PIPE_BUF_FLAG_LRU   69 fs/splice.c    			buf->flags |= PIPE_BUF_FLAG_LRU;
PIPE_BUF_FLAG_LRU   87 fs/splice.c    	buf->flags &= ~PIPE_BUF_FLAG_LRU;
PIPE_BUF_FLAG_LRU  148 fs/splice.c    	buf->flags |= PIPE_BUF_FLAG_LRU;