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Diffstat (limited to 'include/trace/ftrace.h')
-rw-r--r--include/trace/ftrace.h21
1 files changed, 17 insertions, 4 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index a9377c0083ad..e16610c208c9 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -82,6 +82,10 @@
TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(name, value) \
+ __TRACE_EVENT_FLAGS(name, value)
+
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
@@ -129,6 +133,9 @@
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
+#undef TRACE_EVENT_FLAGS
+#define TRACE_EVENT_FLAGS(event, flag)
+
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/*
@@ -289,13 +296,19 @@ static struct trace_event_functions ftrace_event_type_funcs_##call = { \
#undef __array
#define __array(type, item, len) \
- BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
- ret = trace_define_field(event_call, #type "[" #len "]", #item, \
+ do { \
+ mutex_lock(&event_storage_mutex); \
+ BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
+ snprintf(event_storage, sizeof(event_storage), \
+ "%s[%d]", #type, len); \
+ ret = trace_define_field(event_call, event_storage, #item, \
offsetof(typeof(field), item), \
sizeof(field.item), \
is_signed_type(type), FILTER_OTHER); \
- if (ret) \
- return ret;
+ mutex_unlock(&event_storage_mutex); \
+ if (ret) \
+ return ret; \
+ } while (0);
#undef __dynamic_array
#define __dynamic_array(type, item, len) \