10 #include <sys/ioctl.h>
12 #include <sys/types.h>
15 #include "libbcachefs/bcachefs.h"
16 #include "libbcachefs/bcachefs_ioctl.h"
17 #include "libbcachefs/journal.h"
18 #include "libbcachefs/super-io.h"
20 #include "libbcachefs.h"
21 #include "libbcachefs/opts.h"
22 #include "tools-util.h"
24 static void device_add_usage(void)
26 puts("bcachefs device add - add a device to an existing filesystem\n"
27 "Usage: bcachefs device add [OPTION]... filesystem device\n"
30 " -S, --fs_size=size Size of filesystem on device\n"
31 " -B, --bucket=size Bucket size\n"
32 " -D, --discard Enable discards\n"
33 " -g, --group=group Disk group\n"
34 " -f, --force Use device even if it appears to already be formatted\n"
35 " -h, --help Display this help and exit\n"
37 "Report bugs to <linux-bcache@vger.kernel.org>");
40 int cmd_device_add(int argc, char *argv[])
42 static const struct option longopts[] = {
43 { "fs_size", required_argument, NULL, 'S' },
44 { "bucket", required_argument, NULL, 'B' },
45 { "discard", no_argument, NULL, 'D' },
46 { "group", required_argument, NULL, 'g' },
47 { "force", no_argument, NULL, 'f' },
48 { "help", no_argument, NULL, 'h' },
51 struct format_opts format_opts = format_opts_default();
52 struct dev_opts dev_opts = dev_opts_default();
56 while ((opt = getopt_long(argc, argv, "t:fh",
57 longopts, NULL)) != -1)
60 if (bch2_strtoull_h(optarg, &dev_opts.size))
61 die("invalid filesystem size");
66 dev_opts.bucket_size =
67 hatoi_validate(optarg, "bucket size");
70 dev_opts.discard = true;
73 dev_opts.group = strdup(optarg);
84 char *fs_path = arg_pop();
86 die("Please supply a filesystem");
88 char *dev_path = arg_pop();
90 die("Please supply a device");
93 die("too many arguments");
95 struct bchfs_handle fs = bcache_fs_open(fs_path);
97 dev_opts.path = dev_path;
98 dev_opts.fd = open_for_format(dev_opts.path, force);
100 struct bch_opt_strs fs_opt_strs;
101 memset(&fs_opt_strs, 0, sizeof(fs_opt_strs));
103 struct bch_opts fs_opts = bch2_parse_opts(fs_opt_strs);
105 opt_set(fs_opts, block_size,
106 read_file_u64(fs.sysfs_fd, "block_size") >> 9);
107 opt_set(fs_opts, btree_node_size,
108 read_file_u64(fs.sysfs_fd, "btree_node_size") >> 9);
110 struct bch_sb *sb = bch2_format(fs_opt_strs,
118 bchu_disk_add(fs, dev_opts.path);
122 static void device_remove_usage(void)
124 puts("bcachefs device_remove - remove a device from a filesystem\n"
126 " bcachefs device remove device\n"
127 " bcachefs device remove --by-id path devid\n"
130 " -i, --by-id Remove device by device id\n"
131 " -f, --force Force removal, even if some data\n"
132 " couldn't be migrated\n"
133 " -F, --force-metadata Force removal, even if some metadata\n"
134 " couldn't be migrated\n"
135 " -h, --help display this help and exit\n"
136 "Report bugs to <linux-bcache@vger.kernel.org>");
140 int cmd_device_remove(int argc, char *argv[])
142 static const struct option longopts[] = {
143 { "by-id", 0, NULL, 'i' },
144 { "force", 0, NULL, 'f' },
145 { "force-metadata", 0, NULL, 'F' },
146 { "help", 0, NULL, 'h' },
149 struct bchfs_handle fs;
151 int opt, flags = BCH_FORCE_IF_DEGRADED;
154 while ((opt = getopt_long(argc, argv, "fh", longopts, NULL)) != -1)
160 flags |= BCH_FORCE_IF_DATA_LOST;
163 flags |= BCH_FORCE_IF_METADATA_LOST;
166 device_remove_usage();
171 char *path = arg_pop();
173 die("Please supply filesystem to remove device from");
175 char *dev_str = arg_pop();
177 die("Please supply device id");
180 dev_idx = strtoul(dev_str, NULL, 10);
182 die("Error parsing device id: %m");
184 fs = bcache_fs_open(path);
186 char *dev = arg_pop();
188 die("Please supply a device to remove");
190 fs = bchu_fs_open_by_dev(dev, &dev_idx);
194 die("too many arguments");
196 bchu_disk_remove(fs, dev_idx, flags);
200 static void device_online_usage(void)
202 puts("bcachefs device online - readd a device to a running filesystem\n"
203 "Usage: bcachefs device online [OPTION]... device\n"
206 " -h, --help Display this help and exit\n"
208 "Report bugs to <linux-bcache@vger.kernel.org>");
