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-rw-r--r--mm/kfence/core.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index 6e69986c3f0d..2b9f89749154 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -69,8 +69,11 @@ static int param_set_sample_interval(const char *val, const struct kernel_param
if (ret < 0)
return ret;
- if (!num) /* Using 0 to indicate KFENCE is disabled. */
+ /* Using 0 to indicate KFENCE is disabled. */
+ if (!num && READ_ONCE(kfence_enabled)) {
+ pr_info("disabled\n");
WRITE_ONCE(kfence_enabled, false);
+ }
*((unsigned long *)kp->arg) = num;
@@ -898,6 +901,7 @@ static int kfence_enable_late(void)
WRITE_ONCE(kfence_enabled, true);
queue_delayed_work(system_unbound_wq, &kfence_timer, 0);
+ pr_info("re-enabled\n");
return 0;
}