]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - cmd_debug.c
Update bcachefs sources to 18686af684 bcachefs: Inode backpointers
[bcachefs-tools-debian] / cmd_debug.c
index 51099f1a6dc5c487b396d51560476897dcd9d361..4938ec07e3f49f409bd372af88834f91720ea7ab 100644 (file)
@@ -9,13 +9,15 @@
 #include "tools-util.h"
 
 #include "libbcachefs/bcachefs.h"
-#include "libbcachefs/alloc.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/super.h"
 
 static void dump_usage(void)
@@ -60,19 +62,40 @@ static void dump_one_device(struct bch_fs *c, struct bch_dev *ca, int fd)
        /* Btree: */
        for (i = 0; i < BTREE_ID_NR; i++) {
                const struct bch_extent_ptr *ptr;
-               struct btree_iter iter;
+               struct bkey_ptrs_c ptrs;
+               struct btree_trans trans;
+               struct btree_iter *iter;
                struct btree *b;
 
-               for_each_btree_node(&iter, c, i, POS_MIN, 0, b) {
-                       struct bkey_s_c_extent e = bkey_i_to_s_c_extent(&b->key);
+               bch2_trans_init(&trans, c, 0, 0);
 
-                       extent_for_each_ptr(e, ptr)
+               __for_each_btree_node(&trans, iter, i, POS_MIN, 0, 1, 0, b) {
+                       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));
+                       }
+               }
+
+               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,
-                                                 b->written << 9);
+                                                 btree_bytes(c));
                }
-               bch2_btree_iter_unlock(&iter);
+               bch2_trans_exit(&trans);
        }
 
        qcow2_write_image(ca->disk_sb.bdev->bd_fd, fd, &data,
@@ -89,11 +112,12 @@ int cmd_dump(int argc, char *argv[])
        int fd, opt;
 
        opt_set(opts, nochanges,        true);
-       opt_set(opts, noreplay,         true);
+       opt_set(opts, norecovery,       true);
        opt_set(opts, degraded,         true);
-       opt_set(opts, errors,           BCH_ON_ERROR_CONTINUE);
+       opt_set(opts, errors,           BCH_ON_ERROR_continue);
+       opt_set(opts, fix_errors,       FSCK_OPT_YES);
 
-       while ((opt = getopt(argc, argv, "o:fh")) != -1)
+       while ((opt = getopt(argc, argv, "o:fvh")) != -1)
                switch (opt) {
                case 'o':
                        out = optarg;
@@ -101,6 +125,9 @@ int cmd_dump(int argc, char *argv[])
                case 'f':
                        force = true;
                        break;
+               case 'v':
+                       opt_set(opts, verbose, true);
+                       break;
                case 'h':
                        dump_usage();
                        exit(EXIT_SUCCESS);
@@ -152,84 +179,212 @@ int cmd_dump(int argc, char *argv[])
 static void list_keys(struct bch_fs *c, enum btree_id btree_id,
                      struct bpos start, struct bpos end)
 {
-       struct btree_iter iter;
+       struct btree_trans trans;
+       struct btree_iter *iter;
        struct bkey_s_c k;
        char buf[512];
+       int ret;
 
-       for_each_btree_key(&iter, c, btree_id, start,
-                          BTREE_ITER_PREFETCH, k) {
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_key(&trans, iter, btree_id, start,
+                          BTREE_ITER_PREFETCH, k, ret) {
                if (bkey_cmp(k.k->p, end) > 0)
                        break;
 
-               bch2_bkey_val_to_text(c, bkey_type(0, btree_id),
-                                     buf, sizeof(buf), k);
+               bch2_bkey_val_to_text(&PBUF(buf), c, k);
                puts(buf);
        }
-       bch2_btree_iter_unlock(&iter);
+       bch2_trans_exit(&trans);
 }
 
 static void list_btree_formats(struct bch_fs *c, enum btree_id btree_id,
                               struct bpos start, struct bpos end)
 {
-       struct btree_iter iter;
+       struct btree_trans trans;
+       struct btree_iter *iter;
        struct btree *b;
        char buf[4096];
 
-       for_each_btree_node(&iter, c, btree_id, start, 0, b) {
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
                if (bkey_cmp(b->key.k.p, end) > 0)
                        break;
 
-               bch2_print_btree_node(c, b, buf, sizeof(buf));
+               bch2_btree_node_to_text(&PBUF(buf), c, b);
                puts(buf);
        }
-       bch2_btree_iter_unlock(&iter);
+       bch2_trans_exit(&trans);
 }
 
