On Mon, 2025-01-20 at 20:56 +0200, Nadav Amit wrote: > > Then in switch_mm_irqs_off(), b > > if (this_cpu_read(cpu_tlbstate.pending_tlbsync)) > tlbsync(); > > Note that when switch_mm_irqs_off() is called due to context switch > from > context_switch(), finish_task_switch() has still not took place, so > the > task cannot be scheduled on other cores. > > That would certainly work. I'll add that as a separate patch, which the x86 maintainers can either accept or leave out. I'm not sure what's worse, making reclaim non-migratable, or adding an extra branch (we can probably avoid a cache line miss) to switch_mm_irqs_off. -- All Rights Reversed.
