tracing: Fix userstacktrace option for instances
commit5.4-rM2-2.2.x-imx-squashedbcee527895
upstream. When the instances were able to use their own options, the userstacktrace option was left hardcoded for the top level. This made the instance userstacktrace option bascially into a nop, and will confuse users that set it, but nothing happens (I was confused when it happened to me!) Cc: stable@vger.kernel.org Fixes:16270145ce
("tracing: Add trace options for core options to instances") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -160,7 +160,8 @@ static union trace_eval_map_item *trace_eval_maps;
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#endif /* CONFIG_TRACE_EVAL_MAP_FILE */
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static int tracing_set_tracer(struct trace_array *tr, const char *buf);
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static void ftrace_trace_userstack(struct ring_buffer *buffer,
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static void ftrace_trace_userstack(struct trace_array *tr,
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struct ring_buffer *buffer,
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unsigned long flags, int pc);
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#define MAX_TRACER_SIZE 100
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@ -2621,7 +2622,7 @@ void trace_buffer_unlock_commit_regs(struct trace_array *tr,
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* two. They are not that meaningful.
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*/
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ftrace_trace_stack(tr, buffer, flags, regs ? 0 : STACK_SKIP, pc, regs);
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ftrace_trace_userstack(buffer, flags, pc);
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ftrace_trace_userstack(tr, buffer, flags, pc);
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}
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/*
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@ -2936,13 +2937,14 @@ EXPORT_SYMBOL_GPL(trace_dump_stack);
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static DEFINE_PER_CPU(int, user_stack_count);
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static void
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ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc)
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ftrace_trace_userstack(struct trace_array *tr,
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struct ring_buffer *buffer, unsigned long flags, int pc)
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{
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struct trace_event_call *call = &event_user_stack;
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struct ring_buffer_event *event;
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struct userstack_entry *entry;
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if (!(global_trace.trace_flags & TRACE_ITER_USERSTACKTRACE))
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if (!(tr->trace_flags & TRACE_ITER_USERSTACKTRACE))
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return;
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/*
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@ -2981,7 +2983,8 @@ ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc)
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preempt_enable();
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}
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#else /* CONFIG_USER_STACKTRACE_SUPPORT */
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static void ftrace_trace_userstack(struct ring_buffer *buffer,
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static void ftrace_trace_userstack(struct trace_array *tr,
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struct ring_buffer *buffer,
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unsigned long flags, int pc)
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{
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}
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