i = 0; i < content->array.raid_disks && i < bestcnt; i++) {
int j = best[i];
if (j>=0 &&
!devices[j].uptodate &&
- devices[j].i.events > 0 &&
+ devices[j].i.recovery_start == MaxSector &&
(chosen_drive < 0 ||
devices[j].i.events
> devices[chosen_drive].i.events))
/* If there are any other drives of the same vintage,
* add them in as well. We can't lose and we might gain
*/
- for (i=0; i<content->array.raid_disks && i < bestcnt ; i++) {
+ for (i = 0; i < content->array.raid_disks && i < bestcnt ; i++) {
int j = best[i];
if (j >= 0 &&
!devices[j].uptodate &&
- devices[j].i.events > 0 &&
devices[j].i.events == current_events) {
chosen_drive = j;
goto add_another;
continue;
devices[j].i.disk.state = desired_state;
+ if (!(devices[j].i.array.state & 1))
+ clean = 0;
if (st->ss->update_super(st, &devices[j].i, "assemble", NULL,
verbose, 0, NULL)) {
if (content->reshape_active) {
int err = 0;
int *fdlist = malloc(sizeof(int)* bestcnt);
+ if (verbose > 0)
+ fprintf(stderr, Name ":%s has an active reshape - checking "
+ "if critical section needs to be restored\n",
+ chosen_name);
for (i=0; i<bestcnt; i++) {
int j = best[i];
if (j >= 0) {
fdlist[i] = -1;
}
if (!err)
- err = Grow_restart(st, content, fdlist, bestcnt, backup_file);
+ err = Grow_restart(st, content, fdlist, bestcnt, backup_file, verbose > 0);
while (i>0) {
i--;
if (fdlist[i]>=0) close(fdlist[i]);
}
if (err) {
fprintf(stderr, Name ": Failed to restore critical section for reshape, sorry.\n");
+ if (backup_file == NULL)
+ fprintf(stderr," Possibly you needed to specify the --backup-file\n");
close(mdfd);
return err;
}
if (rv) {
fprintf(stderr, Name ": failed to set array info for %s: %s\n",
mddev, strerror(errno));
+ ioctl(mdfd, STOP_ARRAY, NULL);
close(mdfd);
return 1;
}
if (ident->bitmap_fd >= 0) {
if (ioctl(mdfd, SET_BITMAP_FILE, ident->bitmap_fd) != 0) {
fprintf(stderr, Name ": SET_BITMAP_FILE failed.\n");
+ ioctl(mdfd, STOP_ARRAY, NULL);
close(mdfd);
return 1;
}
if (bmfd < 0) {
fprintf(stderr, Name ": Could not open bitmap file %s\n",
ident->bitmap_file);
+ ioctl(mdfd, STOP_ARRAY, NULL);
close(mdfd);
return 1;
}
if (ioctl(mdfd, SET_BITMAP_FILE, bmfd) != 0) {
fprintf(stderr, Name ": Failed to set bitmapfile for %s\n", mddev);
close(bmfd);
+ ioctl(mdfd, STOP_ARRAY, NULL);
close(mdfd);
return 1;
}
fprintf(stderr, Name ": Container %s has been "
"assembled with %d drive%s",
mddev, okcnt+sparecnt, okcnt+sparecnt==1?"":"s");
- if (okcnt < content->array.raid_disks)
+ if (okcnt < (unsigned)content->array.raid_disks)
fprintf(stderr, " (out of %d)",
content->array.raid_disks);
fprintf(stderr, "\n");
}
sysfs_uevent(content, "change");
+ wait_for(chosen_name, mdfd);
close(mdfd);
return 0;
}
(runstop <= 0 &&
( enough(content->array.level, content->array.raid_disks,
content->array.layout, clean, avail, okcnt) &&
- (okcnt >= req_cnt || start_partial_ok)
+ (okcnt + rebuilding_cnt >= req_cnt || start_partial_ok)
))) {
- if (ioctl(mdfd, RUN_ARRAY, NULL)==0) {
+ /* This array is good-to-go.
+ * If a reshape is in progress then we might need to
+ * continue monitoring it. In that case we start
+ * it read-only and let the grow code make it writable.
+ */
+ int rv;
+#ifndef MDASSEMBLE
+ if (content->reshape_active &&
+ content->delta_disks <= 0)
+ rv = Grow_continue(mdfd, st, content, backup_file);
+ else
+#endif
+ rv = ioctl(mdfd, RUN_ARRAY, NULL);
+ if (rv == 0) {
if (verbose >= 0) {
fprintf(stderr, Name ": %s has been started with %d drive%s",
mddev, okcnt, okcnt==1?"":"s");
- if (okcnt < content->array.raid_disks)
+ if (okcnt < (unsigned)content->array.raid_disks)
fprintf(stderr, " (out of %d)", content->array.raid_disks);
+ if (rebuilding_cnt)
+ fprintf(stderr, "%s %d rebuilding", sparecnt?",":" and", rebuilding_cnt);
if (sparecnt)
fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s");
fprintf(stderr, ".\n");
}
+ if (content->reshape_active &&
+ content->array.level >= 4 &&
+ content->array.level <= 6) {
+ /* might need to increase the size
+ * of the stripe cache - default is 256
+ */
+ if (256 < 4 * (content->array.chunk_size/4096)) {
+ struct mdinfo *sra = sysfs_read(mdfd, 0, 0);
+ if (sra)
+ sysfs_set_num(sra, NULL,
+ "stripe_cache_size",
+ (4 * content->array.chunk_size / 4096) + 1);
+ }
+ }
+ if (okcnt < (unsigned)content->array.raid_disks) {
+ /* If any devices did not get added
+ * because the kernel rejected them based
+ * on event count, try adding them
+ * again providing the action policy is
+ * 're-add' or greater. The bitmap
+ * might allow them to be included, or
+ * they will become spares.
