On Wed, Aug 25, 2021 at 12:17:55PM -0700, Andrew Morton wrote: > From: Miaohe Lin <linmiaohe@xxxxxxxxxx> > Subject: mm/memory_hotplug: fix potential permanent lru cache disable > > If offline_pages failed after lru_cache_disable(), it forgot to do > lru_cache_enable() in error path. So we would have lru cache disabled > permanently in this case. > > Link: https://lkml.kernel.org/r/20210821094246.10149-3-linmiaohe@xxxxxxxxxx > Fixes: d479960e44f2 ("mm: disable LRU pagevec during the migration temporarily") > Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> > Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> > Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> > Reviewed-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> > Cc: Chris Goldsworthy <cgoldswo@xxxxxxxxxxxxxx> > Cc: Michal Hocko <mhocko@xxxxxxxx> > Cc: Minchan Kim <minchan@xxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> > Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Acked-by: Minchan Kim <minchan@xxxxxxxxxx> Thanks for catching.
