[PATCH 00/15] Add delayed-refs support to btrfs-progs

[Nikolay Borisov <nborisov@suse.com>]

Hello,                                                                          
                                                                                
Here is a series which adds support for delayed refs. This is needed to enable  
later work on adding freespace tree repair code. Additionally, it results in  
more code sharing between kernel/user space.

Patches 1-9 are simple prep patches removing some arguments, causing problems
later. They can go independently of the delayed refs work. They don't introduce
any functional changes. Next, patches 10-13 introduce the needed infrastructure
to for delayed refs without actually activating it. Patch 14 finally wires it
up by adding the necessary call outs to btrfs_run_delayed refs and reworking the
extent addition/freeing functions. With all of this done, patch 15 finally
removes the old code.

This series passes all btrfs progs fsck and misc tests + fuzz tests apart from
fuzz-003/007/009 - but those fail without this series so it's unlikely it's
caused by it.

Nikolay Borisov (15):
  btrfs-progs: Remove root argument from pin_down_bytes
  btrfs-progs: Remove root argument from btrfs_del_csums
  btrfs-progs: Add functions to modify the used space by a root
  btrfs-progs: Refactor the root used bytes are updated
  btrfs-progs: Make update_block_group take fs_info instead of root
  btrfs-progs: check: Drop trans/root arguments from free_extent_hook
  btrfs-progs: Remove root argument from __free_extent
  btrfs-progs: Remove root argument from alloc_reserved_tree_block
  btrfs-progs: Always pass 0 for offset when calling btrfs_free_extent
    for btree blocks.
  btrfs-progs: Add boolean to signal whether we are re-initing extent
    tree
  btrfs-progs: Add delayed refs infrastructure
  btrfs-progs: Add __free_extent2 function
  btrfs-progs: Add alloc_reserved_tree_block2 function
  btrfs-progs: Wire up delayed refs
  btrfs-progs: Remove old delayed refs infrastructure

 Makefile              |   3 +-
 btrfs-corrupt-block.c |   2 +-
 check/main.c          |   8 +-
 ctree.c               |  29 ++-
 ctree.h               |  11 +-
 delayed-ref.c         | 608 ++++++++++++++++++++++++++++++++++++++++++++++++++
 delayed-ref.h         | 225 +++++++++++++++++++
 extent-tree.c         | 604 +++++++++++++++++++++++++++++--------------------
 file-item.c           |  20 +-
 kerncompat.h          |   8 +
 transaction.c         |  25 +++
 transaction.h         |   5 +
 12 files changed, 1280 insertions(+), 268 deletions(-)
 create mode 100644 delayed-ref.c
 create mode 100644 delayed-ref.h

-- 
2.7.4