memset(l, 0, sizeof(*l));
- l->magic = BCACHE_MAGIC;
+ l->magic = BCHFS_MAGIC;
l->layout_type = 0;
l->nr_superblocks = 2;
l->sb_max_size_bits = ilog2(sb_size);
sb.sb->version = le16_to_cpu(opts.version);
sb.sb->version_min = le16_to_cpu(opts.version);
- sb.sb->magic = BCACHE_MAGIC;
+ sb.sb->magic = BCHFS_MAGIC;
sb.sb->user_uuid = opts.uuid;
sb.sb->nr_devices = nr_devs;
/* Disk labels*/
for (i = devs; i < devs + nr_devs; i++) {
- struct bch_member *m = mi->members + (i - devs);
+ struct bch_member *m;
int idx;
if (!i->label)
if (idx < 0)
die("error creating disk path: %s", strerror(-idx));
+ /*
+ * Recompute mi and m after each sb modification: its location
+ * in memory may have changed due to reallocation.
+ */
+ mi = bch2_sb_get_members(sb.sb);
+ m = mi->members + (i - devs);
+
SET_BCH_MEMBER_GROUP(m, idx + 1);
}
xpread(fd, &sb, sizeof(sb), sector << 9);
- if (memcmp(&sb.magic, &BCACHE_MAGIC, sizeof(sb.magic)))
+ if (memcmp(&sb.magic, &BCACHE_MAGIC, sizeof(sb.magic)) &&
+ memcmp(&sb.magic, &BCHFS_MAGIC, sizeof(sb.magic)))
die("not a bcachefs superblock");
size_t bytes = vstruct_bytes(&sb);
return ret;
}
-static unsigned get_dev_has_data(struct bch_sb *sb, unsigned dev)
-{
- struct bch_sb_field_replicas *replicas;
- struct bch_replicas_entry *r;
- unsigned i, data_has = 0;
-
- replicas = bch2_sb_get_replicas(sb);
-
- if (replicas)
- for_each_replicas_entry(replicas, r)
- for (i = 0; i < r->nr_devs; i++)
- if (r->devs[i] == dev)
- data_has |= 1 << r->data_type;
-
- return data_has;
-}
-
-static int bch2_sb_get_target(struct bch_sb *sb, char *buf, size_t len, u64 v)
-{
- struct target t = target_decode(v);
- int ret;
-
- switch (t.type) {
- case TARGET_NULL:
- return scnprintf(buf, len, "none");
- case TARGET_DEV: {
- struct bch_sb_field_members *mi = bch2_sb_get_members(sb);
- struct bch_member *m = mi->members + t.dev;
-
- if (bch2_dev_exists(sb, mi, t.dev)) {
- char uuid_str[40];
-
- uuid_unparse(m->uuid.b, uuid_str);
-
- ret = scnprintf(buf, len, "Device %u (%s)", t.dev,
- uuid_str);
- } else {
- ret = scnprintf(buf, len, "Bad device %u", t.dev);
- }
-
- break;
- }
- case TARGET_GROUP: {
- struct bch_sb_field_disk_groups *gi;
- gi = bch2_sb_get_disk_groups(sb);
-
- struct bch_disk_group *g = gi->entries + t.group;
-
- if (t.group < disk_groups_nr(gi) && !BCH_GROUP_DELETED(g)) {
- ret = scnprintf(buf, len, "Label %u (%.*s)", t.group,
- BCH_SB_LABEL_SIZE, g->label);
- } else {
- ret = scnprintf(buf, len, "Bad label %u", t.group);
- }
- break;
- }
- default:
- BUG();
- }
-
- return ret;
-}
-
-/* superblock printing: */
-
-static void bch2_sb_print_layout(struct bch_sb *sb, enum units units)
-{
- struct bch_sb_layout *l = &sb->layout;
- unsigned i;
-
- printf(" type: %u\n"
- " superblock max size: %s\n"
- " nr superblocks: %u\n"
- " Offsets: ",
- l->layout_type,
- pr_units(1 << l->sb_max_size_bits, units),
- l->nr_superblocks);
-
- for (i = 0; i < l->nr_superblocks; i++) {
- if (i)
- printf(", ");
- printf("%llu", le64_to_cpu(l->sb_offset[i]));
- }
- putchar('\n');
-}
-
-static void bch2_sb_print_journal(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_journal *journal = field_to_type(f, journal);
- unsigned i, nr = bch2_nr_journal_buckets(journal);
-
- printf(" Buckets: ");
- for (i = 0; i < nr; i++) {
- if (i)
- putchar(' ');
- printf("%llu", le64_to_cpu(journal->buckets[i]));
- }
- putchar('\n');
-}
-
