linux-kernel - Re: [PATCH v2 1/2] perf sched: move thread::shortname to thread

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Date:   Wed, 7 Mar 2018 11:44:41 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     changbin.du@...el.com
Cc:     acme@...nel.org, jolsa@...hat.com, peterz@...radead.org,
        mingo@...hat.com, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, kernel-team@....com
Subject: Re: [PATCH v2 1/2] perf sched: move thread::shortname to
 thread_runtime

Hi,

On Tue, Mar 06, 2018 at 11:37:36AM +0800, changbin.du@...el.com wrote:
> From: Changbin Du <changbin.du@...el.com>
> 
> The thread::shortname only used by sched command, so move it
> to sched private structure.
> 
> Signed-off-by: Changbin Du <changbin.du@...el.com>
> ---

[SNIP]
> diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
> index 40cfa36..14d44c3 100644
> --- a/tools/perf/util/thread.h
> +++ b/tools/perf/util/thread.h
> @@ -26,7 +26,6 @@ struct thread {
>  	pid_t			ppid;
>  	int			cpu;
>  	refcount_t		refcnt;
> -	char			shortname[3];
>  	bool			comm_set;
>  	int			comm_len;
>  	bool			dead; /* if set thread has exited */

I also suggest to move the 'dead' field to pack two bools.

Thanks,
Namhyung