On Thu, Oct 22, 2020 at 05:40:40PM +0100, Matthew Wilcox wrote: > On Thu, Oct 22, 2020 at 04:35:17PM +0000, David Laight wrote: > > Wait... > > readv(2) defines: > > ssize_t readv(int fd, const struct iovec *iov, int iovcnt); > > It doesn't really matter what the manpage says. What does the AOSP > libc header say? FWIW, see https://www.spinics.net/lists/linux-scsi/msg147836.html and subthread from there on...