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authorIngo Molnar <mingo@elte.hu>2009-04-07 14:41:14 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 14:41:17 +0200
commit86665c75da41889f92b774f31ea5a9a436f392a8 (patch)
tree94b003ab677a64b7d0a6dcca1f636bbbc2a187c9 /include/linux/ftrace.h
parent93776a8ec746cf9d32c36e5a5b23d28d8be28826 (diff)
parent1bbe2a83ab68e5cf8c66c372c7cb3b51910c2cfe (diff)
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Merge branch 'tracing/urgent' into tracing/ftrace
Diffstat (limited to 'include/linux/ftrace.h')
-rw-r--r--include/linux/ftrace.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 9e0a8d245e55..6aea54d2dd3e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -356,6 +356,9 @@ struct ftrace_graph_ret {
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+/* for init task */
+#define INIT_FTRACE_GRAPH .ret_stack = NULL
+
/*
* Stack of return addresses for functions
* of a thread.
@@ -429,10 +432,11 @@ static inline void unpause_graph_tracing(void)
{
atomic_dec(&current->tracing_graph_pause);
}
-#else
+#else /* !CONFIG_FUNCTION_GRAPH_TRACER */
#define __notrace_funcgraph
#define __irq_entry
+#define INIT_FTRACE_GRAPH
static inline void ftrace_graph_init_task(struct task_struct *t) { }
static inline void ftrace_graph_exit_task(struct task_struct *t) { }
@@ -444,7 +448,7 @@ static inline int task_curr_ret_stack(struct task_struct *tsk)
static inline void pause_graph_tracing(void) { }
static inline void unpause_graph_tracing(void) { }
-#endif
+#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
#ifdef CONFIG_TRACING
#include <linux/sched.h>