unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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bcachefs: Move transaction commit path validation to as late as possible

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In order to check for accounting keys with version=0, we need to run
validation after they've been assigned version numbers.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-09-26 16:50:29 -04:00
parent 431312b59c
commit 7c980a43e9
1 changed files with 34 additions and 34 deletions
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68
fs/bcachefs/btree_trans_commit.c
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@ -735,6 +735,40 @@ bch2_trans_commit_write_locked(struct btree_trans *trans, unsigned flags,
goto fatal_err;
}
trans_for_each_update(trans, i) {
enum bch_validate_flags invalid_flags = 0;
if (!(flags & BCH_TRANS_COMMIT_no_journal_res))
invalid_flags |= BCH_VALIDATE_write|BCH_VALIDATE_commit;
ret = bch2_bkey_validate(c, bkey_i_to_s_c(i->k),
i->bkey_type, invalid_flags);
if (unlikely(ret)){
bch2_trans_inconsistent(trans, "invalid bkey on insert from %s -> %ps\n",
trans->fn, (void *) i->ip_allocated);
goto fatal_err;
}
btree_insert_entry_checks(trans, i);
}
for (struct jset_entry *i = trans->journal_entries;
i != (void *) ((u64 *) trans->journal_entries + trans->journal_entries_u64s);
i = vstruct_next(i)) {
enum bch_validate_flags invalid_flags = 0;
if (!(flags & BCH_TRANS_COMMIT_no_journal_res))
invalid_flags |= BCH_VALIDATE_write|BCH_VALIDATE_commit;
ret = bch2_journal_entry_validate(c, NULL, i,
bcachefs_metadata_version_current,
CPU_BIG_ENDIAN, invalid_flags);
if (unlikely(ret)) {
bch2_trans_inconsistent(trans, "invalid journal entry on insert from %s\n",
trans->fn);
goto fatal_err;
}
}
if (likely(!(flags & BCH_TRANS_COMMIT_no_journal_res))) {
struct journal *j = &c->journal;
struct jset_entry *entry;
@ -1019,40 +1053,6 @@ int __bch2_trans_commit(struct btree_trans *trans, unsigned flags)
if (ret)
goto out_reset;
trans_for_each_update(trans, i) {
enum bch_validate_flags invalid_flags = 0;
if (!(flags & BCH_TRANS_COMMIT_no_journal_res))
invalid_flags |= BCH_VALIDATE_write|BCH_VALIDATE_commit;
ret = bch2_bkey_validate(c, bkey_i_to_s_c(i->k),
i->bkey_type, invalid_flags);
if (unlikely(ret)){
bch2_trans_inconsistent(trans, "invalid bkey on insert from %s -> %ps\n",
trans->fn, (void *) i->ip_allocated);
return ret;
}
btree_insert_entry_checks(trans, i);
}
for (struct jset_entry *i = trans->journal_entries;
i != (void *) ((u64 *) trans->journal_entries + trans->journal_entries_u64s);
i = vstruct_next(i)) {
enum bch_validate_flags invalid_flags = 0;
if (!(flags & BCH_TRANS_COMMIT_no_journal_res))
invalid_flags |= BCH_VALIDATE_write|BCH_VALIDATE_commit;
ret = bch2_journal_entry_validate(c, NULL, i,
bcachefs_metadata_version_current,
CPU_BIG_ENDIAN, invalid_flags);
if (unlikely(ret)) {
bch2_trans_inconsistent(trans, "invalid journal entry on insert from %s\n",
trans->fn);
return ret;
}
}
if (unlikely(!test_bit(BCH_FS_may_go_rw, &c->flags))) {
ret = do_bch2_trans_commit_to_journal_replay(trans);
goto out_reset;