mm: thp: don't need care deferred split queue in memcg charge move path
commit fac0516b5534897bf4c4a88daa06a8cfa5611b23 upstream If compound is true, this means it is a PMD mapped THP. Which implies the page is not linked to any defer list. So the first code chunk will not be executed. Also with this reason, it would not be proper to add this page to a defer list. So the second code chunk is not correct. Based on this, we should remove the defer list related code. [yang.shi@linux.alibaba.com: better patch title] Link: http://lkml.kernel.org/r/20200117233836.3434-1-richardw.yang@linux.intel.com Fixes: 87eaceb3faa5 ("mm: thp: make deferred split shrinker memcg aware") Signed-off-by: NWei Yang <richardw.yang@linux.intel.com> Suggested-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: NYang Shi <yang.shi@linux.alibaba.com> Cc: David Rientjes <rientjes@google.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: <stable@vger.kernel.org> [5.4+] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org> [Fixed conflicts with our 4.19 kernel] Signed-off-by: NYang Shi <yang.shi@linux.alibaba.com> Acked-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
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