linux-kernel - Re: [PATCH v4 06/16] selftests/resctrl: Cleanup bm

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Message-ID: <8b437845-8132-40e6-b442-1b85e5b8aae6@intel.com>
Date: Wed, 29 May 2024 10:44:18 -0700
From: Reinette Chatre <reinette.chatre@...el.com>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	<linux-kselftest@...r.kernel.org>, Shuah Khan <shuah@...nel.org>, Babu Moger
	<babu.moger@....com>, Maciej Wieczór-Retman
	<maciej.wieczor-retman@...el.com>
CC: <linux-kernel@...r.kernel.org>, Fenghua Yu <fenghua.yu@...el.com>, "Shuah
 Khan" <skhan@...uxfoundation.org>
Subject: Re: [PATCH v4 06/16] selftests/resctrl: Cleanup bm_pid and ppid usage
 & limit scope

Hi Ilpo,

On 5/20/24 5:30 AM, Ilpo Järvinen wrote:
> 'bm_pid' and 'ppid' are global variables. As they are used by different
> processes and in signal handler, they cannot be entirely converted into
> local variables.
> 
> The scope of those variables can still be reduced into resctrl_val.c
> only. As PARENT_EXIT() macro is using 'ppid', make it a function in
> resctrl_val.c and pass ppid to it as an argument because it is easier
> to understand than using the global variable directly.
> 
> Pass 'bm_pid' into measure_val() instead of relying on the global
> variable which helps to make the call signatures of measure_val() and
> measure_llc_resctrl() more similar to each other.

measure_val() -> measure_vals() (in two places above)

> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> ---

With typos fixed:

| Reviewed-by: Reinette Chatre <reinette.chatre@...el.com>

Reinette