[PATCH v2 0/3] Misc cosmetic changes for map_private_extent_buffer

[Johannes Thumshirn <jthumshirn@suse.de>]

While trying to understand the checksum code I came across some oddities
regarding map_private_extent_buffer() and it's interaction with
csum_tree_block().

These patches address them but are either purely cosmetic or only add a
comment documenting behaviour.

Changes to v1:
* Add Reviewed-by tags
* Change wording of commit message in patch 3/3

Johannes Thumshirn (3):
  btrfs: don't initialize 'offset' in map_private_extent_buffer()
  btrfs: use offset_in_page for start_offset in
    map_private_extent_buffer()
  btrfs: document extent mapping assumptions in checksum

 fs/btrfs/disk-io.c   | 6 ++++++
 fs/btrfs/extent_io.c | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

-- 
2.16.4