Messages in this thread |  | | From | Michael Ellerman <> | Subject | Re: [PATCH v2 1/4] mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race | Date | Tue, 15 Sep 2020 21:26:29 +1000 |
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Nicholas Piggin <npiggin@gmail.com> writes: > Excerpts from peterz@infradead.org's message of September 14, 2020 8:56 pm: >> On Mon, Sep 14, 2020 at 02:52:16PM +1000, Nicholas Piggin wrote: >>> Reading and modifying current->mm and current->active_mm and switching >>> mm should be done with irqs off, to prevent races seeing an intermediate >>> state. ... >>> >>> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> >> >> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> >> >> I'm thinking we want this selected on x86 as well. Andy? > > Thanks for the ack. The plan was to take it through the powerpc tree, > but if you'd want x86 to select it, maybe a topic branch? Although > Michael will be away during the next merge window so I don't want to > get too fancy. Would you mind doing it in a follow up merge after > powerpc, being that it's (I think) a small change?
Or get akpm to take the series, including the x86 change.
cheers
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