On Fri, 15 Jan 2021 09:49:24 +0100 Oscar Salvador <osalvador@xxxxxxx> wrote: > I am having a hard time trying to grasp what are you trying to achieve here. > Could you elaborate some more? Ideally stating what is the problem you are > fixing here. > Sorry for confusion, example: there are four process A,B,C,D,which map the same file into there process space, which set there PF_MCE_KILL_EARLY flag to TRUE, if process A trigger one UE with MF_ACTION_REQUIRED set, in current code, only process A will be killed, B,C,D remain alive, but for the PF_MCE_KILL_EARLY we set, we want B,C,D also be killed. this is what I want to fix. > If it is not set by the caller of memory_failure, we still want to check the > task/threads' MCE policy to check whether PF_MCE_KILL_EARLY it was set with > prctl, right? > Yes, right! > That makes sense to me. > > So, back to your change, if force_early was set, but the main task does not > match, you still want to check whether any thread belonging to the main task > has the policy set? > Yes. -- Best Regards! Aili Yao
