begin_operation
return (begin_operation(state, operation, waiter, initiator) == VDO_SUCCESS);
begin_operation(state, operation, waiter, initiator) :
.begin_operation = cachefiles_begin_operation,
if (!cookie->volume->cache->ops->begin_operation(cres, want_state))
return cookie->volume->cache->ops->begin_operation(cres, want_state);
bool (*begin_operation)(struct netfs_cache_resources *cres,