Merge remote branch 'lttng/2.6.38-lttng-0.247'

Conflicts:
	arch/arm/kernel/traps.c
	arch/arm/mach-omap2/clock34xx.c
	arch/arm/mach-omap2/pm34xx.c

4 files changed, 67 insertions, 4 deletions

diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 65eb85976a0..34ba6e0a4d8 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -100,7 +100,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_POLLING_NRFLAG	3	/* true if poll_idle() is polling
 					   TIF_NEED_RESCHED */
 #define TIF_32BIT		4	/* 32 bit binary */
-#define TIF_PERFMON_WORK	5	/* work for pfm_handle_work() */
+#define TIF_KERNEL_TRACE	5	/* kernel trace active */
 #define TIF_PERFMON_CTXSW	6	/* perfmon needs ctxsw calls */
 #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_SINGLESTEP		8	/* singlestepping active */
@@ -111,6 +111,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOTIFY_RESUME	13	/* callback before returning to user */
 #define TIF_FREEZE		14	/* Freezing for suspend */
 #define TIF_RUNLATCH		15	/* Is the runlatch enabled? */
+#define TIF_PERFMON_WORK	16	/* work for pfm_handle_work() */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -118,7 +119,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1<<TIF_32BIT)
-#define _TIF_PERFMON_WORK	(1<<TIF_PERFMON_WORK)
+#define _TIF_KERNEL_TRACE	(1<<TIF_KERNEL_TRACE)
 #define _TIF_PERFMON_CTXSW	(1<<TIF_PERFMON_CTXSW)
 #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SINGLESTEP		(1<<TIF_SINGLESTEP)
@@ -128,7 +129,8 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
 #define _TIF_FREEZE		(1<<TIF_FREEZE)
 #define _TIF_RUNLATCH		(1<<TIF_RUNLATCH)
-#define _TIF_SYSCALL_T_OR_A	(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
+#define _TIF_PERFMON_WORK	(1<<TIF_PERFMON_WORK)
+#define _TIF_SYSCALL_T_OR_A	(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP|_TIF_KERNEL_TRACE)
 
 #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
 				 _TIF_NOTIFY_RESUME)
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index c55e14f7ef4..2fe7460cbf9 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -14,6 +14,8 @@
 
 typedef unsigned long cycles_t;
 
+extern unsigned long tb_ticks_per_sec;
+
 static inline cycles_t get_cycles(void)
 {
 #ifdef __powerpc64__
@@ -46,5 +48,15 @@ static inline cycles_t get_cycles(void)
 #endif
 }
 
+static inline cycles_t get_cycles_rate(void)
+{
+	return tb_ticks_per_sec;
+}
+
+static inline void get_cycles_barrier(void)
+{
+	isync();
+}
+
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_TIMEX_H */
diff --git a/arch/powerpc/include/asm/trace-clock.h b/arch/powerpc/include/asm/trace-clock.h
new file mode 100644
index 00000000000..05facc3e372
--- /dev/null
+++ b/arch/powerpc/include/asm/trace-clock.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2005,2008 Mathieu Desnoyers
+ *
+ * Trace clock PowerPC definitions.
+ *
+ * Use get_tb() directly to insure reading a 64-bits value on powerpc 32.
+ */
+
+#ifndef _ASM_TRACE_CLOCK_H
+#define _ASM_TRACE_CLOCK_H
+
+#include <linux/timex.h>
+#include <linux/time.h>
+#include <asm/time.h>
+
+static inline u32 trace_clock_read32(void)
+{
+	return get_tbl();
+}
+
+static inline u64 trace_clock_read64(void)
+{
+	return get_tb();
+}
+
+static inline unsigned int trace_clock_frequency(void)
+{
+	return get_cycles_rate();
+}
+
+static inline u32 trace_clock_freq_scale(void)
+{
+	return 1;
+}
+
+static inline int get_trace_clock(void)
+{
+	return 0;
+}
+
+static inline void put_trace_clock(void)
+{
+}
+
+static inline void set_trace_clock_is_sync(int state)
+{
+}
+#endif /* _ASM_TRACE_CLOCK_H */
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index cbe2297d68b..d1c27723f84 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -7,7 +7,7 @@
 #include <linux/tracepoint.h>
 
 struct pt_regs;
-
+#if 0 /* disabled by Mathieu Desnoyers. Belongs to generic IRQS. */
 TRACE_EVENT(irq_entry,
 
 	TP_PROTO(struct pt_regs *regs),
@@ -41,6 +41,7 @@ TRACE_EVENT(irq_exit,
 
 	TP_printk("pt_regs=%p", __entry->regs)
 );
+#endif //0
 
 TRACE_EVENT(timer_interrupt_entry,