1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 00de3e950dd4..977cb57d7bc9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -854,6 +854,7 @@ struct task_struct {
 #endif
 #ifdef CONFIG_DETECT_HUNG_TASK
         unsigned long                   last_switch_count;
+        unsigned long                   last_switch_time;
 #endif
         /* Filesystem information: */
         struct fs_struct                *fs;