bcachefs: Add write buffer flush param to backpointer_get_key()

In an upcoming patch bch2_backpointer_get_key() will be repairing when
it finds a dangling backpointer; it will need to flush the btree write
buffer before it can definitively say there's an error.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/bcachefs/backpointers.h b/fs/bcachefs/backpointers.h
index 65ede8adbc36..060dad1521ee 100644
--- a/fs/bcachefs/backpointers.h
+++ b/fs/bcachefs/backpointers.h
@@ -158,10 +158,11 @@ static inline void bch2_extent_ptr_to_bp(struct bch_fs *c,
 	};
 }
 
+struct bkey_buf;
 struct bkey_s_c bch2_backpointer_get_key(struct btree_trans *, struct bkey_s_c_backpointer,
-					 struct btree_iter *, unsigned);
+					 struct btree_iter *, unsigned, struct bkey_buf *);
 struct btree *bch2_backpointer_get_node(struct btree_trans *, struct bkey_s_c_backpointer,
-					struct btree_iter *);
+					struct btree_iter *, struct bkey_buf *);
 
 int bch2_check_btree_backpointers(struct bch_fs *);
 int bch2_check_extents_to_backpointers(struct bch_fs *);