mm/vmscan.c: remove unused return value of shrink_node
The return value of shrink_node is not used, so remove unnecessary operations. Link: http://lkml.kernel.org/r/20191128143524.3223-1-fishland@aliyun.comSigned-off-by: NLiu Song <liu.song11@zte.com.cn> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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