bcachefs: bch2_btree_trans_peek_slot_updates

refactoring the BTREE_ITER_WITH_UPDATES code, prep for removing the flag
and making it always-on

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-12-17 00:57:37 -05:00
commit c558c577cb