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Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/ftrace.h7
-rw-r--r--include/linux/init_task.h1
-rw-r--r--include/linux/sched.h4
3 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 97c83e1bc589..39b95c56587e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -488,8 +488,15 @@ static inline int test_tsk_trace_graph(struct task_struct *tsk)
extern int ftrace_dump_on_oops;
+#ifdef CONFIG_PREEMPT
+#define INIT_TRACE_RECURSION .trace_recursion = 0,
+#endif
+
#endif /* CONFIG_TRACING */
+#ifndef INIT_TRACE_RECURSION
+#define INIT_TRACE_RECURSION
+#endif
#ifdef CONFIG_HW_BRANCH_TRACER
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dcfb93337e9a..6fc218529863 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -187,6 +187,7 @@ extern struct cred init_cred;
INIT_TRACE_IRQFLAGS \
INIT_LOCKDEP \
INIT_FTRACE_GRAPH \
+ INIT_TRACE_RECURSION \
}
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b4c38bc8049c..7ede5e490913 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1428,7 +1428,9 @@ struct task_struct {
#ifdef CONFIG_TRACING
/* state flags for use by tracers */
unsigned long trace;
-#endif
+ /* bitmask of trace recursion */
+ unsigned long trace_recursion;
+#endif /* CONFIG_TRACING */
};
/* Future-safe accessor for struct task_struct's cpus_allowed. */