324 	int next = pipe->curbuf + pipe->nrbufs;  in sanity()
327 		if (unlikely(!pipe->nrbufs))  in sanity()
343 			pipe->curbuf, pipe->nrbufs, pipe->buffers);  in sanity()
392 	if (idx == pipe->curbuf && pipe->nrbufs)  in copy_page_to_iter_pipe()
394 	pipe->nrbufs++;  in copy_page_to_iter_pipe()
514 	while (idx != pipe->curbuf || !pipe->nrbufs) {  in push_pipe()
518 		pipe->nrbufs++;  in push_pipe()
930 	if (pipe->nrbufs) {  in pipe_truncate()
933 		int nrbufs = (idx - pipe->curbuf) & (pipe->buffers - 1);  in pipe_truncate()  local
937 			nrbufs++;  in pipe_truncate()
939 		while (pipe->nrbufs > nrbufs) {  in pipe_truncate()
942 			pipe->nrbufs--;  in pipe_truncate()
1094 	WARN_ON(pipe->nrbufs == pipe->buffers);  in iov_iter_pipe()
1097 	i->idx = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);  in iov_iter_pipe()