-static void list_nodes_keys(struct bch_fs *c, enum btree_id btree_id,
+static void list_nodes(struct bch_fs *c, enum btree_id btree_id,
                            struct bpos start, struct bpos end)
 {
-       struct btree_iter iter;
-       struct btree_node_iter node_iter;
-       struct bkey unpacked;
-       struct bkey_s_c k;
+       struct btree_trans trans;
+       struct btree_iter *iter;
        struct btree *b;
        char buf[4096];
 
-       for_each_btree_node(&iter, c, btree_id, start, 0, b) {
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
                if (bkey_cmp(b->key.k.p, end) > 0)
                        break;
 
-               bch2_print_btree_node(c, b, buf, sizeof(buf));
+               bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(&b->key));
                fputs(buf, stdout);
+               putchar('\n');
+       }
+       bch2_trans_exit(&trans);
+}
 
-               buf[0] = '\t';
+static void print_node_ondisk(struct bch_fs *c, struct btree *b)
+{
+       struct btree_node *n_ondisk;
+       struct extent_ptr_decoded pick;
+       struct bch_dev *ca;
+       struct bio *bio;
+       unsigned offset = 0;
 
-               for_each_btree_node_key_unpack(b, k, &node_iter, &unpacked) {
-                       bch2_bkey_val_to_text(c, bkey_type(0, btree_id),
-                                             buf + 1, sizeof(buf) - 1, k);
-                       puts(buf);
+       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;
+       }
+
+       ca = bch_dev_bkey_exists(c, pick.ptr.dev);
+       if (!bch2_dev_get_ioref(ca, READ)) {
+               printf("error getting device to read from\n");
+               return;
+       }
+
+       n_ondisk = malloc(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->bi_iter.bi_sector  = pick.ptr.offset;
+       bch2_bio_map(bio, n_ondisk, btree_bytes(c));
+
+       submit_bio_wait(bio);
+
+       bio_put(bio);
+       percpu_ref_put(&ca->io_ref);
+
+       while (offset < c->opts.btree_node_size) {
+               struct bset *i;
+               struct nonce nonce;
+               struct bch_csum csum;
+               struct bkey_packed *k;
+               unsigned sectors;
+
+               if (!offset) {
+                       i = &n_ondisk->keys;
+
+                       if (!bch2_checksum_type_valid(c, BSET_CSUM_TYPE(i)))
+                               die("unknown checksum type");
+
+                       nonce = btree_nonce(i, offset << 9);
+                       csum = csum_vstruct(c, BSET_CSUM_TYPE(i), nonce, n_ondisk);
+
+                       if (bch2_crc_cmp(csum, n_ondisk->csum))
+                               die("invalid checksum\n");
+
+                       bset_encrypt(c, i, offset << 9);
+
+                       sectors = vstruct_sectors(n_ondisk, c->block_bits);
+               } else {
+                       struct btree_node_entry *bne = (void *) n_ondisk + (offset << 9);
+
+                       i = &bne->keys;
+
+                       if (i->seq != n_ondisk->keys.seq)
+                               break;
+
+                       if (!bch2_checksum_type_valid(c, BSET_CSUM_TYPE(i)))
+                               die("unknown checksum type");
+
+                       nonce = btree_nonce(i, offset << 9);
+                       csum = csum_vstruct(c, BSET_CSUM_TYPE(i), nonce, bne);
+
+                       if (bch2_crc_cmp(csum, bne->csum))
+                               die("invalid checksum");
+
+                       bset_encrypt(c, i, offset << 9);
+
+                       sectors = vstruct_sectors(bne, c->block_bits);
+               }
+
+               fprintf(stdout, "  offset %u version %u, journal seq %llu\n",
+                       offset,
+                       le16_to_cpu(i->version),
+                       le64_to_cpu(i->journal_seq));
+               offset += sectors;
+
+               for (k = i->start; k != vstruct_last(i); k = bkey_next(k)) {
+                       struct bkey u;
+                       char buf[4096];
+
+                       bch2_bkey_val_to_text(&PBUF(buf), c, bkey_disassemble(b, k, &u));
+                       fprintf(stdout, "    %s\n", buf);
                }
        }
-       bch2_btree_iter_unlock(&iter);
+
+       free(n_ondisk);
 }
 
-static struct bpos parse_pos(char *buf)
+static void list_nodes_ondisk(struct bch_fs *c, enum btree_id btree_id,
+                             struct bpos start, struct bpos end)
 {
-       char *s = buf, *field;
-       u64 inode_v = 0, offset_v = 0;
+       struct btree_trans trans;
+       struct btree_iter *iter;
+       struct btree *b;
+       char buf[4096];
 
-       if (!(field = strsep(&s, ":")) ||
-           kstrtoull(field, 10, &inode_v))
-               die("invalid bpos %s", buf);
+       bch2_trans_init(&trans, c, 0, 0);
 
