[GIT PULL] Btrfs fixes for 6.8-rc5

[David Sterba <dsterba@suse.com>]

Hi,

a few regular fixes and one fix for space reservation regression since
6.7 that users have been reporting.

Please pull, thanks.

- fix over-reservation of metadata chunks due to not keeping proper balance
  between global block reserve and delayed refs reserve;
  in practice this leaves behind empty metadata block groups, the workaround
  is to reclaim them by using the '-musage=1' balance filter

- other space reservation fixes:
  - do not delete unused block group if it may be used soon
  - do not reserve space for checksums for NOCOW files

- fix extent map assertion failure when writing out free space inode

- reject encoded write if inode has nodatasum flag set

- fix chunk map leak when loading block group zone info

----------------------------------------------------------------
The following changes since commit e03ee2fe873eb68c1f9ba5112fee70303ebf9dfb:

  btrfs: do not ASSERT() if the newly created subvolume already got read (2024-01-31 08:42:53 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git tags/for-6.8-rc4-tag

for you to fetch changes up to 2f6397e448e689adf57e6788c90f913abd7e1af8:

  btrfs: don't refill whole delayed refs block reserve when starting transaction (2024-02-13 18:39:09 +0100)

----------------------------------------------------------------
Filipe Manana (7):
      btrfs: add and use helper to check if block group is used
      btrfs: do not delete unused block group if it may be used soon
      btrfs: add new unused block groups to the list of unused block groups
      btrfs: don't reserve space for checksums when writing to nocow files
      btrfs: reject encoded write if inode has nodatasum flag set
      btrfs: zoned: fix chunk map leak when loading block group zone info
      btrfs: don't refill whole delayed refs block reserve when starting transaction

Josef Bacik (1):
      btrfs: don't drop extent_map for free space inode on write error

 fs/btrfs/block-group.c    | 80 +++++++++++++++++++++++++++++++++++++++++++++--
 fs/btrfs/block-group.h    |  7 +++++
 fs/btrfs/delalloc-space.c | 29 +++++++++++------
 fs/btrfs/inode.c          | 26 +++++++++++++--
 fs/btrfs/transaction.c    | 38 ++--------------------
 fs/btrfs/zoned.c          |  1 +
 6 files changed, 131 insertions(+), 50 deletions(-)