Commit dced341b authored Jan 14, 2014 by Steven Rostedt (Red Hat) Committed by Steven Rostedt Jan 14, 2014

tracing: Have trace buffer point back to trace_array



The trace buffer has a descriptor pointer that goes back to the trace
array. But it was never assigned. Luckily, nothing uses it (yet), but
it will in the future.

Although nothing currently uses this, if any of the new features get
backported to older kernels, and because this is such a simple change,
I'm marking it for stable too.

Cc: stable@vger.kernel.org # v3.10+
Fixes: 12883efb "tracing: Consolidate max_tr into main trace_array structure"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent a4c35ed2

kernel/trace/trace.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -5914,6 +5914,8 @@ allocate_trace_buffer(struct trace_array tr, struct trace_buffer buf, int size

		rb_flags = trace_flags & TRACE_ITER_OVERWRITE ? RB_FL_OVERWRITE : 0;

		buf->tr = tr;

		buf->buffer = ring_buffer_alloc(size, rb_flags);
		if (!buf->buffer)
		return -ENOMEM;

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