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Date:   Sun, 10 May 2020 10:16:25 -0400
From:   Sasha Levin <>
To:     Dave Hansen <>
Subject: Re: [PATCH v11 00/18] Enable FSGSBASE instructions

On Sat, May 09, 2020 at 06:40:02PM -0700, Dave Hansen wrote:
>On 5/9/20 10:36 AM, Sasha Levin wrote:
>> Changes from v10:
>>  - Rewrite the commit message for patch #1.
>>  - Document communication/acks from userspace projects that are
>>    potentially affected by this.
>I'm glad someone's pushing this forward.  But, I'm also very curious how
>you came to be submitting this series.  Is this a team effort between
>you, the And[iy]s and Chang?  Or, were you just trying to help out?
>I was hoping to see some acknowledgement of this situation in the cover
>letter but didn't see anything.

What happened here was that v9 needed to be rebased on top of v5.7 which
required some changes. I did the rebase and sent it to Andi and Chang
who have suggested that I'll just send it out myself. There was no
planning beyond that.

My interest in this is that we have a few workloads that value the
ability to access FS/GS base directly and show nice performance
improvement with this patchset. I'm not a fan of carrying stuff out of
tree :)


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