linux-kernel - Re: [PATCH v9 6/9] x86/resctrl: Move default group file creation to mount

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Message-ID: <d23cd6c1-17c1-57a0-a1fb-2d3516e3ef88@intel.com>
Date:   Mon, 11 Sep 2023 16:05:13 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Babu Moger <babu.moger@....com>, <corbet@....net>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>
CC:     <fenghua.yu@...el.com>, <dave.hansen@...ux.intel.com>,
        <x86@...nel.org>, <hpa@...or.com>, <paulmck@...nel.org>,
        <akpm@...ux-foundation.org>, <quic_neeraju@...cinc.com>,
        <rdunlap@...radead.org>, <damien.lemoal@...nsource.wdc.com>,
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        <jpoimboe@...nel.org>, <pbonzini@...hat.com>,
        <chang.seok.bae@...el.com>, <pawan.kumar.gupta@...ux.intel.com>,
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        <james.morse@....com>, <linux-doc@...r.kernel.org>,
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        <jarkko@...nel.org>, <adrian.hunter@...el.com>,
        <quic_jiles@...cinc.com>, <peternewman@...gle.com>
Subject: Re: [PATCH v9 6/9] x86/resctrl: Move default group file creation to
 mount

Hi Babu,

On 9/7/2023 4:51 PM, Babu Moger wrote:
> The default resource group and its files are created during kernel
> init time. Upcoming changes will make some resctrl files optional
> based on a mount parameter. If optional files are to be added to the
> default group based on the mount option, then each new file needs to
> be created separately and call kernfs_activate() again.
> 
> Create all files of the default resource group during resctrl
> mount, destroyed during unmount, to avoid scattering resctrl
> file addition across two separate code flows.
> 
> Suggested-by: Reinette Chatre <reinette.chatre@...el.com>
> Signed-off-by: Babu Moger <babu.moger@....com>

Thank you.

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

Reinette