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Date:   Fri, 17 Jan 2020 08:22:01 -0800
From:   Omar Sandoval <>
To:     David Howells <>
Cc:     Colin Walters <>,
        Al Viro <>,, Christoph Hellwig <>,
        Theodore Ts'o <>,,
        "Darrick J. Wong" <>,
        Chris Mason <>,,, linux-ext4 <>,
        xfs <>,,
Subject: Re: Making linkat() able to overwrite the target

On Fri, Jan 17, 2020 at 11:42:55AM +0000, David Howells wrote:
> Hi Omar,
> Do you still have your AT_REPLACE patches?  You said that you'd post a v4
> series, though I don't see it.  I could make use of such a feature in
> cachefiles inside the kernel.  For my original question, see:
> And do you have ext4 support for it?


Yes I still have those patches lying around and I'd be happy to dust
them off and resend them. I don't have ext4 support. I'd be willing to
take a stab at ext4 once Al is happy with the VFS part unless someone
more familiar with ext4 wants to contribute that support.

Thanks for reviving interesting in this!

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