Re: [NFS] [PATCH 008 of 11] knfsd: add svc_set_num_threads

From: Neil Brown
Date: Mon Jul 31 2006 - 00:22:45 EST


On Sunday July 30, akpm@xxxxxxxx wrote:
> On Mon, 31 Jul 2006 10:42:23 +1000
> NeilBrown <neilb@xxxxxxx> wrote:
>
> > + /* destroy old threads */
> > + while (nrservs < 0 &&
> > + (victim = choose_victim(serv, pool, &state)) != NULL) {
> > + send_sig(serv->sv_kill_signal, victim, 1);
> > + nrservs++;
>
> Using signals to communicate with kernel threads is rather baroque - we
> have a range of less klunky ways of controlling kernel threads in-kernel.

True.

>
> The containers guys are going through converting lots of these things over
> to the kthread API - I believe it's a requirement for containerisation.
>

Yes - hch has suggested that this needs to be a done. I had a try and
there were enough complications that I decided to leave it to asked
Greg's NUMA stuff.

> nfsd/rpc is going to be one of the hard ones to convert, but it's going to
> happen.

yep.

NeilBrown
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