bcachefs: Don't open code closure_nr_remaining()

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

fs/bcachefs/btree_update_interior.c

@@ -2385,7 +2385,7 @@ void bch2_btree_updates_to_text(struct printbuf *out, struct bch_fs *c)
 		       as,
 		       as->mode,
 		       as->nodes_written,
-		       atomic_read(&as->cl.remaining) & CLOSURE_REMAINING_MASK,
+		       closure_nr_remaining(&as->cl),
 		       as->journal.seq);
 	mutex_unlock(&c->btree_interior_update_lock);
 }

fs/bcachefs/data_update.c

@@ -415,7 +415,7 @@ void bch2_update_unwritten_extent(struct btree_trans *trans,
 			break;
 	}
 
-	if ((atomic_read(&cl.remaining) & CLOSURE_REMAINING_MASK) != 1) {
+	if (closure_nr_remaining(&cl) != 1) {
 		bch2_trans_unlock(trans);
 		closure_sync(&cl);
 	}

fs/bcachefs/io.c

@@ -478,7 +478,7 @@ int bch2_extent_fallocate(struct btree_trans *trans,
 	ret = bch2_extent_update(trans, inum, iter, new.k, &disk_res,
 				 0, i_sectors_delta, true);
 out:
-	if ((atomic_read(&cl.remaining) & CLOSURE_REMAINING_MASK) != 1) {
+	if (closure_nr_remaining(&cl) != 1) {
 		bch2_trans_unlock(trans);
 		closure_sync(&cl);
 	}