[GIT PULL] Btrfs fixes for 5.1-rc3

[David Sterba]

Hi,

please pull the following tag to receive:

- fsync fixes: i_size for truncate vs fsync, dio vs buffered during
  snapshotting, remove complicated but incomplete assertion

- removed excessive warnigs, misreported device stats updates

- fix raid56 page mapping for 32bit arch

- fixes reported by static analyzer

Thanks.

----------------------------------------------------------------
The following changes since commit d3865159ac7823f645d313fdbac0b256ac01eeb9:

  btrfs: zstd: ensure reclaim timer is properly cleaned up (2019-02-27 17:45:04 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.1-rc2-tag

for you to fetch changes up to 0ccc3876e4b2a1559a4dbe3126dda4459d38a83b:

  Btrfs: fix assertion failure on fsync with NO_HOLES enabled (2019-03-20 19:53:39 +0100)

----------------------------------------------------------------
Andrea Righi (1):
      btrfs: raid56: properly unmap parity page in finish_parity_scrub()

David Sterba (1):
      btrfs: don't report readahead errors and don't update statistics

Filipe Manana (3):
      Btrfs: fix incorrect file size after shrinking truncate and fsync
      Btrfs: fix file corruption after snapshotting due to mix of buffered/DIO writes
      Btrfs: fix assertion failure on fsync with NO_HOLES enabled

Josef Bacik (1):
      btrfs: remove WARN_ON in log_dir_items

Nikolay Borisov (2):
      btrfs: Fix bound checking in qgroup_trace_new_subtree_blocks
      btrfs: Avoid possible qgroup_rsv_size overflow in btrfs_calculate_inode_block_rsv_size

 fs/btrfs/extent-tree.c |  2 +-
 fs/btrfs/qgroup.c      |  4 ++--
 fs/btrfs/raid56.c      |  3 ++-
 fs/btrfs/transaction.c | 49 +++++++++++++++++++++++++++++++++++++++++++------
 fs/btrfs/tree-log.c    | 33 +++++++++++++++++++++++----------
 fs/btrfs/volumes.c     |  2 +-
 6 files changed, 72 insertions(+), 21 deletions(-)