bcachefs: Plumb bkey into __btree_err()

It can be useful to know the exact byte offset within a btree node where
an error occured.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-05-24 13:59:34 -04:00
commit 1292bc2ebf