#include "tools-util.h"
#include "libbcachefs/bcachefs.h"
-#include "libbcachefs/bset.h"
#include "libbcachefs/btree_cache.h"
#include "libbcachefs/btree_io.h"
#include "libbcachefs/btree_iter.h"
-#include "libbcachefs/buckets.h"
#include "libbcachefs/checksum.h"
#include "libbcachefs/error.h"
-#include "libbcachefs/journal.h"
-#include "libbcachefs/journal_io.h"
+#include "libbcachefs/extents.h"
#include "libbcachefs/super.h"
-static void dump_usage(void)
-{
- puts("bcachefs dump - dump filesystem metadata\n"
- "Usage: bcachefs dump [OPTION]... <devices>\n"
- "\n"
- "Options:\n"
- " -o output Output qcow2 image(s)\n"
- " -f Force; overwrite when needed\n"
- " -h Display this help and exit\n"
- "Report bugs to <linux-bcache@vger.kernel.org>");
-}
-
-static void dump_one_device(struct bch_fs *c, struct bch_dev *ca, int fd)
-{
- struct bch_sb *sb = ca->disk_sb.sb;
- ranges data;
- unsigned i;
- int ret;
-
- darray_init(data);
-
- /* Superblock: */
- range_add(&data, BCH_SB_LAYOUT_SECTOR << 9,
- sizeof(struct bch_sb_layout));
-
- for (i = 0; i < sb->layout.nr_superblocks; i++)
- range_add(&data,
- le64_to_cpu(sb->layout.sb_offset[i]) << 9,
- vstruct_bytes(sb));
-
- /* Journal: */
- for (i = 0; i < ca->journal.nr; i++)
- if (ca->journal.bucket_seq[i] >= c->journal.last_seq_ondisk) {
- u64 bucket = ca->journal.buckets[i];
-
- range_add(&data,
- bucket_bytes(ca) * bucket,
- bucket_bytes(ca));
- }
-
- /* Btree: */
- for (i = 0; i < BTREE_ID_NR; i++) {
- const struct bch_extent_ptr *ptr;
- struct bkey_ptrs_c ptrs;
- struct btree_trans trans;
- struct btree_iter iter;
- struct btree *b;
-
- bch2_trans_init(&trans, c, 0, 0);
-
- __for_each_btree_node(&trans, iter, i, POS_MIN, 0, 1, 0, b, ret) {
- struct btree_node_iter iter;
- struct bkey u;
- struct bkey_s_c k;
-
- for_each_btree_node_key_unpack(b, k, &iter, &u) {
- ptrs = bch2_bkey_ptrs_c(k);
-
- bkey_for_each_ptr(ptrs, ptr)
- if (ptr->dev == ca->dev_idx)
- range_add(&data,
- ptr->offset << 9,
- btree_bytes(c));
- }
- }
-
- if (ret)
- die("error %s walking btree nodes", strerror(-ret));
-
- b = c->btree_roots[i].b;
- if (!btree_node_fake(b)) {
- ptrs = bch2_bkey_ptrs_c(bkey_i_to_s_c(&b->key));
-
- bkey_for_each_ptr(ptrs, ptr)
- if (ptr->dev == ca->dev_idx)
- range_add(&data,
- ptr->offset << 9,
- btree_bytes(c));
- }
-
- bch2_trans_iter_exit(&trans, &iter);
- bch2_trans_exit(&trans);
- }
-
- qcow2_write_image(ca->disk_sb.bdev->bd_fd, fd, &data,
- max_t(unsigned, btree_bytes(c) / 8, block_bytes(c)));
- darray_free(data);
-}
-
-int cmd_dump(int argc, char *argv[])
-{
- struct bch_opts opts = bch2_opts_empty();
- struct bch_dev *ca;
- char *out = NULL;
- unsigned i, nr_devices = 0;
- bool force = false;
- int fd, opt;
-
- opt_set(opts, nochanges, true);
- opt_set(opts, norecovery, true);
- opt_set(opts, degraded, true);
- opt_set(opts, errors, BCH_ON_ERROR_continue);
- opt_set(opts, fix_errors, FSCK_OPT_NO);
-
- while ((opt = getopt(argc, argv, "o:fvh")) != -1)
- switch (opt) {
- case 'o':
- out = optarg;
- break;
- case 'f':
- force = true;
- break;
- case 'v':
- opt_set(opts, verbose, true);
- break;
- case 'h':
- dump_usage();
- exit(EXIT_SUCCESS);
- }
- args_shift(optind);
-
- if (!out)
- die("Please supply output filename");
-
- if (!argc)
- die("Please supply device(s) to check");
-
- struct bch_fs *c = bch2_fs_open(argv, argc, opts);
- if (IS_ERR(c))
- die("error opening %s: %s", argv[0], strerror(-PTR_ERR(c)));
-
- down_read(&c->gc_lock);
-
- for_each_online_member(ca, c, i)
- nr_devices++;
-
- BUG_ON(!nr_devices);
-
- for_each_online_member(ca, c, i) {
