Merge branch 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix crash in swevents
  perf buildid-list: Fix --with-hits event processing
  perf scripts python: Give field dict to unhandled callback
  perf hist: fix objdump output parsing
  perf-record: Check correct pid when forking
  perf: Do the comm inheritance per thread in event__process_task
  perf: Use event__process_task from perf sched
  perf: Process comm events by tid
  blktrace: Fix new kernel-doc warnings
  perf_events: Fix unincremented buffer base on partial copy
  perf_events: Fix event scheduling issues introduced by transactional API
  perf_events, trace: Fix perf_trace_destroy(), mutex went missing
  perf_events, trace: Fix probe unregister race
  perf_events: Fix races in group composition
  perf_events: Fix races and clean up perf_event and perf_mmap_data interaction

7 files changed, 45 insertions, 31 deletions

diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 44a47e13bd67..99890728409e 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -43,8 +43,10 @@ static int __cmd_buildid_list(void)
 	if (session == NULL)
 		return -1;
 
-	if (with_hits)
+	if (with_hits) {
+		symbol_conf.full_paths = true;
 		perf_session__process_events(session, &build_id__mark_dso_hit_ops);
+	}
 
 	perf_session__fprintf_dsos_buildid(session, stdout, with_hits);
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 9bc89050e6f8..dc3435e18bde 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -503,7 +503,6 @@ static int __cmd_record(int argc, const char **argv)
 {
 	int i, counter;
 	struct stat st;
-	pid_t pid = 0;
 	int flags;
 	int err;
 	unsigned long waking = 0;
@@ -572,7 +571,7 @@ static int __cmd_record(int argc, const char **argv)
 
 	if (forks) {
 		child_pid = fork();
-		if (pid < 0) {
+		if (child_pid < 0) {
 			perror("failed to fork");
 			exit(-1);
 		}
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index f67bce2a83b4..55f3b5dcc731 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1645,6 +1645,7 @@ static struct perf_event_ops event_ops = {
 	.sample			= process_sample_event,
 	.comm			= event__process_comm,
 	.lost			= event__process_lost,
+	.fork			= event__process_task,
 	.ordered_samples	= true,
 };
 
diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py
index 964d934395ff..d9f7893e315c 100644
--- a/tools/perf/scripts/python/check-perf-trace.py
+++ b/tools/perf/scripts/python/check-perf-trace.py
@@ -51,8 +51,7 @@ def kmem__kmalloc(event_name, context, common_cpu,
 
 		flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
 
-def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
-		common_pid, common_comm):
+def trace_unhandled(event_name, context, event_fields_dict):
     try:
         unhandled[event_name] += 1
     except TypeError:
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 50771b5813ee..1f08f008d289 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -370,9 +370,9 @@ static int thread__set_comm_adjust(struct thread *self, const char *comm)
 
 int event__process_comm(event_t *self, struct perf_session *session)
 {
-	struct thread *thread = perf_session__findnew(session, self->comm.pid);
+	struct thread *thread = perf_session__findnew(session, self->comm.tid);
 
-	dump_printf(": %s:%d\n", self->comm.comm, self->comm.pid);
+	dump_printf(": %s:%d\n", self->comm.comm, self->comm.tid);
 
 	if (thread == NULL || thread__set_comm_adjust(thread, self->comm.comm)) {
 		dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
@@ -532,16 +532,11 @@ out_problem:
 
 int event__process_task(event_t *self, struct perf_session *session)
 {
-	struct thread *thread = perf_session__findnew(session, self->fork.pid);
-	struct thread *parent = perf_session__findnew(session, self->fork.ppid);
+	struct thread *thread = perf_session__findnew(session, self->fork.tid);
+	struct thread *parent = perf_session__findnew(session, self->fork.ptid);
 
 	dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid,
 		    self->fork.ppid, self->fork.ptid);
-	/*
-	 * A thread clone will have the same PID for both parent and child.
-	 */
-	if (thread == parent)
-		return 0;
 
 	if (self->header.type == PERF_RECORD_EXIT)
 		return 0;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cbf7eae2ce09..07f89b66b318 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -965,7 +965,7 @@ static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file,
 		 * Parse hexa addresses followed by ':'
 		 */
 		line_ip = strtoull(tmp, &tmp2, 16);
-		if (*tmp2 != ':')
+		if (*tmp2 != ':' || tmp == tmp2)
 			line_ip = -1;
 	}
 
