Commit 91925ab8 authored by Miaohe Lin's avatar Miaohe Lin Committed by akpm

mm/migration: avoid unneeded nodemask_t initialization

Avoid unneeded next_pass and this_pass initialization as they're always
set before using to save possible cpu cycles when there are plenty of
nodes in the system.

Link: https://lkml.kernel.org/r/20220318111709.60311-8-linmiaohe@huawei.comSigned-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Reviewed-by: default avatarMuchun Song <songmuchun@bytedance.com>
Reviewed-by: default avatarBaolin Wang <baolin.wang@linux.alibaba.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 3eefb826
......@@ -2345,8 +2345,8 @@ static int establish_migrate_target(int node, nodemask_t *used,
*/
static void __set_migration_target_nodes(void)
{
nodemask_t next_pass = NODE_MASK_NONE;
nodemask_t this_pass = NODE_MASK_NONE;
nodemask_t next_pass;
nodemask_t this_pass;
nodemask_t used_targets = NODE_MASK_NONE;
int node, best_distance;
......
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