btrfs: move extent_io_tree defs to their own header

extent_io.c/h are huge, encompassing a bunch of different things.  The
extent_io_tree code can live on its own, so separate this out.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-09-23 10:05:19 -04:00 • committed by David Sterba
commit 9c7d3a5483
4 changed files with 230 additions and 216 deletions