[PATCH 0/5] Remove extent_map::bdev

[David Sterba <dsterba@suse.com>]

The extent_map::bdev is unused and and can be removed, but it's not
straightforward so there are several steps. The first patch decouples
bdev from map_lookup. The remaining patches clean up use of the bdev,
removing a few bio_set_dev on the way. In the end, submit_extent_page is
one parameter lighter.

This has survived several fstests runs

David Sterba (5):
  btrfs: assert extent_map bdevs and lookup_map and split
  btrfs: get bdev from latest_dev for dio bh_result
  btrfs: drop bio_set_dev where not needed
  btrfs: remove extent_map::bdev
  btrfs: drop bdev argument from submit_extent_page

 fs/btrfs/compression.c | 10 ----------
 fs/btrfs/disk-io.c     |  3 ---
 fs/btrfs/extent_io.c   | 15 +++------------
 fs/btrfs/extent_map.c  |  6 +++++-
 fs/btrfs/extent_map.h  | 11 ++---------
 fs/btrfs/file-item.c   |  1 -
 fs/btrfs/file.c        |  3 ---
 fs/btrfs/inode.c       | 14 ++++----------
 fs/btrfs/relocation.c  |  2 --
 9 files changed, 14 insertions(+), 51 deletions(-)

-- 
2.23.0