On 2021-10-05 11:17:16 [-0700], Eric Biggers wrote: > Hi Sebastian, Hi, > The comment above the definition of migrate_disable() in include/linux/preempt.h > claims that it is a temporary workaround. It claims that, yes. I think this is due to the scheduler's limitation and should not encourage to use this over long sections. > Is there a better way to do this that should be used instead? An alternative might be to move the whole test into a kworker which is bound to a specific CPU. So even without disabling preemption/ migration the per-CPU pointer would remain stable. > - Eric Sebastian
