Re: [RFC PATCH] dma-fence: Fix races of fence callbacks versus destructors by locking

[Philipp Stanner]

On Tue, 2026-06-09 at 14:36 +0100, Tvrtko Ursulin wrote:
> I wanted to ask something else.
> What happened to the idea to remove opportunistic signalling from 
> dma_fence_is_signaled?

AFAIAR that was declared impossible because some system setups like
mobile devices don't signal the fences with an interrupt handler, but
have some sort of daemon (in userspace) who peridiocally wakes up to
update the graphics output. It wakes up every T milliseconds and
opportunistically asks through dma_fence_is_signaled() (and that
through ops->signaled() which fences are already signaled.

P.