linux-kernel - Re: [PATCH v2 0/4] Add xxhash and zstd modules

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Date:   Fri, 30 Jun 2017 09:36:41 +0200
From:   David Sterba <dsterba@...e.cz>
To:     Nick Terrell <terrelln@...com>
Cc:     kernel-team@...com, Chris Mason <clm@...com>,
        Yann Collet <cyan@...com>, Adam Borowski <kilobyte@...band.pl>,
        David Sterba <dsterba@...e.cz>,
        squashfs-devel@...ts.sourceforge.net, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/4] Add xxhash and zstd modules

On Thu, Jun 29, 2017 at 12:41:04PM -0700, Nick Terrell wrote:
>  lib/zstd/Makefile          |   18 +
>  lib/zstd/bitstream.h       |  374 +++++
>  lib/zstd/compress.c        | 3479 ++++++++++++++++++++++++++++++++++++++++++++
>  lib/zstd/decompress.c      | 2526 ++++++++++++++++++++++++++++++++
>  lib/zstd/entropy_common.c  |  243 ++++
>  lib/zstd/error_private.h   |   53 +
>  lib/zstd/fse.h             |  575 ++++++++
>  lib/zstd/fse_compress.c    |  795 ++++++++++
>  lib/zstd/fse_decompress.c  |  332 +++++
>  lib/zstd/huf.h             |  212 +++
>  lib/zstd/huf_compress.c    |  771 ++++++++++
>  lib/zstd/huf_decompress.c  |  960 ++++++++++++
>  lib/zstd/mem.h             |  151 ++
>  lib/zstd/zstd_common.c     |   75 +
>  lib/zstd/zstd_internal.h   |  269 ++++
>  lib/zstd/zstd_opt.h        | 1014 +++++++++++++

I don't see patch 2/4 in the mailinglist, probably over the 100kb limit.

The lib/* stuff needs to be merged first, I shouldn't add non-btrfs code
to our regular for-next branch. A testing branch with all the zstd code
can be created, but from the upstream merging process, I don't think we
can avoid two step merging.