diff options
Diffstat (limited to 'Grow.c')
| -rw-r--r-- | Grow.c | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -1626,6 +1626,7 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, long long orig_size = get_component_size(fd)/2; long long min_csize; struct mdinfo *mdi; + int raid0_takeover = 0; if (orig_size == 0) orig_size = array.size; @@ -1674,6 +1675,28 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, "2TB per device\n"); size = min_csize; } + if (st->ss->external) { + if (sra->array.level == 0) { + rv = sysfs_set_str(sra, NULL, "level", + "raid5"); + if (!rv) { + raid0_takeover = 1; + /* get array parametes after takeover + * to chane one parameter at time only + */ + rv = ioctl(fd, GET_ARRAY_INFO, &array); + } + } + /* make sure mdmon is + * aware of the new level */ + if (!mdmon_running(st->container_dev)) + start_mdmon(st->container_dev); + ping_monitor(container); + if (mdmon_running(st->container_dev) && + st->update_tail == NULL) + st->update_tail = &st->updates; + } + array.size = size; if (array.size != size) { /* got truncated to 32bit, write to @@ -1686,12 +1709,24 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, rv = -1; } else { rv = ioctl(fd, SET_ARRAY_INFO, &array); + /* manage array size when it is managed externally */ if ((rv == 0) && st->ss->external) rv = set_array_size(st, sra, sra->text_version); } + if (raid0_takeover) { + /* do not recync non-existing parity, + * we will drop it anyway + */ + sysfs_set_str(sra, NULL, "sync_action", "idle"); + /* go back to raid0, drop parity disk + */ + sysfs_set_str(sra, NULL, "level", "raid0"); + ioctl(fd, GET_ARRAY_INFO, &array); + } + if (rv != 0) { int err = errno; |