329 	int next = pipe->curbuf + pipe->nrbufs;  in sanity()
332 		if (unlikely(!pipe->nrbufs))  in sanity()
348 			pipe->curbuf, pipe->nrbufs, pipe->buffers);  in sanity()
397 	if (idx == pipe->curbuf && pipe->nrbufs)  in copy_page_to_iter_pipe()
399 	pipe->nrbufs++;  in copy_page_to_iter_pipe()
521 	while (idx != pipe->curbuf || !pipe->nrbufs) {  in push_pipe()
525 		pipe->nrbufs++;  in push_pipe()
990 	if (pipe->nrbufs) {  in pipe_truncate()
993 		int nrbufs = (idx - pipe->curbuf) & (pipe->buffers - 1);  in pipe_truncate()  local
997 			nrbufs++;  in pipe_truncate()
999 		while (pipe->nrbufs > nrbufs) {  in pipe_truncate()
1002 			pipe->nrbufs--;  in pipe_truncate()
1162 	WARN_ON(pipe->nrbufs == pipe->buffers);  in iov_iter_pipe()
1165 	i->idx = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);  in iov_iter_pipe()