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-rw-r--r--include/linux/ftrace_event.h7
-rw-r--r--include/trace/ftrace.h9
-rw-r--r--kernel/trace/trace.c12
3 files changed, 24 insertions, 4 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index c7191d482f98..fd28c170c597 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -128,6 +128,13 @@ enum print_line_t {
void tracing_generic_entry_update(struct trace_entry *entry,
unsigned long flags,
int pc);
+struct ftrace_event_file;
+
+struct ring_buffer_event *
+trace_event_buffer_lock_reserve(struct ring_buffer **current_buffer,
+ struct ftrace_event_file *ftrace_file,
+ int type, unsigned long len,
+ unsigned long flags, int pc);
struct ring_buffer_event *
trace_current_buffer_lock_reserve(struct ring_buffer **current_buffer,
int type, unsigned long len,
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 191d9661e277..e5d140a91fd7 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -414,7 +414,8 @@ static inline notrace int ftrace_get_offsets_##call( \
*
* static void ftrace_raw_event_<call>(void *__data, proto)
* {
- * struct ftrace_event_call *event_call = __data;
+ * struct ftrace_event_file *ftrace_file = __data;
+ * struct ftrace_event_call *event_call = ftrace_file->event_call;
* struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
* struct ring_buffer_event *event;
* struct ftrace_raw_<call> *entry; <-- defined in stage 1
@@ -428,7 +429,7 @@ static inline notrace int ftrace_get_offsets_##call( \
*
* __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
*
- * event = trace_current_buffer_lock_reserve(&buffer,
+ * event = trace_event_buffer_lock_reserve(&buffer, ftrace_file,
* event_<call>->event.type,
* sizeof(*entry) + __data_size,
* irq_flags, pc);
@@ -440,7 +441,7 @@ static inline notrace int ftrace_get_offsets_##call( \
* __array macros.
*
* if (!filter_current_check_discard(buffer, event_call, entry, event))
- * trace_current_buffer_unlock_commit(buffer,
+ * trace_nowake_buffer_unlock_commit(buffer,
* event, irq_flags, pc);
* }
*
@@ -533,7 +534,7 @@ ftrace_raw_event_##call(void *__data, proto) \
\
__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
\
- event = trace_current_buffer_lock_reserve(&buffer, \
+ event = trace_event_buffer_lock_reserve(&buffer, ftrace_file, \
event_call->event.type, \
sizeof(*entry) + __data_size, \
irq_flags, pc); \
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 91fe40905828..29bff72f97ef 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1294,6 +1294,18 @@ void trace_buffer_unlock_commit(struct ring_buffer *buffer,
EXPORT_SYMBOL_GPL(trace_buffer_unlock_commit);
struct ring_buffer_event *
+trace_event_buffer_lock_reserve(struct ring_buffer **current_rb,
+ struct ftrace_event_file *ftrace_file,
+ int type, unsigned long len,
+ unsigned long flags, int pc)
+{
+ *current_rb = ftrace_file->tr->buffer;
+ return trace_buffer_lock_reserve(*current_rb,
+ type, len, flags, pc);
+}
+EXPORT_SYMBOL_GPL(trace_event_buffer_lock_reserve);
+
+struct ring_buffer_event *
trace_current_buffer_lock_reserve(struct ring_buffer **current_rb,
int type, unsigned long len,
unsigned long flags, int pc)