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 <[email protected]>
Acked-by: Naoya Horiguchi <[email protected]>
