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    SubjectRe: [RFC][PATCH] sched: Use lightweight hazard pointers to grab lazy mms
    On Thu, Jun 17, 2021 at 07:10:41AM -0700, Andy Lutomirski wrote:
    > On Thu, Jun 17, 2021, at 2:08 AM, Peter Zijlstra wrote:
    > > +extern void mm_unlazy_mm_count(struct mm_struct *mm);
    >
    > You didn't like mm_many_words_in_the_name_of_the_function()? :)

    :-)

    > > - if (mm) {
    > > - membarrier_mm_sync_core_before_usermode(mm);
    > > - mmdrop(mm);
    > > - }
    >
    > What happened here?
    >

    I forced your patch ontop of tip/master without bothering about the
    membarrier cleanups and figured I could live without that call for a
    little while.

    But yes, that needs cleaning up.

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