bcachefs: Unit test updates

- Convert to for_each_btree_key2(), for_each_btree_key_commit(),
   for_each_btree_key_reverse()
 - No more bare bch2_btree_iter_peek(); we're now fault-injection lock
   restarts, so we always need a lockrestart_do() or equivalent.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2022-07-20 16:25:00 -04:00 • committed by Kent Overstreet
commit 84ece59ad5