On Wed, Sep 11, 2024 at 12:39 PM Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, 11 Sep 2024 07:22:17 -0600 Jens Axboe <axboe@xxxxxxxxx> wrote:
>
> > On 9/10/24 9:42 PM, Andrew Morton wrote:
> > > On Tue, 10 Sep 2024 17:08:30 -0600 Jens Axboe <axboe@xxxxxxxxx> wrote:
> > >
> > >>> Fixes are in git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-stable
> > >>>
> > >>> c2a967f6ab0e mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO
> > >>> c0f398c3b2cf mm/hugetlb_vmemmap: batch HVO work when demoting
> > >>>
> > >>> Additional improvements from mm-stable that may or may not help your test case:
> > >>>
> > >>> e98337d11bbd mm/contig_alloc: support __GFP_COMP
> > >>> 463586e9ff39 mm/cma: add cma_{alloc,free}_folio()
> > >>> cf54f310d0d3 mm/hugetlb: use __GFP_COMP for gigantic folios
> > >>
> > >> I didn't pick patches, just pulled all of mm-stable - yep that fixes it
> > >> for me, no longer spending 60+% of the runtime during exit. I trust
> > >> these are heading to stable?
> > >
> > > None of these are tagged for -stable backporting. We can later request
> > > a backport without the cc:stable tag, although narrowing down the
> > > required patches would be good.
> >
> > These two:
> >
> > c2a967f6ab0e mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO
> > c0f398c3b2cf mm/hugetlb_vmemmap: batch HVO work when demoting
> >
> > to cover both cases.
>
> OK thanks.
>
> Yu, could you please request a -stable backport after this hits mainline?
Will do, thanks.
