Re: [PATCH -next] tracing/histogram: Update document for KEYS_MAX size

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On Mon, 17 Oct 2022 10:38:06 +0000
Zheng Yejian <zhengyejian1@xxxxxxxxxx> wrote:

> After commit 4f36c2d85ced ("tracing: Increase tracing map KEYS_MAX size"),
> 'keys' supports up to three fields.

This looks good to me.

Acked-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Steve, do you this this document fix should go into the stable trees?

Thank you,

> 
> Signed-off-by: Zheng Yejian <zhengyejian1@xxxxxxxxxx>
> ---
>  Documentation/trace/histogram.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
> index c1b685a38f6b..87bd772836c0 100644
> --- a/Documentation/trace/histogram.rst
> +++ b/Documentation/trace/histogram.rst
> @@ -39,7 +39,7 @@ Documentation written by Tom Zanussi
>    will use the event's kernel stacktrace as the key.  The keywords
>    'keys' or 'key' can be used to specify keys, and the keywords
>    'values', 'vals', or 'val' can be used to specify values.  Compound
> -  keys consisting of up to two fields can be specified by the 'keys'
> +  keys consisting of up to three fields can be specified by the 'keys'
>    keyword.  Hashing a compound key produces a unique entry in the
>    table for each unique combination of component keys, and can be
>    useful for providing more fine-grained summaries of event data.
> -- 
> 2.25.1
> 


-- 
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>



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