tracing: Remove second iterator initializer (38dbe0b1) · Commits · 戴 / test

The trace iterator is already initialized by trace_init_global_iter(), so there is no need to initialize it again. Link: http://lkml.kernel.org/r/CACV3sb+G1YnO6168JhY3dEadmJi58pA5-2cSZT8E0WVHJNFt9Q@mail.gmail.com Signed-off-by:

kernel/trace/trace.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -5030,6 +5030,7 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode)
		if (disable_tracing)
		ftrace_kill();

		/* Simulate the iterator */
		trace_init_global_iter(&iter);

		for_each_tracing_cpu(cpu) {
		@@ -5041,10 +5042,6 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode)
		/* don't look at user memory in panic mode */
		trace_flags &= ~TRACE_ITER_SYM_USEROBJ;

		/* Simulate the iterator */
		iter.tr = &global_trace;
		iter.trace = current_trace;

		switch (oops_dump_mode) {
		case DUMP_ALL:
		iter.cpu_file = TRACE_PIPE_ALL_CPU;