mm, hugetlb: remove redundant list_empty check in gather_surplus_pages()
If list is empty, list_for_each_entry_safe() doesn't do anything. So, this check is redundant. Remove it. Signed-off-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: NMichal Hocko <mhocko@suse.cz> Reviewed-by: NWanpeng Li <liwanp@linux.vnet.ibm.com> Reviewed-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: NHillf Danton <dhillf@gmail.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: Davidlohr Bueso <davidlohr.bueso@hp.com> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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