4 files changed, 24 insertions, 2 deletions

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index eba835a2c2cd..c61fab1dd2f8 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -288,6 +288,16 @@
                 *(.kprobes.text)                                        \
                 VMLINUX_SYMBOL(__kprobes_text_end) = .;
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+#define IRQENTRY_TEXT                                                   \
+                ALIGN_FUNCTION();                                       \
+                VMLINUX_SYMBOL(__irqentry_text_start) = .;              \
+                *(.irqentry.text)                                       \
+                VMLINUX_SYMBOL(__irqentry_text_end) = .;
+#else
+#define IRQENTRY_TEXT
+#endif
+
 /* Section used for early init (in .S files) */
 #define HEAD_TEXT  *(.head.text)
 
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. */
diff --git a/include/trace/sched.h b/include/trace/sched.h
index 9b2854abf7e2..f4549d506b16 100644
--- a/include/trace/sched.h
+++ b/include/trace/sched.h
@@ -30,8 +30,8 @@ DECLARE_TRACE(sched_switch,
                 TPARGS(rq, prev, next));
 
 DECLARE_TRACE(sched_migrate_task,
-        TPPROTO(struct rq *rq, struct task_struct *p, int dest_cpu),
-                TPARGS(rq, p, dest_cpu));
+        TPPROTO(struct task_struct *p, int orig_cpu, int dest_cpu),
+                TPARGS(p, orig_cpu, dest_cpu));
 
 DECLARE_TRACE(sched_process_free,
         TPPROTO(struct task_struct *p),