David Howells wrote: > Willem de Bruijn <willemdebruijn.kernel@xxxxxxxxx> wrote: > > > No need to modify __sys_sendmmsg explicitly, as it ends up calling > > __sys_sendmsg? > > > > Also, sendpage does this flags masking in the internal sock_FUNC > > helpers rather than __sys_FUNC. Might be preferable. > > I was wondering whether other flags, such as MSG_BATCH should be added to the > list. Is it bad if userspace sets that in sendmsg()? AF_KCM, at least, looks > at it. That flag was added exactly for AF_KCM. A process that explicitly sets it might experience bad behavior (increased latency), but there are no legacy AF_KCM applications that precede the flag.
