From: Reinette Chatre <reinette.chatre@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: tglx@linutronix.de, fenghua.yu@intel.com, tony.luck@intel.com,
kuo-lang.tseng@intel.com, shakeelb@google.com,
valentin.schneider@arm.com, mingo@redhat.com, babu.moger@amd.com,
james.morse@arm.com, hpa@zytor.com, x86@kernel.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 1/3] x86/resctrl: Move setting task's active CPU in a mask into helpers
Date: Tue, 8 Dec 2020 08:35:09 -0800 [thread overview]
Message-ID: <fa4bb98e-0084-1c45-8999-352f1274b238@intel.com> (raw)
In-Reply-To: <20201208094907.GB27920@zn.tnic>
Hi Borislav,
On 12/8/2020 1:49 AM, Borislav Petkov wrote:
> On Mon, Dec 07, 2020 at 01:24:51PM -0800, Reinette Chatre wrote:
>> How about:
>> "Move the setting of the CPU on which a task is running in a CPU mask into a
>> couple of helpers.
>>
>> There is no functional change. This is a preparatory change for the fix in
>> the following patch from where the Fixes tag is copied."
>
> Almost. Just not call it a "following patch" because once this is
> applied, the following one might be a different one depending on the
> ordering a git command has requested. So a "later patch" would be
> probably better.
Indeed, will do. Thank you.
>
>> Correct. I will add it. The addition to the commit message above aims to
>> explain a Fixes tag to a patch with no functional changes.
>
> Yes but you need to tell the stable people somehow that this one is a
> prerequisite and that they should pick it up too.
Right. Thanks for guiding here.
>
> Unless you can reorg your code this way that you don't need patch 1...
I think that the current organization, with patch 1 containing the
preparatory work without functional changes, makes the fix in patch 2
easier to review. I thus plan to keep the code organization as is while
surely following your suggestion on how to support the stable team.
Thank you very much
Reinette
next prev parent reply other threads:[~2020-12-08 16:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 23:25 [PATCH 0/3] x86/resctrl: Fix a few issues in moving a task to a resource group Reinette Chatre
2020-12-03 23:25 ` [PATCH 1/3] x86/resctrl: Move setting task's active CPU in a mask into helpers Reinette Chatre
2020-12-07 18:29 ` Borislav Petkov
2020-12-07 21:24 ` Reinette Chatre
2020-12-08 9:49 ` Borislav Petkov
2020-12-08 16:35 ` Reinette Chatre [this message]
2020-12-09 16:47 ` James Morse
2020-12-10 0:21 ` Reinette Chatre
2020-12-03 23:25 ` [PATCH 2/3] x86/resctrl: Update PQR_ASSOC MSR synchronously when moving task to resource group Reinette Chatre
2020-12-09 16:51 ` James Morse
2020-12-10 0:22 ` Reinette Chatre
2020-12-11 20:46 ` Valentin Schneider
2020-12-14 18:41 ` Reinette Chatre
2020-12-16 17:41 ` Valentin Schneider
2020-12-16 18:26 ` Reinette Chatre
2020-12-17 10:39 ` Valentin Schneider
2020-12-03 23:25 ` [PATCH 3/3] x86/resctrl: Don't move a task to the same " Reinette Chatre
2020-12-11 20:46 ` [PATCH 0/3] x86/resctrl: Fix a few issues in moving a task to a " Valentin Schneider
2020-12-14 18:38 ` Reinette Chatre
2020-12-16 17:41 ` Valentin Schneider
2020-12-16 18:26 ` Reinette Chatre
2020-12-17 12:19 ` [PATCH 4/3] x86/intel_rdt: Apply READ_ONCE/WRITE_ONCE to task_struct .rmid & .closid Valentin Schneider
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