-       if ((field = strsep(&s, ":")) &&
-           kstrtoull(field, 10, &offset_v))
-               die("invalid bpos %s", buf);
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
+               if (bkey_cmp(b->key.k.p, end) > 0)
+                       break;
 
-       if (s)
-               die("invalid bpos %s", buf);
+               bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(&b->key));
+               fputs(buf, stdout);
+               putchar('\n');
 
-       return (struct bpos) { .inode = inode_v, .offset = offset_v };
+               print_node_ondisk(c, b);
+       }
+       bch2_trans_exit(&trans);
+}
+
+static void list_nodes_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 btree_node_iter node_iter;
+       struct bkey unpacked;
+       struct bkey_s_c k;
+       struct btree *b;
+       char buf[4096];
+
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
+               if (bkey_cmp(b->key.k.p, end) > 0)
+                       break;
+
+               bch2_btree_node_to_text(&PBUF(buf), c, b);
+               fputs(buf, stdout);
+
+               for_each_btree_node_key_unpack(b, k, &node_iter, &unpacked) {
+                       bch2_bkey_val_to_text(&PBUF(buf), c, k);
+                       putchar('\t');
+                       puts(buf);
+               }
+       }
+       bch2_trans_exit(&trans);
 }
 
 static void list_keys_usage(void)
@@ -253,13 +408,17 @@ static const char * const list_modes[] = {
        "keys",
        "formats",
        "nodes",
+       "nodes_ondisk",
+       "nodes_keys",
        NULL
 };
 
 int cmd_list(int argc, char *argv[])
 {
        struct bch_opts opts = bch2_opts_empty();
-       enum btree_id btree_id = BTREE_ID_EXTENTS;
+       enum btree_id btree_id_start    = 0;
+       enum btree_id btree_id_end      = BTREE_ID_NR;
+       enum btree_id btree_id;
        struct bpos start = POS_MIN, end = POS_MAX;
        u64 inum;
        int mode = 0, opt;
@@ -267,19 +426,20 @@ int cmd_list(int argc, char *argv[])
        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, errors,           BCH_ON_ERROR_continue);
 
        while ((opt = getopt(argc, argv, "b:s:e:i:m:fvh")) != -1)
                switch (opt) {
                case 'b':
-                       btree_id = read_string_list_or_die(optarg,
+                       btree_id_start = read_string_list_or_die(optarg,
                                                bch2_btree_ids, "btree id");
+                       btree_id_end = btree_id_start + 1;
                        break;
                case 's':
-                       start   = parse_pos(optarg);
+                       start   = bpos_parse(optarg);
                        break;
                case 'e':
-                       end     = parse_pos(optarg);
+                       end     = bpos_parse(optarg);
                        break;
                case 'i':
                        if (kstrtoull(optarg, 10, &inum))
@@ -296,7 +456,7 @@ int cmd_list(int argc, char *argv[])
                        opt_set(opts, norecovery, false);
                        break;
                case 'v':
-                       opt_set(opts, verbose_recovery, true);
+                       opt_set(opts, verbose, true);
                        break;
                case 'h':
                        list_keys_usage();
@@ -311,18 +471,100 @@ int cmd_list(int argc, char *argv[])
        if (IS_ERR(c))
                die("error opening %s: %s", argv[0], strerror(-PTR_ERR(c)));
 
-       switch (mode) {
-       case 0:
-               list_keys(c, btree_id, start, end);
-               break;
-       case 1:
-               list_btree_formats(c, btree_id, start, end);
-               break;
-       case 2:
-               list_nodes_keys(c, btree_id, start, end);
-               break;
-       default:
-               die("Invalid mode");
+
+       for (btree_id = btree_id_start;
+            btree_id < btree_id_end;
+            btree_id++) {
+               switch (mode) {
+               case 0:
+                       list_keys(c, btree_id, start, end);
+                       break;
+               case 1:
+                       list_btree_formats(c, btree_id, start, end);
+                       break;
+               case 2:
+                       list_nodes(c, btree_id, start, end);
+                       break;
+               case 3:
+                       list_nodes_ondisk(c, btree_id, start, end);
+                       break;
+               case 4:
+                       list_nodes_keys(c, btree_id, start, end);
+                       break;
+               default:
+                       die("Invalid mode");
+               }
+       }
+
+       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;
+       struct bkey_i *k, *_n;
+
+       /* This could be greatly expanded: */
+
+       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));
+
+               for_each_jset_key(k, _n, entry, &p->j) {
+                       char buf[200];
+
+                       bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(k));
+                       printf("btree %s l %u: %s\n",
+                              bch2_btree_ids[entry->btree_id],
+                              entry->level,
+                              buf);
+               }
        }
 
        bch2_fs_stop(c);