bcachefs: Fix another error path locking bug

btree_update_nodes_written() was leaking a btree node lock on failure to
get a journal reservation.

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 2020-04-04 15:45:06 -04:00 • committed by Kent Overstreet
commit 8707ab0df2