fellow_cache: use buddy_returns in fellow_cache_obj_get

src/fellow_cache.c

@@ -5389,6 +5389,8 @@ struct objcore **ocp, uintptr_t priv2, unsigned crit)
 	CHECK_OBJ_NOTNULL(fc, FELLOW_CACHE_MAGIC);
 	fdba.fdb = priv2;
 
+	struct buddy_returns *rets = BUDDY_RETURNS_STK(fc->membuddy, 2);
+
 	/*
 	 * init a new object, then insert it atomically
 	 *
@@ -5539,7 +5541,7 @@ struct objcore **ocp, uintptr_t priv2, unsigned crit)
 		memcpy(ptr, fdo, sz);
 		fdo = fcs->u.fco_fdo = (void *)ptr;
 
-		buddy_return1_ptr_extent(fc->membuddy, &fcs->alloc);
+		AN(buddy_return_ptr_extent(rets, &fcs->alloc));
 	}
 	else
 		fdo = fellow_disk_obj_trim(fc, fcs);
@@ -5583,8 +5585,9 @@ struct objcore **ocp, uintptr_t priv2, unsigned crit)
 	AZ(pthread_mutex_unlock(&fco->mtx));
 
 	if (dowry.bits)
-		buddy_return1_ptr_page(fc->membuddy, &dowry);
+		AN(buddy_return_ptr_page(rets, &dowry));
 	fellow_cache_obj_trim(fc, fco);
+	buddy_return(rets);
 	return (FCR_OK(fco));
   err:
 	if (ocp) {
@@ -5600,12 +5603,13 @@ struct objcore **ocp, uintptr_t priv2, unsigned crit)
 	fellow_cache_obj_deref(fc, fco);
 
 	if (fcsl_mem.ptr)
-		buddy_return1_ptr_extent(fc->membuddy, &fcsl_mem);
+		AN(buddy_return_ptr_extent(rets, &fcsl_mem));
 	if (strstr(err, "alloc"))
 		fcr = FCR_ALLOCERR(err);
 	else
 		fcr = FCR_IOERR(err);
 	fellow_cache_res_check(fc, fcr);
+	buddy_return(rets);
 	return (fcr);
 }