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 81f39cab3aaa..33a632523743 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -208,7 +208,7 @@ static void python_process_event(int cpu, void *data,
 				 int size __unused,
 				 unsigned long long nsecs, char *comm)
 {
-	PyObject *handler, *retval, *context, *t, *obj;
+	PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
 	static char handler_name[256];
 	struct format_field *field;
 	unsigned long long val;
@@ -232,6 +232,14 @@ static void python_process_event(int cpu, void *data,
 
 	sprintf(handler_name, "%s__%s", event->system, event->name);
 
+	handler = PyDict_GetItemString(main_dict, handler_name);
+	if (handler && !PyCallable_Check(handler))
+		handler = NULL;
+	if (!handler) {
+		dict = PyDict_New();
+		if (!dict)
+			Py_FatalError("couldn't create Python dict");
+	}
 	s = nsecs / NSECS_PER_SEC;
 	ns = nsecs - s * NSECS_PER_SEC;
 
@@ -242,12 +250,20 @@ static void python_process_event(int cpu, void *data,
 	PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
 	PyTuple_SetItem(t, n++,
 			PyCObject_FromVoidPtr(scripting_context, NULL));
-	PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
-	PyTuple_SetItem(t, n++, PyInt_FromLong(s));
-	PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
-	PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
-	PyTuple_SetItem(t, n++, PyString_FromString(comm));
 
+	if (handler) {
+		PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
+		PyTuple_SetItem(t, n++, PyInt_FromLong(s));
+		PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
+		PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
+		PyTuple_SetItem(t, n++, PyString_FromString(comm));
+	} else {
+		PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu));
+		PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s));
+		PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns));
+		PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid));
+		PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm));
+	}
 	for (field = event->format.fields; field; field = field->next) {
 		if (field->flags & FIELD_IS_STRING) {
 			int offset;
@@ -272,27 +288,31 @@ static void python_process_event(int cpu, void *data,
 					obj = PyLong_FromUnsignedLongLong(val);
 			}
 		}
-		PyTuple_SetItem(t, n++, obj);
+		if (handler)
+			PyTuple_SetItem(t, n++, obj);
+		else
+			PyDict_SetItemString(dict, field->name, obj);
+
 	}
+	if (!handler)
+		PyTuple_SetItem(t, n++, dict);
 
 	if (_PyTuple_Resize(&t, n) == -1)
 		Py_FatalError("error resizing Python tuple");
 
-	handler = PyDict_GetItemString(main_dict, handler_name);
-	if (handler && PyCallable_Check(handler)) {
+	if (handler) {
 		retval = PyObject_CallObject(handler, t);
 		if (retval == NULL)
 			handler_call_die(handler_name);
 	} else {
 		handler = PyDict_GetItemString(main_dict, "trace_unhandled");
 		if (handler && PyCallable_Check(handler)) {
-			if (_PyTuple_Resize(&t, N_COMMON_FIELDS) == -1)
-				Py_FatalError("error resizing Python tuple");
 
 			retval = PyObject_CallObject(handler, t);
 			if (retval == NULL)
 				handler_call_die("trace_unhandled");
 		}
+		Py_DECREF(dict);
 	}
 
 	Py_DECREF(t);
@@ -548,12 +568,10 @@ static int python_generate_script(const char *outfile)
 	}
 
 	fprintf(ofp, "def trace_unhandled(event_name, context, "
-		"common_cpu, common_secs, common_nsecs,\n\t\t"
-		"common_pid, common_comm):\n");
+		"event_fields_dict):\n");
 
-	fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
-		"common_secs, common_nsecs,\n\t\tcommon_pid, "
-		"common_comm)\n\n");
+	fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))"
+		"for k,v in sorted(event_fields_dict.items())])\n\n");
 
 	fprintf(ofp, "def print_header("
 		"event_name, cpu, secs, nsecs, pid, comm):\n"