bcachefs: Fix keylist size in btree_update

This fixes a buffer overrun, fortunately caught by a BUG_ON().

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-12-29 11:27:47 -05:00 • committed by Kent Overstreet
commit 74ef5b0d3f