Willem de Bruijn [off-list ref] wrote:

    struct bio_vec bvec;
    struct msghdr msg = { .msg_flags = MSG_SPLICE_PAGES | ... };

    ..

    bvec_set_virt
    iov_iter_bvec
    sock_sendmsg

is a frequent pattern. Does it make sense to define a wrapper? Same for bvec_set_page.

I dunno.  I'm trying to move towards aggregating multiple pages in a bvec
before calling sendmsg if possible rather than doing it one page at a time,
but it's easier and more obvious in some places than others.

David