diff options
| -rw-r--r-- | cmd_device.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/cmd_device.c b/cmd_device.c index 959129a1..c311324a 100644 --- a/cmd_device.c +++ b/cmd_device.c @@ -326,6 +326,7 @@ static void device_set_state_usage(void) "\n" "Options:\n" " -f, --force Force, if data redundancy will be degraded\n" + " -o, --offline Set state of an offline device\n" " -h, --help display this help and exit\n" "Report bugs to <linux-bcache@vger.kernel.org>"); exit(EXIT_SUCCESS); @@ -335,16 +336,21 @@ int cmd_device_set_state(int argc, char *argv[]) { static const struct option longopts[] = { { "force", 0, NULL, 'f' }, + { "offline", 0, NULL, 'o' }, { "help", 0, NULL, 'h' }, { NULL } }; int opt, flags = 0; + bool offline = false; - while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1) + while ((opt = getopt_long(argc, argv, "foh", longopts, NULL)) != -1) switch (opt) { case 'f': flags |= BCH_FORCE_IF_DEGRADED; break; + case 'o': + offline = true; + break; case 'h': device_set_state_usage(); } @@ -361,10 +367,31 @@ int cmd_device_set_state(int argc, char *argv[]) unsigned new_state = read_string_list_or_die(new_state_str, bch2_dev_state, "device state"); - unsigned dev_idx; - struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx); + if (!offline) { + unsigned dev_idx; + struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx); + + bchu_disk_set_state(fs, dev_idx, new_state, flags); + + bcache_fs_close(fs); + } else { + struct bch_opts opts = bch2_opts_empty(); + struct bch_sb_handle sb = { NULL }; + + int ret = bch2_read_super(dev_path, &opts, &sb); + if (ret) + die("error opening %s: %s", dev_path, strerror(-ret)); + + struct bch_member *m = bch2_sb_get_members(sb.sb)->members + sb.sb->dev_idx; + + SET_BCH_MEMBER_STATE(m, new_state); + + le64_add_cpu(&sb.sb->seq, 1); + + bch2_super_write(sb.bdev->bd_fd, sb.sb); + bch2_free_super(&sb); + } - bchu_disk_set_state(fs, dev_idx, new_state, flags); return 0; } |