2 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 11cac81eed08..44020f31bd81 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -377,6 +377,16 @@ struct ftrace_graph_ret {
  */
 #define __notrace_funcgraph             notrace
 
+/*
+ * We want to which function is an entrypoint of a hardirq.
+ * That will help us to put a signal on output.
+ */
+#define __irq_entry              __attribute__((__section__(".irqentry.text")))
+
+/* Limits of hardirq entrypoints */
+extern char __irqentry_text_start[];
+extern char __irqentry_text_end[];
+
 #define FTRACE_RETFUNC_DEPTH 50
 #define FTRACE_RETSTACK_ALLOC_SIZE 32
 /* Type of the callback handlers for tracing function graph*/
@@ -414,6 +424,7 @@ static inline void unpause_graph_tracing(void)
 #else
 
 #define __notrace_funcgraph
+#define __irq_entry
 
 static inline void ftrace_graph_init_task(struct task_struct *t) { }
 static inline void ftrace_graph_exit_task(struct task_struct *t) { }
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4b81fc5f7731..dc5ea65dc716 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1176,6 +1176,7 @@ struct task_struct {
          * The buffer to hold the BTS data.
          */
         void *bts_buffer;
+        size_t bts_size;
 #endif /* CONFIG_X86_PTRACE_BTS */
 
         /* PID/PID hash table linkage. */