1 files changed, 14 insertions, 0 deletions

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 92f6e5bc3c24..89d74436318c 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -82,6 +82,9 @@ extern int percpu_pagelist_fraction;
 extern int compat_log;
 extern int latencytop_enabled;
 extern int sysctl_nr_open_min, sysctl_nr_open_max;
+#ifndef CONFIG_MMU
+extern int sysctl_nr_trim_pages;
+#endif
 #ifdef CONFIG_RCU_TORTURE_TEST
 extern int rcutorture_runnable;
 #endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
@@ -1102,6 +1105,17 @@ static struct ctl_table vm_table[] = {
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec
         },
+#else
+        {
+                .ctl_name       = CTL_UNNUMBERED,
+                .procname       = "nr_trim_pages",
+                .data           = &sysctl_nr_trim_pages,
+                .maxlen         = sizeof(sysctl_nr_trim_pages),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec_minmax,
+                .strategy       = &sysctl_intvec,
+                .extra1         = &zero,
+        },
 #endif
         {
                 .ctl_name       = VM_LAPTOP_MODE,