return 0;
}
+int Manage_resize(char *devname, int fd, long long size, int raid_disks)
+{
+ mdu_array_info_t info;
+ if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
+ fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
+ devname, strerror(errno));
+ return 1;
+ }
+ if (size >= 0)
+ info.size = size;
+ if (raid_disks > 0)
+ info.raid_disks = raid_disks;
+ if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
+ fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n",
+ devname, strerror(errno));
+ return 1;
+ }
+ return 0;
+}
+
+int Manage_reconfig(char *devname, int fd, int layout)
+{
+ mdu_array_info_t info;
+ if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
+ fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
+ devname, strerror(errno));
+ return 1;
+ }
+ info.layout = layout;
+ printf("layout set to %d\n", info.layout);
+ if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
+ fprintf(stderr, Name ": Cannot set layout for %s: %s\n",
+ devname, strerror(errno));
+ return 1;
+ }
+ return 0;
+}
+
int Manage_subdevs(char *devname, int fd,
mddev_dev_t devlist)
{
mddev_dev_t dv;
struct stat stb;
int j;
- int save_errno;
- static char buf[4096];
+ int tfd;
+ struct supertype *st;
+ void *dsuper = NULL;
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 */
- if (ioctl(fd, HOT_ADD_DISK, (unsigned long)stb.st_rdev)==0) {
- fprintf(stderr, Name ": hot added %s\n",
- dv->devname);
- continue;
+ /* Make sure it isn' in use (in 2.6 or later) */
+ tfd = open(dv->devname, O_RDONLY|O_EXCL);
+ if (tfd < 0) {
+ fprintf(stderr, Name ": Cannot open %s: %s\n",
+ dv->devname, strerror(errno));
+ return 1;
}
- save_errno = errno;
- if (read(fd, buf, sizeof(buf)) > 0) {
- /* array is active, so don't try to add.
- * i.e. something is wrong
- */
+ close(tfd);
+#if 0
+ if (array.major_version == 0) {
+#else
+ if (md_get_version(fd)%100 < 2) {
+#endif
+ if (ioctl(fd, HOT_ADD_DISK,
+ (unsigned long)stb.st_rdev)==0) {
+ fprintf(stderr, Name ": hot added %s\n",
+ dv->devname);
+ continue;
+ }
+
fprintf(stderr, Name ": hot add failed for %s: %s\n",
- dv->devname, strerror(save_errno));
+ dv->devname, strerror(errno));
return 1;
}
- /* try ADD_NEW_DISK.
- * we might be creating, we might be assembling,
- * it is hard to tell.
- * set up number/raid_disk/state just
- * in case
+
+ /* 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<array.active_disks+array.spare_disks+ array.failed_disks; 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)) {
+ close(dfd);
+ continue;
+ }
+ close(dfd);
+ break;
+ }
+ if (!dsuper) {
+ fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n");
+ return 1;
+ }
for (j=0; j<array.nr_disks; j++) {
disc.number = j;
if (ioctl(fd, GET_DISK_INFO, &disc))
if (disc.state & 8) /* removed */
break;
}
+ disc.major = major(stb.st_rdev);
+ disc.minor = minor(stb.st_rdev);
disc.number =j;
- disc.raid_disk = j;
disc.state = 0;
- disc.major = MAJOR(stb.st_rdev);
- disc.minor = MINOR(stb.st_rdev);
+ if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
+ return 1;
if (ioctl(fd,ADD_NEW_DISK, &disc)) {
fprintf(stderr, Name ": add new device failed for %s: %s\n",
dv->devname, strerror(errno));