diff options
Diffstat (limited to 'fs/btrfs/ctree.c')
| -rw-r--r-- | fs/btrfs/ctree.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 3b16051b121..5697705f753 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -114,6 +114,9 @@ static int __btrfs_cow_block(struct btrfs_trans_handle *trans, } else { btrfs_set_node_blockptr(parent, parent_slot, cow->start); + WARN_ON(trans->transid == 0); + btrfs_set_node_ptr_generation(parent, parent_slot, + trans->transid); btrfs_mark_buffer_dirty(parent); WARN_ON(btrfs_header_generation(parent) != trans->transid); btrfs_free_extent(trans, root, buf->start, buf->len, 1); @@ -967,6 +970,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root { struct extent_buffer *b; u64 bytenr; + u64 ptr_gen; int slot; int ret; int level; @@ -1031,10 +1035,18 @@ again: if (level == lowest_level) break; bytenr = btrfs_node_blockptr(b, slot); + ptr_gen = btrfs_node_ptr_generation(b, slot); if (should_reada) reada_for_search(root, p, level, slot); b = read_tree_block(root, bytenr, btrfs_level_size(root, level - 1)); + if (ptr_gen != btrfs_header_generation(b)) { + printk("block %llu bad gen wanted %llu " + "found %llu\n", + (unsigned long long)b->start, + (unsigned long long)ptr_gen, + (unsigned long long)btrfs_header_generation(b)); + } } else { p->slots[level] = slot; if (ins_len > 0 && btrfs_leaf_free_space(root, b) < @@ -1218,6 +1230,8 @@ static int insert_new_root(struct btrfs_trans_handle *trans, btrfs_node_key(lower, &lower_key, 0); btrfs_set_node_key(c, &lower_key, 0); btrfs_set_node_blockptr(c, 0, lower->start); + WARN_ON(btrfs_header_generation(lower) == 0); + btrfs_set_node_ptr_generation(c, 0, btrfs_header_generation(lower)); btrfs_mark_buffer_dirty(c); @@ -1261,6 +1275,8 @@ static int insert_ptr(struct btrfs_trans_handle *trans, struct btrfs_root } btrfs_set_node_key(lower, key, slot); btrfs_set_node_blockptr(lower, slot, bytenr); + WARN_ON(trans->transid == 0); + btrfs_set_node_ptr_generation(lower, slot, trans->transid); btrfs_set_header_nritems(lower, nritems + 1); btrfs_mark_buffer_dirty(lower); return 0; |