On 3/4/2022 5:34 PM, Miaohe Lin wrote:
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.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/migrate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/migrate.c b/mm/migrate.c
index c84eec19072a..abb0c6715e1f 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2378,8 +2378,8 @@ 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;
LGTM.
Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