211 int cmd_device_online(int argc, char *argv[])
215 while ((opt = getopt(argc, argv, "h")) != -1)
218 device_online_usage();
223 char *dev = arg_pop();
225 die("Please supply a device");
228 die("too many arguments");
231 struct bchfs_handle fs = bchu_fs_open_by_dev(dev, &dev_idx);
232 bchu_disk_online(fs, dev);
236 static void device_offline_usage(void)
238 puts("bcachefs device offline - take a device offline, without removing it\n"
239 "Usage: bcachefs device offline [OPTION]... device\n"
242 " -f, --force Force, if data redundancy will be degraded\n"
243 " -h, --help Display this help and exit\n"
245 "Report bugs to <linux-bcache@vger.kernel.org>");
248 int cmd_device_offline(int argc, char *argv[])
250 static const struct option longopts[] = {
251 { "force", 0, NULL, 'f' },
256 while ((opt = getopt_long(argc, argv, "fh",
257 longopts, NULL)) != -1)
260 flags |= BCH_FORCE_IF_DEGRADED;
263 device_offline_usage();
268 char *dev = arg_pop();
270 die("Please supply a device");
273 die("too many arguments");
276 struct bchfs_handle fs = bchu_fs_open_by_dev(dev, &dev_idx);
277 bchu_disk_offline(fs, dev_idx, flags);
281 static void device_evacuate_usage(void)
283 puts("bcachefs device evacuate - move data off of a given device\n"
284 "Usage: bcachefs device evacuate [OPTION]... device\n"
287 " -h, --help Display this help and exit\n"
289 "Report bugs to <linux-bcache@vger.kernel.org>");
292 int cmd_device_evacuate(int argc, char *argv[])
296 while ((opt = getopt(argc, argv, "h")) != -1)
299 device_evacuate_usage();
304 char *dev_path = arg_pop();
306 die("Please supply a device");
309 die("too many arguments");
312 struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx);
314 struct bch_ioctl_dev_usage u = bchu_dev_usage(fs, dev_idx);
316 if (u.state == BCH_MEMBER_STATE_rw) {
317 printf("Setting %s readonly\n", dev_path);
318 bchu_disk_set_state(fs, dev_idx, BCH_MEMBER_STATE_ro, 0);
321 return bchu_data(fs, (struct bch_ioctl_data) {
322 .op = BCH_DATA_OP_MIGRATE,
324 .start_pos = POS_MIN,
325 .end_btree = BTREE_ID_NR,
327 .migrate.dev = dev_idx,
331 static void device_set_state_usage(void)
333 puts("bcachefs device set-state\n"
334 "Usage: bcachefs device set-state device new-state\n"
337 " -f, --force Force, if data redundancy will be degraded\n"
338 " -o, --offline Set state of an offline device\n"
339 " -h, --help display this help and exit\n"
340 "Report bugs to <linux-bcache@vger.kernel.org>");
344 int cmd_device_set_state(int argc, char *argv[])
346 static const struct option longopts[] = {
347 { "force", 0, NULL, 'f' },
348 { "offline", 0, NULL, 'o' },
349 { "help", 0, NULL, 'h' },
353 bool offline = false;
355 while ((opt = getopt_long(argc, argv, "foh", longopts, NULL)) != -1)
358 flags |= BCH_FORCE_IF_DEGRADED;
364 device_set_state_usage();
368 char *dev_path = arg_pop();
370 die("Please supply a device");
372 char *new_state_str = arg_pop();
374 die("Please supply a device state");
376 unsigned new_state = read_string_list_or_die(new_state_str,
377 bch2_member_states, "device state");
381 struct bchfs_handle fs = bchu_fs_open_by_dev(dev_path, &dev_idx);
383 bchu_disk_set_state(fs, dev_idx, new_state, flags);
387 struct bch_opts opts = bch2_opts_empty();
388 struct bch_sb_handle sb = { NULL };
390 int ret = bch2_read_super(dev_path, &opts, &sb);
392 die("error opening %s: %s", dev_path, strerror(-ret));
394 struct bch_member *m = bch2_sb_get_members(sb.sb)->members + sb.sb->dev_idx;
396 SET_BCH_MEMBER_STATE(m, new_state);
398 le64_add_cpu(&sb.sb->seq, 1);
400 bch2_super_write(sb.bdev->bd_fd, sb.sb);
401 bch2_free_super(&sb);
407 static void device_resize_usage(void)
409 puts("bcachefs device resize \n"
410 "Usage: bcachefs device resize device [ size ]\n"
413 " -h, --help display this help and exit\n"
414 "Report bugs to <linux-bcache@vger.kernel.org>");
418 int cmd_device_resize(int argc, char *argv[])
420 static const struct option longopts[] = {
421 { "help", 0, NULL, 'h' },
427 while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
