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

* 'oprofile-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (24 commits)
  oprofile/x86: make AMD IBS hotplug capable
  oprofile/x86: notify cpus only when daemon is running
  oprofile/x86: reordering some functions
  oprofile/x86: stop disabled counters in nmi handler
  oprofile/x86: protect cpu hotplug sections
  oprofile/x86: remove CONFIG_SMP macros
  oprofile/x86: fix uninitialized counter usage during cpu hotplug
  oprofile/x86: remove duplicate IBS capability check
  oprofile/x86: move IBS code
  oprofile/x86: return -EBUSY if counters are already reserved
  oprofile/x86: moving shutdown functions
  oprofile/x86: reserve counter msrs pairwise
  oprofile/x86: rework error handler in nmi_setup()
  oprofile: update file list in MAINTAINERS file
  oprofile: protect from not being in an IRQ context
  oprofile: remove double ring buffering
  ring-buffer: Add lost event count to end of sub buffer
  tracing: Show the lost events in the trace_pipe output
  ring-buffer: Add place holder recording of dropped events
  tracing: Fix compile error in module tracepoints when MODULE_UNLOAD not set
  ...

3 files changed, 7 insertions, 6 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index c0f4b364c711..39e71b0a3bfd 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -58,6 +58,7 @@ struct trace_iterator {
         /* The below is zeroed out in pipe_read */
         struct trace_seq        seq;
         struct trace_entry      *ent;
+        unsigned long           lost_events;
         int                     leftover;
         int                     cpu;
         u64                     ts;
diff --git a/include/linux/module.h b/include/linux/module.h
index 515d53ae6a79..6914fcad4673 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -465,8 +465,7 @@ static inline void __module_get(struct module *module)
         if (module) {
                 preempt_disable();
                 __this_cpu_inc(module->refptr->incs);
-                trace_module_get(module, _THIS_IP_,
-                                 __this_cpu_read(module->refptr->incs));
+                trace_module_get(module, _THIS_IP_);
                 preempt_enable();
         }
 }
@@ -480,8 +479,7 @@ static inline int try_module_get(struct module *module)
 
                 if (likely(module_is_live(module))) {
                         __this_cpu_inc(module->refptr->incs);
-                        trace_module_get(module, _THIS_IP_,
-                                __this_cpu_read(module->refptr->incs));
+                        trace_module_get(module, _THIS_IP_);
                 } else
                         ret = 0;
 
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 5fcc31ed5771..c8297761e414 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -120,9 +120,11 @@ int ring_buffer_write(struct ring_buffer *buffer,
                       unsigned long length, void *data);
 
 struct ring_buffer_event *
-ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts);
+ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts,
+                 unsigned long *lost_events);
 struct ring_buffer_event *
-ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts);
+ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts,
+                    unsigned long *lost_events);
 
 struct ring_buffer_iter *
 ring_buffer_read_start(struct ring_buffer *buffer, int cpu);