-static void bch2_sb_print_members(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_members *mi = field_to_type(f, members);
- struct bch_sb_field_disk_groups *gi = bch2_sb_get_disk_groups(sb);
- unsigned i;
-
- for (i = 0; i < sb->nr_devices; i++) {
- struct bch_member *m = mi->members + i;
- time_t last_mount = le64_to_cpu(m->last_mount);
- char member_uuid_str[40];
- char data_allowed_str[100];
- char data_has_str[100];
- char label [BCH_SB_LABEL_SIZE+10];
- char time_str[64];
-
- if (!bch2_member_exists(m))
- continue;
-
- uuid_unparse(m->uuid.b, member_uuid_str);
-
- if (BCH_MEMBER_GROUP(m)) {
- unsigned idx = BCH_MEMBER_GROUP(m) - 1;
-
- if (idx < disk_groups_nr(gi)) {
- scnprintf(label, sizeof(label), "%.*s (%u)",
- BCH_SB_LABEL_SIZE,
- gi->entries[idx].label, idx);
- } else {
- strcpy(label, "(bad disk labels section)");
- }
- } else {
- strcpy(label, "(none)");
- }
-
- bch2_flags_to_text(&PBUF(data_allowed_str),
- bch2_data_types,
- BCH_MEMBER_DATA_ALLOWED(m));
- if (!data_allowed_str[0])
- strcpy(data_allowed_str, "(none)");
-
- bch2_flags_to_text(&PBUF(data_has_str),
- bch2_data_types,
- get_dev_has_data(sb, i));
- if (!data_has_str[0])
- strcpy(data_has_str, "(none)");
-
- if (last_mount) {
- struct tm *tm = localtime(&last_mount);
- size_t err = strftime(time_str, sizeof(time_str), "%c", tm);
- if (!err)
- strcpy(time_str, "(formatting error)");
- } else {
- strcpy(time_str, "(never)");
- }
-
- printf(" Device %u:\n"
- " UUID: %s\n"
- " Size: %s\n"
- " Bucket size: %s\n"
- " First bucket: %u\n"
- " Buckets: %llu\n"
- " Last mount: %s\n"
- " State: %s\n"
- " Group: %s\n"
- " Data allowed: %s\n"
-
- " Has data: %s\n"
-
- " Discard: %llu\n",
- i, member_uuid_str,
- pr_units(le16_to_cpu(m->bucket_size) *
- le64_to_cpu(m->nbuckets), units),
- pr_units(le16_to_cpu(m->bucket_size), units),
- le16_to_cpu(m->first_bucket),
- le64_to_cpu(m->nbuckets),
- time_str,
-
- BCH_MEMBER_STATE(m) < BCH_MEMBER_STATE_NR
- ? bch2_member_states[BCH_MEMBER_STATE(m)]
- : "unknown",
-
- label,
- data_allowed_str,
- data_has_str,
-
- BCH_MEMBER_DISCARD(m));
- }
-}
-
-static void bch2_sb_print_crypt(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_crypt *crypt = field_to_type(f, crypt);
-
- printf(" KFD: %llu\n"
- " scrypt n: %llu\n"
- " scrypt r: %llu\n"
- " scrypt p: %llu\n",
- BCH_CRYPT_KDF_TYPE(crypt),
- BCH_KDF_SCRYPT_N(crypt),
- BCH_KDF_SCRYPT_R(crypt),
- BCH_KDF_SCRYPT_P(crypt));
-}
-
-static void bch2_sb_print_replicas_v0(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_replicas_v0 *replicas = field_to_type(f, replicas_v0);
- struct bch_replicas_entry_v0 *e;
- unsigned i;
-
- for_each_replicas_entry(replicas, e) {
- printf_pad(32, " %s:", bch2_data_types[e->data_type]);
-
- putchar('[');
- for (i = 0; i < e->nr_devs; i++) {
- if (i)
- putchar(' ');
- printf("%u", e->devs[i]);
- }
- printf("]\n");
- }
-}
-
-static void bch2_sb_print_replicas(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_replicas *replicas = field_to_type(f, replicas);
- struct bch_replicas_entry *e;
- unsigned i;
-
- for_each_replicas_entry(replicas, e) {
- printf_pad(32, " %s: %u/%u",
- bch2_data_types[e->data_type],
- e->nr_required,
- e->nr_devs);
-
- putchar('[');
- for (i = 0; i < e->nr_devs; i++) {
- if (i)
- putchar(' ');
- printf("%u", e->devs[i]);
- }
- printf("]\n");
- }
-}
-
-static void bch2_sb_print_quota(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
-}
-
-static void bch2_sb_print_disk_groups(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
