diff options
| author | Steven Rostedt <srostedt@redhat.com> | 2012-08-02 10:32:10 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-03-15 00:34:42 -0400 |
| commit | ccb469a198cffac94a7eea0b69f715f06e2ddf15 (patch) | |
| tree | a4de18987f64f115373a22379eef17d6d30ce9b8 /kernel/trace/trace.c | |
| parent | 2b6080f28c7cc3efc8625ab71495aae89aeb63a0 (diff) | |
tracing: Pass the ftrace_file to the buffer lock reserve code
Pass the struct ftrace_event_file *ftrace_file to the
trace_event_buffer_lock_reserve() (new function that replaces the
trace_current_buffer_lock_reserver()).
The ftrace_file holds a pointer to the trace_array that is in use.
In the case of multiple buffers with different trace_arrays, this
allows different events to be recorded into different buffers.
Also fixed some of the stale comments in include/trace/ftrace.h
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 91fe4090582..29bff72f97e 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) |