- int flags = O_WRONLY|O_CREAT|O_TRUNC;
-
- if (!force)
- flags |= O_EXCL;
-
- if (!c->devs[i])
- continue;
-
- char *path = nr_devices > 1
- ? mprintf("%s.%u", out, i)
- : strdup(out);
- fd = xopen(path, flags, 0600);
- free(path);
-
- dump_one_device(c, ca, fd);
- close(fd);
- }
-
- up_read(&c->gc_lock);
-
- bch2_fs_stop(c);
- return 0;
-}
-
static void list_keys(struct bch_fs *c, enum btree_id btree_id,
struct bpos start, struct bpos end)
{
struct btree_trans trans;
struct btree_iter iter;
struct bkey_s_c k;
- char buf[512];
+ struct printbuf buf = PRINTBUF;
int ret;
bch2_trans_init(&trans, c, 0, 0);
if (bkey_cmp(k.k->p, end) > 0)
break;
- bch2_bkey_val_to_text(&PBUF(buf), c, k);
- puts(buf);
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, k);
+ puts(buf.buf);
}
bch2_trans_iter_exit(&trans, &iter);
bch2_trans_exit(&trans);
+
+ printbuf_exit(&buf);
}
static void list_btree_formats(struct bch_fs *c, enum btree_id btree_id, unsigned level,
struct btree_trans trans;
struct btree_iter iter;
struct btree *b;
- char buf[4096];
+ struct printbuf buf = PRINTBUF;
int ret;
bch2_trans_init(&trans, c, 0, 0);
if (bkey_cmp(b->key.k.p, end) > 0)
break;
- bch2_btree_node_to_text(&PBUF(buf), c, b);
- puts(buf);
+ printbuf_reset(&buf);
+ bch2_btree_node_to_text(&buf, c, b);
+ puts(buf.buf);
}
bch2_trans_iter_exit(&trans, &iter);
die("error %s walking btree nodes", strerror(-ret));
bch2_trans_exit(&trans);
+ printbuf_exit(&buf);
}
static void list_nodes(struct bch_fs *c, enum btree_id btree_id, unsigned level,
struct btree_trans trans;
struct btree_iter iter;
struct btree *b;
- char buf[4096];
+ struct printbuf buf = PRINTBUF;
int ret;
bch2_trans_init(&trans, c, 0, 0);
if (bkey_cmp(b->key.k.p, end) > 0)
break;
- bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(&b->key));
- fputs(buf, stdout);
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(&b->key));
+ fputs(buf.buf, stdout);
putchar('\n');
}
bch2_trans_iter_exit(&trans, &iter);
die("error %s walking btree nodes", strerror(-ret));
bch2_trans_exit(&trans);
+ printbuf_exit(&buf);
}
static void print_node_ondisk(struct bch_fs *c, struct btree *b)
struct bch_dev *ca;
struct bio *bio;
unsigned offset = 0;
+ int ret;
if (bch2_bkey_pick_read_device(c, bkey_i_to_s_c(&b->key), NULL, &pick) <= 0) {
printf("error getting device to read from\n");
return;
}
- n_ondisk = malloc(btree_bytes(c));
+ n_ondisk = aligned_alloc(block_bytes(c), btree_bytes(c));
- bio = bio_alloc_bioset(GFP_NOIO,
- buf_pages(n_ondisk, btree_bytes(c)),
- &c->btree_bio);
- bio_set_dev(bio, ca->disk_sb.bdev);
- bio->bi_opf = REQ_OP_READ|REQ_META;
+ bio = bio_alloc_bioset(ca->disk_sb.bdev,
+ buf_pages(n_ondisk, btree_bytes(c)),
+ REQ_OP_READ|REQ_META,
+ GFP_NOIO,
+ &c->btree_bio);
bio->bi_iter.bi_sector = pick.ptr.offset;
bch2_bio_map(bio, n_ondisk, btree_bytes(c));
- submit_bio_wait(bio);
+ ret = submit_bio_wait(bio);
+ if (ret)
+ die("error reading btree node: %i", ret);
bio_put(bio);
percpu_ref_put(&ca->io_ref);
i = &n_ondisk->keys;
if (!bch2_checksum_type_valid(c, BSET_CSUM_TYPE(i)))
- die("unknown checksum type");
+ die("unknown checksum type at offset %u: %llu",
+ offset, BSET_CSUM_TYPE(i));
nonce = btree_nonce(i, offset << 9);
csum = csum_vstruct(c, BSET_CSUM_TYPE(i), nonce, n_ondisk);
break;
if (!bch2_checksum_type_valid(c, BSET_CSUM_TYPE(i)))
- die("unknown checksum type");
+ die("unknown checksum type at offset %u: %llu",
+ offset, BSET_CSUM_TYPE(i));
nonce = btree_nonce(i, offset << 9);
csum = csum_vstruct(c, BSET_CSUM_TYPE(i), nonce, bne);
for (k = i->start; k != vstruct_last(i); k = bkey_next(k)) {
