Re: [PATCH RFC] mm: Add f_ops->populate()

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To: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
Subject: Re: [PATCH RFC] mm: Add f_ops->populate()
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Sun, 6 Mar 2022 04:36:03 +0000
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Nathaniel McCallum <nathaniel@xxxxxxxxxxx>, Reinette Chatre <reinette.chatre@xxxxxxxxx>, linux-sgx@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, codalist@xxxxxxxxxxxxxxxxxxxxxxxx, linux-unionfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <YiQ30O/5LGh84z3t@iki.fi>
References: <20220306021534.83553-1-jarkko@kernel.org> <YiQjM7LdwoAWpC5L@casper.infradead.org> <YiQop71ABWm7hbMy@iki.fi> <YiQv7JEBPzgYUTTa@casper.infradead.org> <YiQ0aWhwY4BGLEMK@iki.fi> <YiQ2ThvkvnBBFRzD@casper.infradead.org> <YiQ30O/5LGh84z3t@iki.fi>

On Sun, Mar 06, 2022 at 06:25:52AM +0200, Jarkko Sakkinen wrote:
> > Are you deliberately avoiding the question?  I'm not asking about
> > implementation.  I'm asking about the semantics of MAP_POPULATE with
> > your driver.
> 
> No. I just noticed a bug in the guard from your comment that I wanted
> point out.
> 
> With the next version I post the corresponding change to the driver,
> in order to see this in context.

Oh, good grief.  Don't bother.  NAK.

References:
- [PATCH RFC] mm: Add f_ops->populate()
  - From: Jarkko Sakkinen
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Matthew Wilcox
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Jarkko Sakkinen
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Matthew Wilcox
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Jarkko Sakkinen
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Matthew Wilcox
- Re: [PATCH RFC] mm: Add f_ops->populate()
  - From: Jarkko Sakkinen

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