bcachefs: Always check for invalid bkeys in trans commit path

We check for this prior to metadata being written, but we're seeing some
strange bugs lately, and this will help catch those closer to where they
occur.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/btree_update_leaf.c

@@ -222,18 +222,6 @@ static bool btree_insert_key_leaf(struct btree_trans *trans,
 static inline void btree_insert_entry_checks(struct btree_trans *trans,
 					     struct btree_insert_entry *i)
 {
-	struct bch_fs *c = trans->c;
-
-	if (bch2_debug_check_bkeys) {
-		const char *invalid = bch2_bkey_invalid(c,
-				bkey_i_to_s_c(i->k), i->bkey_type);
-		if (invalid) {
-			char buf[200];
-
-			bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(i->k));
-			panic("invalid bkey %s on insert: %s\n", buf, invalid);
-		}
-	}
 	BUG_ON(!i->is_extent && bpos_cmp(i->k->k.p, i->iter->real_pos));
 	BUG_ON(i->level		!= i->iter->level);
 	BUG_ON(i->btree_id	!= i->iter->btree_id);
@@ -592,9 +580,18 @@ static inline int do_bch2_trans_commit(struct btree_trans *trans,
 		}
 	}
 
-	if (IS_ENABLED(CONFIG_BCACHEFS_DEBUG))
-		trans_for_each_update2(trans, i)
-			btree_insert_entry_checks(trans, i);
+	trans_for_each_update2(trans, i) {
+		const char *invalid = bch2_bkey_invalid(c,
+				bkey_i_to_s_c(i->k), i->bkey_type);
+		if (invalid) {
+			char buf[200];
+
+			bch2_bkey_val_to_text(&PBUF(buf), c, bkey_i_to_s_c(i->k));
+			bch_err(c, "invalid bkey %s on insert: %s\n", buf, invalid);
+			bch2_fatal_error(c);
+		}
+		btree_insert_entry_checks(trans, i);
+	}
 	bch2_btree_trans_verify_locks(trans);
 
 	trans_for_each_update2(trans, i)