[PATCH net-next v2 10/17] nvme: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage

David Howells dhowells at redhat.com
Sun Jun 18 10:28:41 PDT 2023


Willem de Bruijn <willemdebruijn.kernel at gmail.com> 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




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