is_unprivileged_user  668 fs/pipe.c      	if (too_many_pipe_buffers_soft(user_bufs) && is_unprivileged_user()) {
is_unprivileged_user  673 fs/pipe.c      	if (too_many_pipe_buffers_hard(user_bufs) && is_unprivileged_user())
is_unprivileged_user 1083 fs/pipe.c      			is_unprivileged_user()) {