Messages in this thread | | | Date | Wed, 15 Nov 2017 09:14:52 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH] arch, mm: introduce arch_tlb_gather_mmu_lazy (was: Re: [RESEND PATCH] mm, oom_reaper: gather each vma to prevent) leaking TLB entry |
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On Mon 13-11-17 09:28:33, Minchan Kim wrote: [...] > void arch_tlb_gather_mmu(...) > > tlb->fullmm = !(start | (end + 1)) && atomic_read(&mm->mm_users) == 0;
Sorry, I should have realized sooner but this will not work for the oom reaper. It _can_ race with the final exit_mmap and run with mm_users == 0 -- Michal Hocko SUSE Labs
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