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From: Thomas Munro <tmunro@freebsd.org>
Date: Mon, 22 Jun 2020 16:58:51 +1200
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Subject: Re: svn commit: r362460 - in head/sys: compat/cloudabi fs/devfs kern
 sys
To: "Piotr P. Stefaniak" <pstef@freebsd.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, 
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On Sun, Jun 21, 2020 at 9:35 PM Piotr P. Stefaniak <pstef@freebsd.org> wrote:
> On 2020-06-21 08:51:24, Thomas Munro wrote:
> >Author: tmunro
> >Date: Sun Jun 21 08:51:24 2020
> >New Revision: 362460
> >URL: https://svnweb.freebsd.org/changeset/base/362460
> >
> >Log:
> >  vfs: track sequential reads and writes separately
>
> This sounds great to me! Have you considered MFC-ing this?

Aside from whether it's a good idea, I wasn't assuming that was going
to be possible (for example "Remove ->f_label from struct file" was
not marked for MFC).  I'm still trying to learn about the ABI
stability rules...