+ */
+ for (i = 0; i <= bestcnt; i++) {
+ int j = best[i];
+ if (j >= 0 && !devices[j].uptodate) {
+ if (!disk_action_allows(&devices[j].i, st->ss->name, act_re_add))
+ continue;
+ rv = add_disk(mdfd, st, content,
+ &devices[j].i);
+ if (rv == 0 && verbose >= 0)
+ fprintf(stderr,
+ Name ": %s has been re-added.\n",
+ devices[j].devname);
+ }
+ }
+ }
+ wait_for(mddev, mdfd);
close(mdfd);
if (auto_assem) {
int usecs = 1;
if (runstop == -1) {
fprintf(stderr, Name ": %s assembled from %d drive%s",
mddev, okcnt, okcnt==1?"":"s");
- if (okcnt != content->array.raid_disks)
+ if (okcnt != (unsigned)content->array.raid_disks)
fprintf(stderr, " (out of %d)", content->array.raid_disks);
fprintf(stderr, ", but not started.\n");
close(mdfd);
}
if (verbose >= -1) {
fprintf(stderr, Name ": %s assembled from %d drive%s", mddev, okcnt, okcnt==1?"":"s");
+ if (rebuilding_cnt)
+ fprintf(stderr, "%s %d rebuilding", sparecnt?", ":" and ", rebuilding_cnt);
if (sparecnt)
fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s");
if (!enough(content->array.level, content->array.raid_disks,
"array while not clean - consider "
"--force.\n");
else {
- if (req_cnt == content->array.raid_disks)
+ if (req_cnt == (unsigned)content->array.raid_disks)
fprintf(stderr, " - need all %d to start it", req_cnt);
else
fprintf(stderr, " - need %d of %d to start", req_cnt, content->array.raid_disks);
}
if (auto_assem)
ioctl(mdfd, STOP_ARRAY, NULL);
+ close(mdfd);
return 1;
} else {
/* The "chosen_drive" is a good choice, and if necessary, the superblock has
close(mdfd);
return 0;
}
+
+#ifndef MDASSEMBLE
+int assemble_container_content(struct supertype *st, int mdfd,
+ struct mdinfo *content, int runstop,
+ char *chosen_name, int verbose)
+{
+ struct mdinfo *dev, *sra;
+ int working = 0, preexist = 0;
+ struct map_ent *map = NULL;
+
+ sysfs_init(content, mdfd, 0);
+
+ sra = sysfs_read(mdfd, 0, GET_VERSION);
+ if (sra == NULL || strcmp(sra->text_version, content->text_version) != 0)
+ if (sysfs_set_array(content, md_get_version(mdfd)) != 0) {
+ close(mdfd);
+ return 1;
+ }
+ if (sra)
+ sysfs_free(sra);
+
+ for (dev = content->devs; dev; dev = dev->next)
+ if (sysfs_add_disk(content, dev, 1) == 0)
+ working++;
+ else if (errno == EEXIST)
+ preexist++;
+ if (working == 0) {
+ close(mdfd);
+ return 1;/* Nothing new, don't try to start */
+ }
+
+ map_update(&map, fd2devnum(mdfd),
+ content->text_version,
+ content->uuid, chosen_name);
+
+ if (runstop > 0 ||
+ (working + preexist) >= content->array.working_disks) {
+ int err;
+
+ switch(content->array.level) {
+ case LEVEL_LINEAR:
+ case LEVEL_MULTIPATH:
+ case 0:
+ err = sysfs_set_str(content, NULL, "array_state",
+ "active");
+ break;
+ default:
+ err = sysfs_set_str(content, NULL, "array_state",
+ "readonly");
+ /* start mdmon if needed. */
+ if (!err) {
+ if (!mdmon_running(st->container_dev))
+ start_mdmon(st->container_dev);
+ ping_monitor(devnum2devname(st->container_dev));
+ }
+ break;
+ }
+ if (!err)
+ sysfs_set_safemode(content, content->safe_mode_delay);
+ if (verbose >= 0) {
+ if (err)
+ fprintf(stderr, Name
+ ": array %s now has %d devices",
+ chosen_name, working + preexist);
+ else
+ fprintf(stderr, Name
+ ": Started %s with %d devices",
+ chosen_name, working + preexist);
+ if (preexist)
+ fprintf(stderr, " (%d new)", working);
+ fprintf(stderr, "\n");
+ }
+ if (!err)
+ wait_for(chosen_name, mdfd);
+ close(mdfd);
+ return 0;
+ /* FIXME should have an O_EXCL and wait for read-auto */
+ } else {
+ if (verbose >= 0)
+ fprintf(stderr, Name
+ ": %s assembled with %d devices but "
+ "not started\n",
+ chosen_name, working);
+ close(mdfd);
+ return 1;
+ }
+}
+#endif
+
projects / thirdparty / mdadm.git / blobdiff