bcachefs: Add some comments for btree iterator flags

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-01-09 20:43:58 -05:00 • committed by Kent Overstreet
commit d98a5e3945