Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (241 commits)
  sched, trace: update trace_sched_wakeup()
  tracing/ftrace: don't trace on early stage of a secondary cpu boot, v3
  Revert "x86: disable X86_PTRACE_BTS"
  ring-buffer: prevent false positive warning
  ring-buffer: fix dangling commit race
  ftrace: enable format arguments checking
  x86, bts: memory accounting
  x86, bts: add fork and exit handling
  ftrace: introduce tracing_reset_online_cpus() helper
  tracing: fix warnings in kernel/trace/trace_sched_switch.c
  tracing: fix warning in kernel/trace/trace.c
  tracing/ring-buffer: remove unused ring_buffer size
  trace: fix task state printout
  ftrace: add not to regex on filtering functions
  trace: better use of stack_trace_enabled for boot up code
  trace: add a way to enable or disable the stack tracer
  x86: entry_64 - introduce FTRACE_ frame macro v2
  tracing/ftrace: add the printk-msg-only option
  tracing/ftrace: use preempt_enable_no_resched_notrace in ring_buffer_time_stamp()
  x86, bts: correctly report invalid bts records
  ...

Fixed up trivial conflict in scripts/recordmcount.pl due to SH bits
being already partly merged by the SH merge.

1 files changed, 12 insertions, 4 deletions

diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index e097c2e6b6dc..d363467c8f13 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -28,17 +28,19 @@ struct ring_buffer_event {
  *				 size = 8 bytes
  *
  * @RINGBUF_TYPE_TIME_STAMP:	Sync time stamp with external clock
- *				 array[0] = tv_nsec
- *				 array[1] = tv_sec
+ *				 array[0]    = tv_nsec
+ *				 array[1..2] = tv_sec
  *				 size = 16 bytes
  *
  * @RINGBUF_TYPE_DATA:		Data record
  *				 If len is zero:
  *				  array[0] holds the actual length
- *				  array[1..(length+3)/4-1] holds data
+ *				  array[1..(length+3)/4] holds data
+ *				  size = 4 + 4 + length (bytes)
  *				 else
  *				  length = len << 2
- *				  array[0..(length+3)/4] holds data
+ *				  array[0..(length+3)/4-1] holds data
+ *				  size = 4 + length (bytes)
  */
 enum ring_buffer_type {
 	RINGBUF_TYPE_PADDING,
@@ -122,6 +124,12 @@ void ring_buffer_normalize_time_stamp(int cpu, u64 *ts);
 
 void tracing_on(void);
 void tracing_off(void);
+void tracing_off_permanent(void);
+
+void *ring_buffer_alloc_read_page(struct ring_buffer *buffer);
+void ring_buffer_free_read_page(struct ring_buffer *buffer, void *data);
+int ring_buffer_read_page(struct ring_buffer *buffer,
+			  void **data_page, int cpu, int full);
 
 enum ring_buffer_flags {
 	RB_FL_OVERWRITE		= 1 << 0,