mm: compaction: add /proc trigger for memory compaction

[platform/adaptation/renesas_rcar/renesas_kernel.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4c93486..284f330 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -37,6 +37,7 @@
 #include <linux/highuid.h>
 #include <linux/writeback.h>
 #include <linux/ratelimit.h>
+#include <linux/compaction.h>
 #include <linux/hugetlb.h>
 #include <linux/initrd.h>
 #include <linux/key.h>
@@ -1121,6 +1122,15 @@ static struct ctl_table vm_table[] = {
                .mode           = 0644,
                .proc_handler   = drop_caches_sysctl_handler,
        },
+#ifdef CONFIG_COMPACTION
+       {
+               .procname       = "compact_memory",
+               .data           = &sysctl_compact_memory,
+               .maxlen         = sizeof(int),
+               .mode           = 0200,
+               .proc_handler   = sysctl_compaction_handler,
+       },
+#endif /* CONFIG_COMPACTION */
        {
                .procname       = "min_free_kbytes",
                .data           = &min_free_kbytes,