[GIT PULL] Btrfs fixes for 5.11-rc6

[David Sterba <dsterba@suse.com>]

Hi,

I'm not sure the first post of this pull request made it through so
sending again.

A few more fixes for a late rc:

- fix lockdep complaint on 32bit arches and also remove an unsafe memory
  use due to device vs filesystem lifetime

- two fixes for free space tree
  - race during log replay and cache rebuild, now more likely to happen
    due to changes in this dev cycle
  - possible free space tree corruption with online conversion during
    initial tree population

Please pull, thanks.

----------------------------------------------------------------
The following changes since commit 34d1eb0e599875064955a74712f08ff14c8e3d5f:

  btrfs: don't clear ret in btrfs_start_dirty_block_groups (2021-01-18 16:00:11 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.11-rc5-tag

for you to fetch changes up to 9ad6d91f056b99dbe59a262810cb342519ea8d39:

  btrfs: fix log replay failure due to race with space cache rebuild (2021-01-25 18:44:53 +0100)

----------------------------------------------------------------
Filipe Manana (1):
      btrfs: fix log replay failure due to race with space cache rebuild

Josef Bacik (1):
      btrfs: fix possible free space tree corruption with online conversion

Su Yue (1):
      btrfs: fix lockdep warning due to seqcount_mutex on 32bit arch

 fs/btrfs/block-group.c     | 10 +++++++-
 fs/btrfs/ctree.h           |  3 +++
 fs/btrfs/extent-tree.c     | 61 ++++++++++++++--------------------------------
 fs/btrfs/free-space-tree.c | 10 +++++++-
 fs/btrfs/volumes.c         |  2 +-
 fs/btrfs/volumes.h         | 11 +++++----
 6 files changed, 46 insertions(+), 51 deletions(-)