continue;
}
- res = btrfs_prepare_device(devfd, argv[i], 1, &dev_block_count,
- 0, discard);
+ res = btrfs_prepare_device(devfd, argv[i], &dev_block_count, 0,
+ PREP_DEVICE_ZERO_END | PREP_DEVICE_VERBOSE |
+ (discard ? PREP_DEVICE_DISCARD : 0));
close(devfd);
if (res) {
ret++;
for(i = optind; i < argc - 1; i++) {
struct btrfs_ioctl_vol_args arg;
+ struct btrfs_ioctl_vol_args_v2 argv2 = {0};
+ int is_devid = 0;
int res;
- if (is_block_device(argv[i]) != 1 && strcmp(argv[i], "missing")) {
+ if (string_is_numerical(argv[i])) {
+ argv2.devid = arg_strtou64(argv[i]);
+ argv2.flags = BTRFS_DEVICE_SPEC_BY_ID;
+ is_devid = 1;
+ } else if (is_block_device(argv[i]) == 1 ||
+ strcmp(argv[i], "missing") == 0) {
+ strncpy_null(argv2.name, argv[i]);
+ } else {
error("not a block device: %s", argv[i]);
ret++;
continue;
}
- memset(&arg, 0, sizeof(arg));
- strncpy_null(arg.name, argv[i]);
+
/*
* Positive values are from BTRFS_ERROR_DEV_*,
* otherwise it's a generic error, one of errnos
*/
- res = ioctl(fdmnt, BTRFS_IOC_RM_DEV, &arg);
+ res = ioctl(fdmnt, BTRFS_IOC_RM_DEV_V2, &argv2);
+
+ /*
+ * If BTRFS_IOC_RM_DEV_V2 is not supported we get ENOTTY and if
+ * argv2.flags includes a flag which kernel doesn't understand then
+ * we shall get EOPNOTSUPP
+ */
+ if (res < 0 && (errno == ENOTTY || errno == EOPNOTSUPP)) {
+ if (is_devid) {
+ error("device delete by id failed: %s",
+ strerror(errno));
+ ret++;
+ continue;
+ }
+ memset(&arg, 0, sizeof(arg));
+ strncpy_null(arg.name, argv[i]);
+ res = ioctl(fdmnt, BTRFS_IOC_RM_DEV, &arg);
+ }
+
if (res) {
const char *msg;
msg = btrfs_err_str(res);
else
msg = strerror(errno);
- error("error removing device '%s': %s",
- argv[i], msg);
+ if (is_devid) {
+ error("error removing devid %llu: %s",
+ (unsigned long long)argv2.devid, msg);
+ } else {
+ error("error removing device '%s': %s",
+ argv[i], msg);
+ }
ret++;
}
}
}
static const char * const cmd_device_remove_usage[] = {
- "btrfs device remove <device> [<device>...] <path>",
+ "btrfs device remove <device>|<devid> [<device>|<devid>...] <path>",
"Remove a device from a filesystem",
NULL
};
}
static const char * const cmd_device_delete_usage[] = {
- "btrfs device delete <device> [<device>...] <path>",
+ "btrfs device delete <device>|<devid> [<device>|<devid>...] <path>",
"Remove a device from a filesystem",
NULL
};
static int cmd_device_scan(int argc, char **argv)
{
int i;
- int devstart = 1;
+ int devstart;
int all = 0;
int ret = 0;
- optind = 1;
while (1) {
int c;
static const struct option long_options[] = {
usage(cmd_device_scan_usage);
}
}
+ devstart = optind;
- if (all && check_argc_max(argc, 2))
+ if (all && check_argc_max(argc - optind, 1))
usage(cmd_device_scan_usage);
- if (all || argc == 1) {
+ if (all || argc - optind == 0) {
printf("Scanning for Btrfs filesystems\n");
ret = btrfs_scan_lblkid();
error_on(ret, "error %d while scanning", ret);
ret = btrfs_register_all_devices();
- error_on(ret, "error %d while registering devices", ret);
+ error_on(ret, "there are %d errors while registering devices", ret);
goto out;
}
clean_args_no_options(argc, argv, cmd_device_ready_usage);
- if (check_argc_min(argc - optind, 1))
+ if (check_argc_exact(argc - optind, 1))
usage(cmd_device_ready_usage);
fd = open("/dev/btrfs-control", O_RDWR);
__u64 flags = 0;
DIR *dirstream = NULL;
- optind = 1;
while ((c = getopt(argc, argv, "z")) != -1) {
switch (c) {
case 'z':
}
}
- argc = argc - optind;
- if (check_argc_exact(argc, 1))
+ if (check_argc_exact(argc - optind, 1))
usage(cmd_device_stats_usage);
dev_path = argv[optind];
canonical_path = canonicalize_path((char *)path);
+ /* No path when device is missing. */
+ if (!canonical_path) {
+ canonical_path = malloc(32);
+ if (!canonical_path) {
+ error("not enough memory for path buffer");
+ goto out;
+ }
+ snprintf(canonical_path, 32,
+ "devid:%llu", args.devid);
+ }
+
if (args.nr_items >= BTRFS_DEV_STAT_WRITE_ERRS + 1)
printf("[%s].write_io_errs %llu\n",
canonical_path,