Re: [PATCH][RFC] Linux VM hooks for advanced RDMA NICs

Andi Kleen
2005-04-27T13:47:49Z

Brice Goglin <Brice.Goglin@ens-lyon.org> writes:
> I see two drawback in (2).
> First, it requires to play with the list of ioproc_ops when VMA are
> merged or split. Actually, it's not that bad since the list often
> contains only 1 ioproc_ops.

I had a similar problem with the NUMA policies. With some minor hacks
you could probably reuse the policy support by making it a weird kind
of policy. That would allow to keep the fast path impact very low,
which I think is the most important part of such hardware specific
narrow purpose, useless to 99.9999% of all users hacks
(Golden rule number 1 such code: dont impact anything else)

-Andi