On Wed, Nov 20, 2024 at 03:57:46PM +0100, Peter Zijlstra wrote: > On Wed, Nov 20, 2024 at 03:56:49PM +0100, Peter Zijlstra wrote: > > > But I think we can make the fall-back safer, we can simply force the IPI > > when we poke at noinstr code -- then NOHZ_FULL gets to keep the pieces, > > but at least we don't violate any correctness constraints. > > I should have read more; that's what is being proposed. Hm, now I'm wondering what you read, as I only see the text poke IPIs being forced when the caller sets force_ipi, rather than the text poke code itself detecting a write to .noinstr. -- Josh
