Re: Re: [PATCH -tip v5 12/18] ftrace/kprobes: Use NOKPROBE_SYMBOLmacro in ftrace

From: Masami Hiramatsu
Date: Tue Dec 10 2013 - 03:54:50 EST


(2013/12/10 2:04), Steven Rostedt wrote:
> On Mon, 09 Dec 2013 10:47:46 +0000
> Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx> wrote:
>
>
>> --- a/kernel/trace/trace_probe.h
>> +++ b/kernel/trace/trace_probe.h
>> @@ -124,8 +124,8 @@ struct probe_arg {
>> const struct fetch_type *type; /* Type of this argument */
>> };
>>
>> -static inline __kprobes void call_fetch(struct fetch_param *fprm,
>> - struct pt_regs *regs, void *dest)
>> +static inline void call_fetch(struct fetch_param *fprm,
>> + struct pt_regs *regs, void *dest)
>> {
>> return fprm->fn(regs, fprm->data, dest);
>> }
>>
>
> Is this OK to be probed? I've had cases where a header "static inline"
> was not always inlined. Unless you have "__always_inline" this is not
> guaranteed to be inlined.

Ah, right! I need to change it to __always_inline to prevent
probing on it.

>
> As for the rest of the patch:
>
> Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

Thank you! :)


--
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@xxxxxxxxxxx


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