diff options
Diffstat (limited to 'Kill.c')
-rw-r--r-- | Kill.c | 78 |
1 files changed, 78 insertions, 0 deletions
@@ -79,3 +79,81 @@ int Kill(char *dev, struct supertype *st, int force, int quiet, int noexcl) close(fd); return rv; } + +int Kill_subarray(char *dev, char *subarray, int quiet) +{ + /* Delete a subarray out of a container, the subarry must be + * inactive. The subarray string must be a subarray index + * number. + * + * 0 = successfully deleted subarray from all container members + * 1 = failed to sync metadata to one or more devices + * 2 = failed to find the container, subarray, or other resource + * issue + */ + struct supertype supertype, *st = &supertype; + int fd, rv = 2; + + memset(st, 0, sizeof(*st)); + + if (snprintf(st->subarray, sizeof(st->subarray), "%s", subarray) >= + sizeof(st->subarray)) { + if (!quiet) + fprintf(stderr, + Name ": Input overflow for subarray '%s' > %zu bytes\n", + subarray, sizeof(st->subarray) - 1); + return 2; + } + + fd = open_subarray(dev, st, quiet); + if (fd < 0) + return 2; + + if (!st->ss->kill_subarray) { + if (!quiet) + fprintf(stderr, + Name ": Operation not supported for %s metadata\n", + st->ss->name); + goto free_super; + } + + if (is_subarray_active(subarray, st->devname)) { + if (!quiet) + fprintf(stderr, + Name ": Subarray-%s still active, aborting\n", + subarray); + goto free_super; + } + + if (mdmon_running(st->devnum)) + st->update_tail = &st->updates; + + /* ok we've found our victim, drop the axe */ + rv = st->ss->kill_subarray(st); + if (rv) { + if (!quiet) + fprintf(stderr, + Name ": Failed to delete subarray-%s from %s\n", + subarray, dev); + goto free_super; + } + + /* FIXME these routines do not report success/failure */ + if (st->update_tail) + flush_metadata_updates(st); + else + st->ss->sync_metadata(st); + + if (!quiet) + fprintf(stderr, + Name ": Deleted subarray-%s from %s, UUIDs may have changed\n", + subarray, dev); + + rv = 0; + + free_super: + st->ss->free_super(st); + close(fd); + + return rv; +} |