[GIT PULL] Btrfs fixes for 5.8-rc5

[David Sterba <dsterba@suse.com>]

Hi,

please pull the following fixes, thanks.

- regression fix of a leak in global block reserve accounting

- fix a (hard to hit) race of readahead vs releasepage that could lead
  to crash

- convert all remaining uses of comment fall through annotations to the
  pseudo keyword

- fix crash when mounting a fuzzed image with -o recovery

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The following changes since commit b091f7fede97cc64f7aaad3eeb37965aebee3082:

  btrfs: use kfree() in btrfs_ioctl_get_subvol_info() (2020-06-16 19:24:03 +0200)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.8-rc4-tag

for you to fetch changes up to 0465337c5599bbe360cdcff452992a1a6b7ed2d4:

  btrfs: reset tree root pointer after error in init_tree_roots (2020-07-02 10:27:12 +0200)

----------------------------------------------------------------
Boris Burkov (1):
      btrfs: fix fatal extent_buffer readahead vs releasepage race

Filipe Manana (1):
      btrfs: fix reclaim_size counter leak after stealing from global reserve

Josef Bacik (1):
      btrfs: reset tree root pointer after error in init_tree_roots

Marcos Paulo de Souza (1):
      btrfs: convert comments to fallthrough annotations

 fs/btrfs/ctree.c      |  2 +-
 fs/btrfs/disk-io.c    |  6 ++++--
 fs/btrfs/extent_io.c  | 40 ++++++++++++++++++++++++----------------
 fs/btrfs/ref-verify.c |  2 +-
 fs/btrfs/space-info.c |  2 +-
 fs/btrfs/super.c      |  6 +++---
 fs/btrfs/volumes.h    |  2 +-
 7 files changed, 35 insertions(+), 25 deletions(-)