mm: sched: numa: Control enabling and disabling of NUMA balancing

This patch adds Kconfig options and kernel parameters to allow the
enabling and disabling of automatic NUMA balancing. The existance
of such a switch was and is very important when debugging problems
related to transparent hugepages and we should have the same for
automatic NUMA placement.

Signed-off-by: Mel Gorman <mgorman@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 9776f068306b..2e8d2625b814 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1996,6 +1996,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
         nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
 
+        numa_balancing= [KNL,X86] Enable or disable automatic NUMA balancing.
+                        Allowed values are enable and disable
+
         numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
                         one of ['zone', 'node', 'default'] can be specified
                         This can be set from sysctl after boot.