-}
-
-static void bch2_sb_print_clean(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_clean *clean = field_to_type(f, clean);
-
-
- printf(" flags: %x", le32_to_cpu(clean->flags));
- printf(" journal seq: %llx", le64_to_cpu(clean->journal_seq));
-}
-
-static void bch2_sb_print_journal_seq_blacklist(struct bch_sb *sb, struct bch_sb_field *f,
- enum units units)
-{
- struct bch_sb_field_journal_seq_blacklist *bl = field_to_type(f, journal_seq_blacklist);
- unsigned i, nr = blacklist_nr_entries(bl);
-
- for (i = 0; i < nr; i++) {
- struct journal_seq_blacklist_entry *e =
- bl->start + i;
-
- printf(" %llu-%llu\n",
- le64_to_cpu(e->start),
- le64_to_cpu(e->end));
- }
-}
-
-typedef void (*sb_field_print_fn)(struct bch_sb *, struct bch_sb_field *, enum units);
-
-struct bch_sb_field_toolops {
- sb_field_print_fn print;
-};
-
-static const struct bch_sb_field_toolops bch2_sb_field_ops[] = {
-#define x(f, nr) \
- [BCH_SB_FIELD_##f] = { \
- .print = bch2_sb_print_##f, \
- },
- BCH_SB_FIELDS()
-#undef x
-};
-
-static inline void bch2_sb_field_print(struct bch_sb *sb,
- struct bch_sb_field *f,
- enum units units)
-{
- unsigned type = le32_to_cpu(f->type);
-
- if (type < BCH_SB_FIELD_NR)
- bch2_sb_field_ops[type].print(sb, f, units);
- else
- printf("(unknown field %u)\n", type);
-}
-
-void bch2_sb_print(struct bch_sb *sb, bool print_layout,
- unsigned fields, enum units units)
-{
- struct bch_sb_field_members *mi;
- char user_uuid_str[40], internal_uuid_str[40];
- char features_str[500];
- char compat_features_str[500];
- char fields_have_str[200];
- char label[BCH_SB_LABEL_SIZE + 1];
- char time_str[64];
- char foreground_str[64];
- char background_str[64];
- char promote_str[64];
- char metadata_str[64];
- struct bch_sb_field *f;
- u64 fields_have = 0;
- unsigned nr_devices = 0;
- time_t time_base = le64_to_cpu(sb->time_base_lo) / NSEC_PER_SEC;
-
- memcpy(label, sb->label, BCH_SB_LABEL_SIZE);
- label[BCH_SB_LABEL_SIZE] = '\0';
-
- uuid_unparse(sb->user_uuid.b, user_uuid_str);
- uuid_unparse(sb->uuid.b, internal_uuid_str);
-
- if (time_base) {
- struct tm *tm = localtime(&time_base);
- size_t err = strftime(time_str, sizeof(time_str), "%c", tm);
- if (!err)
- strcpy(time_str, "(formatting error)");
- } else {
- strcpy(time_str, "(not set)");
- }
-
- mi = bch2_sb_get_members(sb);
- if (mi) {
- struct bch_member *m;
-
- for (m = mi->members;
- m < mi->members + sb->nr_devices;
- m++)
- nr_devices += bch2_member_exists(m);
- }
-
- bch2_sb_get_target(sb, foreground_str, sizeof(foreground_str),
- BCH_SB_FOREGROUND_TARGET(sb));
-
- bch2_sb_get_target(sb, background_str, sizeof(background_str),
- BCH_SB_BACKGROUND_TARGET(sb));
-
- bch2_sb_get_target(sb, promote_str, sizeof(promote_str),
- BCH_SB_PROMOTE_TARGET(sb));
-
- bch2_sb_get_target(sb, metadata_str, sizeof(metadata_str),
- BCH_SB_METADATA_TARGET(sb));
-
- bch2_flags_to_text(&PBUF(features_str),
- bch2_sb_features,
- le64_to_cpu(sb->features[0]));
-
- bch2_flags_to_text(&PBUF(compat_features_str),
- bch2_sb_compat,
- le64_to_cpu(sb->compat[0]));
-
- vstruct_for_each(sb, f)
- fields_have |= 1 << le32_to_cpu(f->type);
- bch2_flags_to_text(&PBUF(fields_have_str),
- bch2_sb_fields, fields_have);
-
- printf("External UUID: %s\n"
- "Internal UUID: %s\n"
- "Device index: %u\n"
- "Label: %s\n"
- "Version: %u\n"
- "Oldest version on disk: %u\n"
- "Created: %s\n"
- "Squence number: %llu\n"
