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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-07 00:23:25 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-03-13 21:22:24 -0400 |
| commit | f4e68c859f4e335f0b07dfcc6703cfe501265deb (patch) | |
| tree | ca2480f0c311e460a48a050b3b9178bf13476541 | |
| parent | ea27001e14e963547df6ae60edc70332fcd02c37 (diff) | |
| download | vfs-f4e68c859f4e335f0b07dfcc6703cfe501265deb.tar.gz | |
bcachefs: check inode->bi_parent_subvol against dirent
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | fs/bcachefs/fsck.c | 35 | ||||
| -rw-r--r-- | fs/bcachefs/sb-errors_types.h | 2 |
2 files changed, 14 insertions, 23 deletions
diff --git a/fs/bcachefs/fsck.c b/fs/bcachefs/fsck.c index 9069701028a96..fafce6bffff23 100644 --- a/fs/bcachefs/fsck.c +++ b/fs/bcachefs/fsck.c @@ -1012,7 +1012,7 @@ static int check_inode(struct btree_trans *trans, if (fsck_err_on(u.bi_parent_subvol && (u.bi_subvol == 0 || u.bi_subvol == BCACHEFS_ROOT_SUBVOL), - c, inode_bi_parent_subvol_nonzero, + c, inode_bi_parent_nonzero, "inode %llu:%u has subvol %u but nonzero parent subvol %u", u.bi_inum, k.k->p.snapshot, u.bi_subvol, u.bi_parent_subvol)) { u.bi_parent_subvol = 0; @@ -1685,27 +1685,6 @@ static int check_dirent_target(struct btree_trans *trans, d = dirent_i_to_s_c(n); } - - if (fsck_err_on(d.v->d_type == DT_SUBVOL && - target->bi_parent_subvol != le32_to_cpu(d.v->d_parent_subvol), - c, dirent_d_parent_subvol_wrong, - "dirent has wrong d_parent_subvol field: got %u, should be %u", - le32_to_cpu(d.v->d_parent_subvol), - target->bi_parent_subvol)) { - n = bch2_trans_kmalloc(trans, bkey_bytes(d.k)); - ret = PTR_ERR_OR_ZERO(n); - if (ret) - goto err; - - bkey_reassemble(&n->k_i, d.s_c); - n->v.d_parent_subvol = cpu_to_le32(target->bi_parent_subvol); - - ret = bch2_trans_update(trans, iter, &n->k_i, 0); - if (ret) - goto err; - - d = dirent_i_to_s_c(n); - } err: fsck_err: printbuf_exit(&buf); @@ -1718,6 +1697,7 @@ static int check_dirent_to_subvol(struct btree_trans *trans, struct btree_iter * { struct bch_fs *c = trans->c; struct bch_inode_unpacked subvol_root; + u32 parent_subvol = le32_to_cpu(d.v->d_parent_subvol); u32 target_subvol = le32_to_cpu(d.v->d_child_subvol); u32 target_snapshot; u64 target_inum; @@ -1738,6 +1718,17 @@ static int check_dirent_to_subvol(struct btree_trans *trans, struct btree_iter * if (ret && !bch2_err_matches(ret, ENOENT)) return ret; + if (fsck_err_on(parent_subvol != subvol_root.bi_parent_subvol, + c, inode_bi_parent_wrong, + "subvol root %llu has wrong bi_parent_subvol: got %u, should be %u", + target_inum, + subvol_root.bi_parent_subvol, parent_subvol)) { + subvol_root.bi_parent_subvol = parent_subvol; + ret = __bch2_fsck_write_inode(trans, &subvol_root, target_snapshot); + if (ret) + return ret; + } + ret = check_dirent_target(trans, iter, d, &subvol_root, target_snapshot); if (ret) diff --git a/fs/bcachefs/sb-errors_types.h b/fs/bcachefs/sb-errors_types.h index 2c998e721d900..5178bf579f7c5 100644 --- a/fs/bcachefs/sb-errors_types.h +++ b/fs/bcachefs/sb-errors_types.h @@ -231,7 +231,7 @@ x(dirent_name_dot_or_dotdot, 223) \ x(dirent_name_has_slash, 224) \ x(dirent_d_type_wrong, 225) \ - x(dirent_d_parent_subvol_wrong, 226) \ + x(inode_bi_parent_wrong, 226) \ x(dirent_in_missing_dir_inode, 227) \ x(dirent_in_non_dir_inode, 228) \ x(dirent_to_missing_inode, 229) \ |