linux-kernel - Re: [TRIVIAL PATCH 1/2] doc: trace/kprobes: add information about NOKPROBE

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Message-Id: <20170309085711.84392f1690725687a3a7c0f9@kernel.org>
Date:   Thu, 9 Mar 2017 08:57:11 +0100
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [TRIVIAL PATCH 1/2] doc: trace/kprobes: add information about
 NOKPROBE_SYMBOL

On Wed,  8 Mar 2017 22:34:14 +0530
"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com> wrote:

> Update kprobe tracer documentation to also mention that
> NOKPROBE_SYMBOL() and nokprobe_inline add symbols to the kprobes
> blacklist.

Thanks for update!

Acked-by: Masami Hiramatsu <mhiramat@...nel.org>

> 
> Signed-off-by: Naveen N. Rao <naveen.n.rao@...ux.vnet.ibm.com>
> ---
>  Documentation/trace/kprobetrace.txt | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
> index 41ef9d8efe95..5ea85059db3b 100644
> --- a/Documentation/trace/kprobetrace.txt
> +++ b/Documentation/trace/kprobetrace.txt
> @@ -8,8 +8,9 @@ Overview
>  --------
>  These events are similar to tracepoint based events. Instead of Tracepoint,
>  this is based on kprobes (kprobe and kretprobe). So it can probe wherever
> -kprobes can probe (this means, all functions body except for __kprobes
> -functions). Unlike the Tracepoint based event, this can be added and removed
> +kprobes can probe (this means, all functions except those with
> +__kprobes/nokprobe_inline annotation and those marked NOKPROBE_SYMBOL).
> +Unlike the Tracepoint based event, this can be added and removed
>  dynamically, on the fly.
>  
>  To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y.
> -- 
> 2.11.1
> 


-- 
Masami Hiramatsu <mhiramat@...nel.org>