struct bkey u;
- char buf[4096];
+ struct printbuf buf = PRINTBUF;
+
+ printbuf_indent_add(&buf, 4);
+
+ bch2_bkey_val_to_text(&buf, c, bkey_disassemble(b, k, &u));
+ fprintf(stdout, "%s\n", buf.buf);
- bch2_bkey_val_to_text(&PBUF(buf), c, bkey_disassemble(b, k, &u));
- fprintf(stdout, " %s\n", buf);
+ printbuf_exit(&buf);
}
}
struct btree_trans trans;
struct btree_iter iter;
struct btree *b;
- char buf[4096];
+ struct printbuf buf = PRINTBUF;
int ret;
bch2_trans_init(&trans, c, 0, 0);
if (bkey_cmp(b->key.k.p, end) > 0)
break;
- bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(&b->key));
- fputs(buf, stdout);
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(&b->key));
+ fputs(buf.buf, stdout);
putchar('\n');
print_node_ondisk(c, b);
die("error %s walking btree nodes", strerror(-ret));
bch2_trans_exit(&trans);
+ printbuf_exit(&buf);
}
static void list_nodes_keys(struct bch_fs *c, enum btree_id btree_id, unsigned level,
struct bkey unpacked;
struct bkey_s_c k;
struct btree *b;
- char buf[4096];
+ struct printbuf buf = PRINTBUF;
int ret;
bch2_trans_init(&trans, c, 0, 0);
if (bkey_cmp(b->key.k.p, end) > 0)
break;
- bch2_btree_node_to_text(&PBUF(buf), c, b);
- fputs(buf, stdout);
+ printbuf_reset(&buf);
+ bch2_btree_node_to_text(&buf, c, b);
+ fputs(buf.buf, stdout);
for_each_btree_node_key_unpack(b, k, &node_iter, &unpacked) {
- bch2_bkey_val_to_text(&PBUF(buf), c, k);
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, k);
putchar('\t');
- puts(buf);
+ puts(buf.buf);
}
}
bch2_trans_iter_exit(&trans, &iter);
die("error %s walking btree nodes", strerror(-ret));
bch2_trans_exit(&trans);
+ printbuf_exit(&buf);
}
static void list_keys_usage(void)
" -f Check (fsck) the filesystem first\n"
" -v Verbose mode\n"
" -h Display this help and exit\n"
- "Report bugs to <linux-bcache@vger.kernel.org>");
+ "Report bugs to <linux-bcachefs@vger.kernel.org>");
}
#define LIST_MODES() \
bch2_fs_stop(c);
return 0;
}
-
-static void list_journal_usage(void)
-{
- puts("bcachefs list_journal - print contents of journal\n"
- "Usage: bcachefs list_journal [OPTION]... <devices>\n"
- "\n"
- "Options:\n"
- " -a Read entire journal, not just dirty entries\n"
- " -h Display this help and exit\n"
- "Report bugs to <linux-bcache@vger.kernel.org>");
-}
-
-int cmd_list_journal(int argc, char *argv[])
-{
- struct bch_opts opts = bch2_opts_empty();
- int opt;
-
- opt_set(opts, nochanges, true);
- opt_set(opts, norecovery, true);
- opt_set(opts, degraded, true);
- opt_set(opts, errors, BCH_ON_ERROR_continue);
- opt_set(opts, fix_errors, FSCK_OPT_YES);
- opt_set(opts, keep_journal, true);
-
- while ((opt = getopt(argc, argv, "ah")) != -1)
- switch (opt) {
- case 'a':
- opt_set(opts, read_entire_journal, true);
- break;
- case 'h':
- list_journal_usage();
- exit(EXIT_SUCCESS);
- }
- args_shift(optind);
-
- if (!argc)
- die("Please supply device(s) to open");
-
- struct bch_fs *c = bch2_fs_open(argv, argc, opts);
- if (IS_ERR(c))
- die("error opening %s: %s", argv[0], strerror(-PTR_ERR(c)));
-
- struct journal_replay *p;
- struct jset_entry *entry;
-
- list_for_each_entry(p, &c->journal_entries, list) {
- printf("journal entry %8llu\n"
- " version %8u\n"
- " last seq %8llu\n"
- ,
- le64_to_cpu(p->j.seq),
- le32_to_cpu(p->j.version),
- le64_to_cpu(p->j.last_seq));
-
- vstruct_for_each(&p->j, entry) {
- char _buf[4096];
- struct printbuf buf = PBUF(_buf);
-
- printbuf_indent_push(&buf, 2);
- bch2_journal_entry_to_text(&buf, c, entry);
- printf("%s\n", _buf);
- }
- }
-
- bch2_fs_stop(c);
- return 0;
-}
projects / bcachefs-tools-debian / blobdiff