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-rw-r--r--mm/mempolicy.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 36cb46cddf61..79cea01f9f78 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2654,7 +2654,7 @@ void mpol_free_shared_policy(struct shared_policy *p)
2654} 2654}
2655 2655
2656#ifdef CONFIG_NUMA_BALANCING 2656#ifdef CONFIG_NUMA_BALANCING
2657static bool __initdata numabalancing_override; 2657static int __initdata numabalancing_override;
2658 2658
2659static void __init check_numabalancing_enable(void) 2659static void __init check_numabalancing_enable(void)
2660{ 2660{
@@ -2663,9 +2663,15 @@ static void __init check_numabalancing_enable(void)
2663 if (IS_ENABLED(CONFIG_NUMA_BALANCING_DEFAULT_ENABLED)) 2663 if (IS_ENABLED(CONFIG_NUMA_BALANCING_DEFAULT_ENABLED))
2664 numabalancing_default = true; 2664 numabalancing_default = true;
2665 2665
2666 /* Parsed by setup_numabalancing. override == 1 enables, -1 disables */
2667 if (numabalancing_override)
2668 set_numabalancing_state(numabalancing_override == 1);
2669
2666 if (nr_node_ids > 1 && !numabalancing_override) { 2670 if (nr_node_ids > 1 && !numabalancing_override) {
2667 printk(KERN_INFO "Enabling automatic NUMA balancing. " 2671 printk(KERN_INFO "%s automatic NUMA balancing. "
2668 "Configure with numa_balancing= or the kernel.numa_balancing sysctl"); 2672 "Configure with numa_balancing= or the "
2673 "kernel.numa_balancing sysctl",
2674 numabalancing_default ? "Enabling" : "Disabling");
2669 set_numabalancing_state(numabalancing_default); 2675 set_numabalancing_state(numabalancing_default);
2670 } 2676 }
2671} 2677}
@@ -2675,13 +2681,12 @@ static int __init setup_numabalancing(char *str)
2675 int ret = 0; 2681 int ret = 0;
2676 if (!str) 2682 if (!str)
2677 goto out; 2683 goto out;
2678 numabalancing_override = true;
2679 2684
2680 if (!strcmp(str, "enable")) { 2685 if (!strcmp(str, "enable")) {
2681 set_numabalancing_state(true); 2686 numabalancing_override = 1;
2682 ret = 1; 2687 ret = 1;
2683 } else if (!strcmp(str, "disable")) { 2688 } else if (!strcmp(str, "disable")) {
2684 set_numabalancing_state(false); 2689 numabalancing_override = -1;
2685 ret = 1; 2690 ret = 1;
2686 } 2691 }
2687out: 2692out: