[PATCH 00/11] btrfs: add snapshot_id to btrfs_header and root_item

[Josef Bacik <josef@toxicpanda.com>]

Hello,

This is the next series of changes for extent tree v2.  This adds support for
the snapshot_id to the btrfs_header and btrfs_root_item.  This will allow us to
track shared blocks more simply without requiring a lot of reference updates.

There are also a few extra patches tacked onto the end to add some more testing.
Since we're changing the size of the btrfs_header I wanted to get as much
coverage as possible on the different ways we modify leaves and nodes so I added
another selftest and added support for running the selftests with extent tree v2
set.

Thanks,

Josef

Josef Bacik (11):
  btrfs: take into account BTRFS_HEADER_FLAG_V2 in the item/node helpers
  btrfs: add global_tree_id to btrfs_root_item
  btrfs: add snapshot_id to the btrfs_root_item
  btrfs: handle the new snapshot_id field properly
  btrfs: add a sanity checker for the header flags
  btrfs: zero dummy extent buffers
  btrfs: zero out temporary superblock buffer header
  btrfs: add a debug range check for header_v2
  btrfs: selftests: add a test for delete_one_dir_name
  btrfs: don't do the global_id thing if we are a DUMMY_FS_INFO
  btrfs: selftests: run with EXTENT_TREE_V2 set as well

 fs/btrfs/ctree.c                       |  13 +-
 fs/btrfs/ctree.h                       |  14 +-
 fs/btrfs/disk-io.c                     |   4 +
 fs/btrfs/extent-tree.c                 |   7 +
 fs/btrfs/extent_io.c                   |  22 +++
 fs/btrfs/tests/btrfs-tests.c           |  77 +++++++----
 fs/btrfs/tests/btrfs-tests.h           |  18 ++-
 fs/btrfs/tests/extent-buffer-tests.c   | 181 ++++++++++++++++++++++++-
 fs/btrfs/tests/extent-io-tests.c       |   9 +-
 fs/btrfs/tests/extent-map-tests.c      |   2 +-
 fs/btrfs/tests/free-space-tests.c      |   6 +-
 fs/btrfs/tests/free-space-tree-tests.c |  21 +--
 fs/btrfs/tests/inode-tests.c           |  25 ++--
 fs/btrfs/tests/qgroup-tests.c          |   5 +-
 fs/btrfs/tree-checker.c                |  27 ++++
 fs/btrfs/volumes.c                     |   2 +
 include/uapi/linux/btrfs_tree.h        |  12 +-
 17 files changed, 376 insertions(+), 69 deletions(-)

-- 
2.26.3