w/r/t "irq & spin_lock: Add counted interrupt disabling/enabling": holes in pcpu_hot?

From: Lyude Paul
Date: Thu Jul 24 2025 - 16:36:26 EST


Hey! Sorry to be a bit late here but I just noticed this comment in your email
that I didn't before

On Wed, 2024-10-23 at 21:51 +0200, Peter Zijlstra wrote:
> We still have a few holes in pcpu_hot iirc.

I assume you mean we still have space for adding things into pcpu_hot? And if
so, where exactly are these holes? At some point when working on this series I
attempted adding a single unsigned long to pcpu_hot and the build failed as a
result of not having enough space. But if there's somewhere we can add
something else, that might actually help with a few of the issues in this
patch series

--
Cheers,
Lyude Paul (she/her)
Software Engineer at Red Hat

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