Merge branch 'core/softlockup' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[sfrench/cifs-2.6.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9da5aa0771ef906b7e09b6cde69f31ff952a4f07..98e1fe51601df0066786500ba78e0648ec896287 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -138,6 +138,8 @@ extern unsigned long nr_uninterruptible(void);
 extern unsigned long nr_active(void);
 extern unsigned long nr_iowait(void);
 
+extern unsigned long get_parent_ip(unsigned long addr);
+
 struct seq_file;
 struct cfs_rq;
 struct task_group;
@@ -298,17 +300,11 @@ 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)
 {
 }
@@ -317,6 +313,15 @@ 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")))
@@ -1253,9 +1258,8 @@ 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 */
@@ -1292,6 +1296,11 @@ 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;
 
@@ -1405,6 +1414,8 @@ struct task_struct {
        int curr_ret_stack;
        /* Stack of return addresses for return function tracing */
        struct ftrace_ret_stack *ret_stack;
+       /* time stamp for last schedule */
+       unsigned long long ftrace_timestamp;
        /*
         * Number of functions that haven't been traced
         * because of depth overrun.