430 device_resize_usage();
434 char *dev = arg_pop();
436 die("Please supply a device to resize");
438 int dev_fd = xopen(dev, O_RDONLY);
440 char *size_arg = arg_pop();
442 size = get_size(dev, dev_fd);
443 else if (bch2_strtoull_h(size_arg, &size))
449 die("Too many arguments");
451 struct stat dev_stat = xfstat(dev_fd);
453 struct mntent *mount = dev_to_mount(dev);
455 if (!S_ISBLK(dev_stat.st_mode))
456 die("%s is mounted but isn't a block device?!", dev);
458 printf("Doing online resize of %s\n", dev);
460 struct bchfs_handle fs = bcache_fs_open(mount->mnt_dir);
462 unsigned idx = bchu_disk_get_idx(fs, dev_stat.st_rdev);
464 struct bch_sb *sb = bchu_read_super(fs, -1);
465 if (idx >= sb->nr_devices)
466 die("error reading superblock: dev idx >= sb->nr_devices");
468 struct bch_sb_field_members *mi = bch2_sb_get_members(sb);
470 die("error reading superblock: no member info");
472 /* could also just read this out of sysfs... meh */
473 struct bch_member *m = mi->members + idx;
475 u64 nbuckets = size / le16_to_cpu(m->bucket_size);
477 printf("resizing %s to %llu buckets\n", dev, nbuckets);
478 bchu_disk_resize(fs, idx, nbuckets);
480 printf("Doing offline resize of %s\n", dev);
482 struct bch_fs *c = bch2_fs_open(&dev, 1, bch2_opts_empty());
484 die("error opening %s: %s", dev, strerror(-PTR_ERR(c)));
486 struct bch_dev *ca, *resize = NULL;
489 for_each_online_member(ca, c, i) {
491 die("confused: more than one online device?");
493 percpu_ref_get(&resize->io_ref);
496 u64 nbuckets = size / le16_to_cpu(resize->mi.bucket_size);
498 printf("resizing %s to %llu buckets\n", dev, nbuckets);
499 int ret = bch2_dev_resize(c, resize, nbuckets);
501 fprintf(stderr, "resize error: %s\n", strerror(-ret));
503 percpu_ref_put(&resize->io_ref);
509 static void device_resize_journal_usage(void)
511 puts("bcachefs device resize-journal \n"
512 "Usage: bcachefs device resize-journal device [ size ]\n"
515 " -h, --help display this help and exit\n"
516 "Report bugs to <linux-bcache@vger.kernel.org>");
520 int cmd_device_resize_journal(int argc, char *argv[])
522 static const struct option longopts[] = {
523 { "help", 0, NULL, 'h' },
529 while ((opt = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
532 device_resize_journal_usage();
536 char *dev = arg_pop();
538 die("Please supply a device");
540 int dev_fd = xopen(dev, O_RDONLY);
542 char *size_arg = arg_pop();
544 size = get_size(dev, dev_fd);
545 else if (bch2_strtoull_h(size_arg, &size))
551 die("Too many arguments");
553 struct stat dev_stat = xfstat(dev_fd);
555 struct mntent *mount = dev_to_mount(dev);
557 if (!S_ISBLK(dev_stat.st_mode))
558 die("%s is mounted but isn't a block device?!", dev);
560 struct bchfs_handle fs = bcache_fs_open(mount->mnt_dir);
562 unsigned idx = bchu_disk_get_idx(fs, dev_stat.st_rdev);
564 struct bch_sb *sb = bchu_read_super(fs, -1);
565 if (idx >= sb->nr_devices)
566 die("error reading superblock: dev idx >= sb->nr_devices");
568 struct bch_sb_field_members *mi = bch2_sb_get_members(sb);
570 die("error reading superblock: no member info");
572 /* could also just read this out of sysfs... meh */
573 struct bch_member *m = mi->members + idx;
575 u64 nbuckets = size / le16_to_cpu(m->bucket_size);
577 printf("resizing journal on %s to %llu buckets\n", dev, nbuckets);
578 bchu_disk_resize_journal(fs, idx, nbuckets);
580 printf("%s is offline - starting:\n", dev);
582 struct bch_fs *c = bch2_fs_open(&dev, 1, bch2_opts_empty());
584 die("error opening %s: %s", dev, strerror(-PTR_ERR(c)));
586 struct bch_dev *ca, *resize = NULL;
589 for_each_online_member(ca, c, i) {
591 die("confused: more than one online device?");
593 percpu_ref_get(&resize->io_ref);
596 u64 nbuckets = size / le16_to_cpu(resize->mi.bucket_size);
598 printf("resizing journal on %s to %llu buckets\n", dev, nbuckets);
599 int ret = bch2_set_nr_journal_buckets(c, resize, nbuckets);
601 fprintf(stderr, "resize error: %s\n", strerror(-ret));
603 percpu_ref_put(&resize->io_ref);