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Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 284f330d6a01..84ff5e75c084 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -263,6 +263,11 @@ static int min_sched_shares_ratelimit = 100000; /* 100 usec */
static int max_sched_shares_ratelimit = NSEC_PER_SEC; /* 1 second */
#endif
+#ifdef CONFIG_COMPACTION
+static int min_extfrag_threshold;
+static int max_extfrag_threshold = 1000;
+#endif
+
static struct ctl_table kern_table[] = {
{
.procname = "sched_child_runs_first",
@@ -1130,6 +1135,16 @@ static struct ctl_table vm_table[] = {
.mode = 0200,
.proc_handler = sysctl_compaction_handler,
},
+ {
+ .procname = "extfrag_threshold",
+ .data = &sysctl_extfrag_threshold,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = sysctl_extfrag_handler,
+ .extra1 = &min_extfrag_threshold,
+ .extra2 = &max_extfrag_threshold,
+ },
+
#endif /* CONFIG_COMPACTION */
{
.procname = "min_free_kbytes",