[GIT PULL] Btrfs fixes for 5.9-rc4

[David Sterba]

Hi,

two small fixes and a bunch of lockdep fixes for warnings that show up
with an upcoming tree locking update but are valid with current locks as
well.  Please pull, thanks.

* fix bug in free space bitmap/extent switch logic

* several lockdep warning fixes

* clarify tree-checker error message

----------------------------------------------------------------
The following changes since commit a84d5d429f9eb56f81b388609841ed993f0ddfca:

  btrfs: detect nocow for swap after snapshot delete (2020-08-21 12:21:23 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.9-rc3-tag

for you to fetch changes up to f96d6960abbc52e26ad124e69e6815283d3e1674:

  btrfs: tree-checker: fix the error message for transid error (2020-08-27 14:16:05 +0200)

----------------------------------------------------------------
Josef Bacik (5):
      btrfs: drop path before adding new uuid tree entry
      btrfs: fix potential deadlock in the search ioctl
      btrfs: allocate scrub workqueues outside of locks
      btrfs: set the correct lockdep class for new nodes
      btrfs: set the lockdep class for log tree extent buffers

Marcos Paulo de Souza (1):
      btrfs: block-group: fix free-space bitmap threshold

Qu Wenruo (1):
      btrfs: tree-checker: fix the error message for transid error

 fs/btrfs/block-group.c     |   4 +-
 fs/btrfs/ctree.c           |   6 ++-
 fs/btrfs/extent-tree.c     |   2 +-
 fs/btrfs/extent_io.c       |   8 +--
 fs/btrfs/extent_io.h       |   6 +--
 fs/btrfs/free-space-tree.c |   4 ++
 fs/btrfs/ioctl.c           |  27 +++++++---
 fs/btrfs/scrub.c           | 122 ++++++++++++++++++++++++++-------------------
 fs/btrfs/tree-checker.c    |   2 +-
 fs/btrfs/volumes.c         |   3 +-
 10 files changed, 113 insertions(+), 71 deletions(-)