[PATCH 00/20] Error handling fixes

[David Sterba <dsterba@suse.com>]

Get rid of some easy BUG_ONs, there are a few groups fixing the same
pattern. At the end there are three patches that move transaction abort
to the right place. I have tested it on my setups only, not the CI, but
given the type of fix we'd never hit any of them without special
instrumentation.

David Sterba (20):
  btrfs: handle directory and dentry mismatch in btrfs_may_delete()
  btrfs: handle invalid range and start in merge_extent_mapping()
  btrfs: handle block group lookup error when it's being removed
  btrfs: handle root deletion lookup error in btrfs_del_root()
  btrfs: handle invalid root reference found in btrfs_find_root()
  btrfs: handle invalid root reference found in btrfs_init_root_free_objectid()
  btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()
  btrfs: handle invalid extent item reference found in check_committed_ref()
  btrfs: export: handle invalid inode or root reference in btrfs_get_parent()
  btrfs: delayed-inode: drop pointless BUG_ON in __btrfs_remove_delayed_item()
  btrfs: change BUG_ON to assertion when checking for delayed_node root
  btrfs: defrag: change BUG_ON to assertion in btrfs_defrag_leaves()
  btrfs: change BUG_ON to assertion in btrfs_read_roots()
  btrfs: change BUG_ON to assertion when verifying lockdep class setup
  btrfs: change BUG_ON to assertion when verifying root in btrfs_alloc_reserved_file_extent()
  btrfs: change BUG_ON to assertion in reset_balance_state()
  btrfs: unify handling of return values of btrfs_insert_empty_items()
  btrfs: move transaction abort to the error site in btrfs_delete_free_space_tree()
  btrfs: move transaction abort to the error site in btrfs_create_free_space_tree()
  btrfs: move transaction abort to the error site btrfs_rebuild_free_space_tree()

 fs/btrfs/block-group.c     |  4 ++-
 fs/btrfs/ctree.c           |  4 +++
 fs/btrfs/defrag.c          |  2 +-
 fs/btrfs/delayed-inode.c   |  4 +--
 fs/btrfs/disk-io.c         | 11 ++++++--
 fs/btrfs/export.c          |  9 +++++-
 fs/btrfs/extent-tree.c     | 11 ++++++--
 fs/btrfs/extent_map.c      |  9 +++---
 fs/btrfs/file-item.c       |  3 --
 fs/btrfs/free-space-tree.c | 56 ++++++++++++++++++++++----------------
 fs/btrfs/ioctl.c           |  4 ++-
 fs/btrfs/locking.c         |  2 +-
 fs/btrfs/root-tree.c       | 16 +++++++++--
 fs/btrfs/uuid-tree.c       |  2 +-
 fs/btrfs/volumes.c         | 14 ++++++++--
 15 files changed, 102 insertions(+), 49 deletions(-)

-- 
2.42.1