linux-kernel - Re: [PATCH v1 31/31] x86/resctrl: Move the resctrl filesystem code to /fs/resctrl

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Date: Tue, 26 Mar 2024 12:44:26 -0700
From: Fenghua Yu <fenghua.yu@...el.com>
To: James Morse <james.morse@....com>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>
CC: Reinette Chatre <reinette.chatre@...el.com>, Thomas Gleixner
	<tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov
	<bp@...en8.de>, H Peter Anvin <hpa@...or.com>, Babu Moger
	<Babu.Moger@....com>, <shameerali.kolothum.thodi@...wei.com>, "D Scott
 Phillips OS" <scott@...amperecomputing.com>, <carl@...amperecomputing.com>,
	<lcherian@...vell.com>, <bobo.shaobowang@...wei.com>,
	<tan.shaopeng@...itsu.com>, <baolin.wang@...ux.alibaba.com>, Jamie Iles
	<quic_jiles@...cinc.com>, Xin Hao <xhao@...ux.alibaba.com>,
	<peternewman@...gle.com>, <dfustini@...libre.com>, <amitsinght@...vell.com>,
	David Hildenbrand <david@...hat.com>, Rex Nie <rex.nie@...uarmicro.com>, Dave
 Martin <dave.martin@....com>
Subject: Re: [PATCH v1 31/31] x86/resctrl: Move the resctrl filesystem code to
 /fs/resctrl

Hi, James,

On 3/21/24 09:51, James Morse wrote:
> resctrl is linux's defacto interface for managing cache and bandwidth
> policies for groups of tasks.
> 
> To allow other architectures to make use of this pseudo filesystem,
> move it live in /fs/resctrl instead of /arch/x86.
> 
> This move leaves behind the parts of resctrl that form the architecture
> interface for x86.
> 
> Signed-off-by: James Morse <james.morse@....com>
> ---
> Discussion needed on how/when to merge this, as it would conflict with
> all outstanding series. It's probably worth deferring to some opportune
> time, but is included here for illustration.
> ---
>   arch/x86/kernel/cpu/resctrl/core.c        |   15 -
>   arch/x86/kernel/cpu/resctrl/ctrlmondata.c |  505 ---
>   arch/x86/kernel/cpu/resctrl/internal.h    |  310 --
>   arch/x86/kernel/cpu/resctrl/monitor.c     |  821 -----
>   arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 1093 ------
>   arch/x86/kernel/cpu/resctrl/rdtgroup.c    | 3994 --------------------
>   fs/resctrl/ctrlmondata.c                  |  527 +++
>   fs/resctrl/internal.h                     |  340 ++
>   fs/resctrl/monitor.c                      |  843 +++++
>   fs/resctrl/psuedo_lock.c                  | 1122 ++++++
>   fs/resctrl/rdtgroup.c                     | 4013 +++++++++++++++++++++
>   11 files changed, 6845 insertions(+), 6738 deletions(-)
> 

checkpatch reports warnings and checks on this patch. Please fix them. e.g.

CHECK: Blank lines aren't necessary before a close brace '}'
#13340: FILE: fs/resctrl/rdtgroup.c:3184:
+
+	}

Thanks.

-Fenghua