Re: [PATCH] sched: Proxy yields to donor tasks

[Peter Zijlstra]

On Thu, Nov 06, 2025 at 12:40:10PM +0200, Fernand Sieber wrote:
> When executing a task in proxy context, handle yields as if they were
> requested by the donor task.

I'll modify this to say it matches the traditional PI semantics.

> This avoids scenario like proxy task yielding, pick next task selecting the
> same previous blocked donor, running the proxy task again, etc.
> 
> Suggested-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Signed-off-by: Fernand Sieber <sieberf@xxxxxxxxxx>

Thanks, I'll add:

Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-lkp/202510211205.1e0f5223-lkp@xxxxxxxxx

Also, for now proxy and ext are mutually exclusive, but yeah, might as
convert that one now too. At some point someone will have to go through
all that.