- "Block_size: %s\n"
- "Btree node size: %s\n"
- "Error action: %s\n"
- "Clean: %llu\n"
- "Features: %s\n"
- "Compat features: %s\n"
-
- "Metadata replicas: %llu\n"
- "Data replicas: %llu\n"
-
- "Metadata checksum type: %s (%llu)\n"
- "Data checksum type: %s (%llu)\n"
- "Compression type: %s (%llu)\n"
-
- "Foreground write target: %s\n"
- "Background write target: %s\n"
- "Promote target: %s\n"
- "Metadata target: %s\n"
-
- "String hash type: %s (%llu)\n"
- "32 bit inodes: %llu\n"
- "GC reserve percentage: %llu%%\n"
- "Root reserve percentage: %llu%%\n"
-
- "Devices: %u live, %u total\n"
- "Sections: %s\n"
- "Superblock size: %llu\n",
- user_uuid_str,
- internal_uuid_str,
- sb->dev_idx,
- label,
- le16_to_cpu(sb->version),
- le16_to_cpu(sb->version_min),
- time_str,
- le64_to_cpu(sb->seq),
- pr_units(le16_to_cpu(sb->block_size), units),
- pr_units(BCH_SB_BTREE_NODE_SIZE(sb), units),
-
- BCH_SB_ERROR_ACTION(sb) < BCH_ON_ERROR_NR
- ? bch2_error_actions[BCH_SB_ERROR_ACTION(sb)]
- : "unknown",
-
- BCH_SB_CLEAN(sb),
- features_str,
- compat_features_str,
-
- BCH_SB_META_REPLICAS_WANT(sb),
- BCH_SB_DATA_REPLICAS_WANT(sb),
-
- BCH_SB_META_CSUM_TYPE(sb) < BCH_CSUM_OPT_NR
- ? bch2_csum_opts[BCH_SB_META_CSUM_TYPE(sb)]
- : "unknown",
- BCH_SB_META_CSUM_TYPE(sb),
-
- BCH_SB_DATA_CSUM_TYPE(sb) < BCH_CSUM_OPT_NR
- ? bch2_csum_opts[BCH_SB_DATA_CSUM_TYPE(sb)]
- : "unknown",
- BCH_SB_DATA_CSUM_TYPE(sb),
-
- BCH_SB_COMPRESSION_TYPE(sb) < BCH_COMPRESSION_OPT_NR
- ? bch2_compression_opts[BCH_SB_COMPRESSION_TYPE(sb)]
- : "unknown",
- BCH_SB_COMPRESSION_TYPE(sb),
-
- foreground_str,
- background_str,
- promote_str,
- metadata_str,
-
- BCH_SB_STR_HASH_TYPE(sb) < BCH_STR_HASH_NR
- ? bch2_str_hash_types[BCH_SB_STR_HASH_TYPE(sb)]
- : "unknown",
- BCH_SB_STR_HASH_TYPE(sb),
-
- BCH_SB_INODE_32BIT(sb),
- BCH_SB_GC_RESERVE(sb),
- BCH_SB_ROOT_RESERVE(sb),
-
- nr_devices, sb->nr_devices,
- fields_have_str,
- vstruct_bytes(sb));
-
- if (print_layout) {
- printf("\n"
- "Layout:\n");
- bch2_sb_print_layout(sb, units);
- }
-
- vstruct_for_each(sb, f) {
- unsigned type = le32_to_cpu(f->type);
- char name[60];
-
- if (!(fields & (1 << type)))
- continue;
-
- if (type < BCH_SB_FIELD_NR) {
- scnprintf(name, sizeof(name), "%s", bch2_sb_fields[type]);
- name[0] = toupper(name[0]);
- } else {
- scnprintf(name, sizeof(name), "(unknown field %u)", type);
- }
-
- printf("\n%s (size %llu):\n", name, vstruct_bytes(f));
- if (type < BCH_SB_FIELD_NR)
- bch2_sb_field_print(sb, f, units);
- }
-}
-
/* ioctl interface: */
/* Global control device: */
struct bch_opts bch2_parse_opts(struct bch_opt_strs strs)
{
struct bch_opts opts = bch2_opts_empty();
+ struct printbuf err = PRINTBUF;
unsigned i;
int ret;
u64 v;
bch2_opt_table[i].type == BCH_OPT_FN)
continue;
- ret = bch2_opt_parse(NULL, "option",
+ ret = bch2_opt_parse(NULL,
&bch2_opt_table[i],
- strs.by_id[i], &v);
+ strs.by_id[i], &v, &err);
if (ret < 0)
- die("Invalid %s: %s",
- bch2_opt_table[i].attr.name,
- strerror(-ret));
+ die("Invalid option %s", err.buf);
bch2_opt_set_by_id(&opts, i, v);
}
+ printbuf_exit(&err);
return opts;
}
struct dirent *d;
dev_names devs;
- darray_init(devs);
+ darray_init(&devs);
while ((errno = 0), (d = readdir(dir))) {
struct dev_name n = { 0, NULL, NULL };
n.label = read_file_str(fs.sysfs_fd, label_attr);
free(label_attr);
- darray_append(devs, n);
+ darray_push(&devs, n);
}
closedir(dir);
projects / bcachefs-tools-debian / blobdiff