1 files changed, 17 insertions, 9 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b94f3541f67b..b4c38bc8049c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -205,7 +205,8 @@ extern unsigned long long time_sync_thresh;
 #define task_is_stopped_or_traced(task) \
                         ((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
 #define task_contributes_to_load(task)  \
-                                ((task->state & TASK_UNINTERRUPTIBLE) != 0)
+                                ((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
+                                 (task->flags & PF_FROZEN) == 0)
 
 #define __set_task_state(tsk, state_value)              \
         do { (tsk)->state = (state_value); } while (0)
@@ -300,17 +301,11 @@ extern int proc_dosoftlockup_thresh(struct ctl_table *table, int write,
                                     struct file *filp, void __user *buffer,
                                     size_t *lenp, loff_t *ppos);
 extern unsigned int  softlockup_panic;
-extern unsigned long sysctl_hung_task_check_count;
-extern unsigned long sysctl_hung_task_timeout_secs;
-extern unsigned long sysctl_hung_task_warnings;
 extern int softlockup_thresh;
 #else
 static inline void softlockup_tick(void)
 {
 }
-static inline void spawn_softlockup_task(void)
-{
-}
 static inline void touch_softlockup_watchdog(void)
 {
 }
@@ -319,6 +314,15 @@ static inline void touch_all_softlockup_watchdogs(void)
 }
 #endif
 
+#ifdef CONFIG_DETECT_HUNG_TASK
+extern unsigned int  sysctl_hung_task_panic;
+extern unsigned long sysctl_hung_task_check_count;
+extern unsigned long sysctl_hung_task_timeout_secs;
+extern unsigned long sysctl_hung_task_warnings;
+extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
+                                         struct file *filp, void __user *buffer,
+                                         size_t *lenp, loff_t *ppos);
+#endif
 
 /* Attach to any functions which should be ignored in wchan output. */
 #define __sched         __attribute__((__section__(".sched.text")))
@@ -1255,9 +1259,8 @@ struct task_struct {
 /* ipc stuff */
         struct sysv_sem sysvsem;
 #endif
-#ifdef CONFIG_DETECT_SOFTLOCKUP
+#ifdef CONFIG_DETECT_HUNG_TASK
 /* hung task detection */
-        unsigned long last_switch_timestamp;
         unsigned long last_switch_count;
 #endif
 /* CPU-specific state of this task */
@@ -1294,6 +1297,11 @@ struct task_struct {
 /* Protection of (de-)allocation: mm, files, fs, tty, keyrings */
         spinlock_t alloc_lock;
 
+#ifdef CONFIG_GENERIC_HARDIRQS
+        /* IRQ handler threads */
+        struct irqaction *irqaction;
+#endif
+
         /* Protection of the PI data structures: */
         spinlock_t pi_lock;