Messages in this thread | | | From | HORIGUCHI NAOYA(堀口 直也) <> | Subject | Re: [PATCH v4 5/7] mm,hwpoison: drain pcplists before bailing out for non-buddy zero-refcount page | Date | Fri, 25 Sep 2020 02:22:27 +0000 |
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On Thu, Sep 17, 2020 at 10:10:47AM +0200, Oscar Salvador wrote: > A page with 0-refcount and !PageBuddy could perfectly be a pcppage. > Currently, we bail out with an error if we encounter such a page, meaning > that we do not handle pcppages neither from hard-offline nor from > soft-offline path. > > Fix this by draining pcplists whenever we find this kind of page and retry > the check again. It might be that pcplists have been spilled into the > buddy allocator and so we can handle it. > > Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
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