Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads

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Subject: Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
From: Seth Forshee <sforshee@xxxxxxxxxx>
Date: Mon, 30 Jan 2023 11:50:10 -0600
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Petr Mladek <pmladek@xxxxxxxx>, Joe Lawrence <joe.lawrence@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, Jiri Kosina <jikos@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, live-patching@xxxxxxxxxxxxxxx, Miroslav Benes <mbenes@xxxxxxx>
In-reply-to: <Y9e6ssSHUt+MUvum@hirez.programming.kicks-ass.net>

On Mon, Jan 30, 2023 at 01:40:18PM +0100, Peter Zijlstra wrote:
> Both ways this seems to make KLP 'depend' (or at least work lots better)
> when PREEMPT_DYNAMIC=y. Do we want a PREEMPT_DYNAMIC=n fallback for
> _cond_resched() too?

I would like this, as we have no other need for PREEMPT_DYNAMIC=y and
currently have it disabled.

Thanks,
Seth

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References:
- [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Seth Forshee (DigitalOcean)
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Petr Mladek
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Seth Forshee (DigitalOcean)
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Josh Poimboeuf
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Peter Zijlstra
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Josh Poimboeuf
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Josh Poimboeuf
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Josh Poimboeuf
- Re: [PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
  - From: Peter Zijlstra

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