164 ssize_t nfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)  in nfs_direct_IO()  argument
172 	VM_BUG_ON(iov_iter_count(iter) != PAGE_SIZE);  in nfs_direct_IO()
174 	if (iov_iter_rw(iter) == READ)  in nfs_direct_IO()
175 		return nfs_file_direct_read(iocb, iter, true);  in nfs_direct_IO()
176 	return nfs_file_direct_write(iocb, iter, true);  in nfs_direct_IO()
348 					      struct iov_iter *iter,  in nfs_direct_read_schedule_iovec()  argument
363 	while (iov_iter_count(iter)) {  in nfs_direct_read_schedule_iovec()
369 		result = iov_iter_get_pages_alloc(iter, &pagevec,   in nfs_direct_read_schedule_iovec()
375 		iov_iter_advance(iter, bytes);  in nfs_direct_read_schedule_iovec()
443 ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter,  in nfs_file_direct_read()  argument
452 	size_t count = iov_iter_count(iter);  in nfs_file_direct_read()
483 	if (iter_is_iovec(iter))  in nfs_file_direct_read()
490 	requested = nfs_direct_read_schedule_iovec(dreq, iter, iocb->ki_pos);  in nfs_file_direct_read()
501 		iov_iter_revert(iter, requested);  in nfs_file_direct_read()
821 					       struct iov_iter *iter,  in nfs_direct_write_schedule_iovec()  argument
836 	NFS_I(inode)->write_io += iov_iter_count(iter);  in nfs_direct_write_schedule_iovec()
837 	while (iov_iter_count(iter)) {  in nfs_direct_write_schedule_iovec()
843 		result = iov_iter_get_pages_alloc(iter, &pagevec,   in nfs_direct_write_schedule_iovec()
849 		iov_iter_advance(iter, bytes);  in nfs_direct_write_schedule_iovec()
925 ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter,  in nfs_file_direct_write()  argument
938 		file, iov_iter_count(iter), (long long) iocb->ki_pos);  in nfs_file_direct_write()
942 		result =  iov_iter_count(iter);  in nfs_file_direct_write()
944 		result = generic_write_checks(iocb, iter);  in nfs_file_direct_write()
951 	end = (pos + iov_iter_count(iter) - 1) >> PAGE_SHIFT;  in nfs_file_direct_write()
976 		requested = nfs_direct_write_schedule_iovec(dreq, iter, pos,  in nfs_file_direct_write()
981 		requested = nfs_direct_write_schedule_iovec(dreq, iter, pos,  in nfs_file_direct_write()
1000 		iov_iter_revert(iter, requested);  in nfs_file_direct_write()