[GIT PULL] Btrfs fixes for 6.1-rc2

[David Sterba]

Hi,

please pull the following fixes, thanks.

- fiemap fixes:
  - add missing path cache update
  - fix processing of delayed data and tree refs during backref walking,
    this could lead to reporting incorrect extent sharing

- fix extent range locking under heavy contention to avoid deadlocks

- make it possible to test send v3 in debugging mode

- update links in MAINTAINERS

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The following changes since commit cbddcc4fa3443fe8cfb2ff8e210deb1f6a0eea38:

  btrfs: set generation before calling btrfs_clean_tree_block in btrfs_init_new_buffer (2022-09-29 17:08:31 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-6.1-rc1-tag

for you to fetch changes up to 4efb365a3f04d0bee7833f168b0b00a15edefeac:

  MAINTAINERS: update btrfs website links and files (2022-10-14 13:54:21 +0200)

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Boris Burkov (1):
      btrfs: send: allow protocol version 3 with CONFIG_BTRFS_DEBUG

David Sterba (3):
      btrfs: send: update command for protocol version check
      btrfs: delete stale comments after merge conflict resolution
      MAINTAINERS: update btrfs website links and files

Filipe Manana (4):
      btrfs: add missing path cache update during fiemap
      btrfs: fix processing of delayed data refs during backref walking
      btrfs: fix processing of delayed tree block refs during backref walking
      btrfs: ignore fiemap path cache if we have multiple leaves for a data extent

Josef Bacik (1):
      btrfs: unlock locked extent area if we have contention

 MAINTAINERS               |  6 ++--
 fs/btrfs/backref.c        | 84 ++++++++++++++++++++++++++++++++++++++---------
 fs/btrfs/backref.h        |  1 +
 fs/btrfs/block-group.c    |  2 --
 fs/btrfs/extent-io-tree.c | 15 +++++----
 fs/btrfs/send.c           |  5 ++-
 fs/btrfs/send.h           |  5 +++
 7 files changed, 91 insertions(+), 27 deletions(-)