/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
return 0;
}
+#ifndef MDASSEMBLE
+
int Manage_runstop(char *devname, int fd, int runstop, int quiet)
{
/* Run or stop the array. array must already be configured
}
} else if (runstop < 0){
if (ioctl(fd, STOP_ARRAY, NULL)) {
- if (!quiet)
+ if (quiet==0)
fprintf(stderr, Name ": fail to stop array %s: %s\n",
devname, strerror(errno));
return 1;
}
+ if (quiet <= 0)
+ fprintf(stderr, Name ": stopped %s\n", devname);
}
return 0;
}
int tfd;
struct supertype *st;
void *dsuper = NULL;
+ void *osuper = NULL; /* original super */
+ int duuid[4];
+ int ouuid[4];
if (ioctl(fd, GET_ARRAY_INFO, &array)) {
fprintf(stderr, Name ": cannot get array info for %s\n",
return 1;
case 'a':
/* add the device - hot or cold */
+ st = super_by_version(array.major_version,
+ array.minor_version);
+ if (!st) {
+ fprintf(stderr, Name ": unsupport array - version %d.%d\n",
+ array.major_version, array.minor_version);
+ return 1;
+ }
+
/* Make sure it isn't in use (in 2.6 or later) */
tfd = open(dv->devname, O_RDONLY|O_EXCL);
if (tfd < 0) {
dv->devname, strerror(errno));
return 1;
}
+ if (array.not_persistent==0)
+ st->ss->load_super(st, tfd, &osuper, NULL);
+ /* will use osuper later */
close(tfd);
+
if (array.major_version == 0 &&
md_get_version(fd)%100 < 2) {
if (ioctl(fd, HOT_ADD_DISK,
return 1;
}
- /* need to find a sample superblock to copy, and
- * a spare slot to use
- */
- st = super_by_version(array.major_version,
- array.minor_version);
- if (!st) {
- fprintf(stderr, Name ": unsupport array - version %d.%d\n",
- array.major_version, array.minor_version);
- return 1;
- }
- for (j=0; j<st->max_devs; j++) {
- char *dev;
- int dfd;
- disc.number = j;
- if (ioctl(fd, GET_DISK_INFO, &disc))
- continue;
- if (disc.major==0 && disc.minor==0)
- continue;
- if ((disc.state & 4)==0) continue; /* sync */
- /* Looks like a good device to try */
- dev = map_dev(disc.major, disc.minor);
- if (!dev) continue;
- dfd = open(dev, O_RDONLY);
- if (dfd < 0) continue;
- if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
+ if (array.not_persistent == 0) {
+
+ /* need to find a sample superblock to copy, and
+ * a spare slot to use
+ */
+ for (j=0; j<st->max_devs; j++) {
+ char *dev;
+ int dfd;
+ disc.number = j;
+ if (ioctl(fd, GET_DISK_INFO, &disc))
+ continue;
+ if (disc.major==0 && disc.minor==0)
+ continue;
+ if ((disc.state & 4)==0) continue; /* sync */
+ /* Looks like a good device to try */
+ dev = map_dev(disc.major, disc.minor, 1);
+ if (!dev) continue;
+ dfd = dev_open(dev, O_RDONLY);
+ if (dfd < 0) continue;
+ if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
+ close(dfd);
+ continue;
+ }
+ remove_partitions(dfd);
close(dfd);
- continue;
+ break;
+ }
+ if (!dsuper) {
+ fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
+ return 1;
+ }
+ /* Possibly this device was recently part of the array
+ * and was temporarily removed, and is now being re-added.
+ * If so, we can simply re-add it.
+ */
+ st->ss->uuid_from_super(duuid, dsuper);
+
+ /* re-add doesn't work for version-1 superblocks
+ * before 2.6.18 :-(
+ */
+ if (array.major_version == 1 &&
+ get_linux_version() <= 2006018)
+ ;
+ else if (osuper) {
+ st->ss->uuid_from_super(ouuid, osuper);
+ if (memcmp(duuid, ouuid, sizeof(ouuid))==0) {
+ /* look close enough for now. Kernel
+ * will worry about where a bitmap
+ * based reconstruct is possible
+ */
+ struct mdinfo mdi;
+ st->ss->getinfo_super(&mdi, osuper);
+ disc.major = major(stb.st_rdev);
+ disc.minor = minor(stb.st_rdev);
+ disc.number = mdi.disk.number;
+ disc.raid_disk = mdi.disk.raid_disk;
+ disc.state = mdi.disk.state;
+ if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
+ if (verbose >= 0)
+ fprintf(stderr, Name ": re-added %s\n", dv->devname);
+ continue;
+ }
+ /* fall back on normal-add */
+ }
}
- close(dfd);
- break;
- }
- if (!dsuper) {
- fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
- return 1;
}
- for (j=0; j< st->max_devs; j++) {
+ /* in 2.6.17 and earlier, version-1 superblocks won't
+ * use the number we write, but will choose a free number.
+ * we must choose the same free number, which requires
+ * starting at 'raid_disks' and counting up
+ */
+ for (j = array.raid_disks; j< st->max_devs; j++) {
disc.number = j;
if (ioctl(fd, GET_DISK_INFO, &disc))
break;
disc.minor = minor(stb.st_rdev);
disc.number =j;
disc.state = 0;
+ if (array.not_persistent==0) {
+ if (dv->writemostly)
+ disc.state |= 1 << MD_DISK_WRITEMOSTLY;
+ st->ss->add_to_super(dsuper, &disc);
+ if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
+ return 1;
+ } else if (dv->re_add) {
+ /* this had better be raid1.
+ * As we are "--re-add"ing we must find a spare slot
+ * to fill.
+ */
+ char *used = malloc(array.raid_disks);
+ memset(used, 0, array.raid_disks);
+ for (j=0; j< st->max_devs; j++) {
+ mdu_disk_info_t disc2;
+ disc2.number = j;
+ if (ioctl(fd, GET_DISK_INFO, &disc2))
+ continue;
+ if (disc2.major==0 && disc2.minor==0)
+ continue;
+ if (disc2.state & 8) /* removed */
+ continue;
+ if (disc2.raid_disk < 0)
+ continue;
+ if (disc2.raid_disk > array.raid_disks)
+ continue;
+ used[disc2.raid_disk] = 1;
+ }
+ for (j=0 ; j<array.raid_disks; j++)
+ if (!used[j]) {
+ disc.raid_disk = j;
+ disc.state |= (1<<MD_DISK_SYNC);
+ break;
+ }
+ }
if (dv->writemostly)
- disc.state |= 1 << MD_DISK_WRITEMOSTLY;
- st->ss->add_to_super(dsuper, &disc);
- if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
- return 1;
+ disc.state |= (1 << MD_DISK_WRITEMOSTLY);
if (ioctl(fd,ADD_NEW_DISK, &disc)) {
fprintf(stderr, Name ": add new device failed for %s as %d: %s\n",
dv->devname, j, strerror(errno));
return 0;
}
+#endif
projects / thirdparty / mdadm.git / blobdiff