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Message-ID: <ee050b2dce3a233318748df416be0ebff4402ed2.camel@infradead.org>
Subject: Re: [RFC PATCH v2] jffs2: add support for zstd compression
From:   David Woodhouse <dwmw2@infradead.org>
To:     Rui Salvaterra <rsalvaterra@gmail.com>,
        linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     lizhe67@huawei.com, christian.brauner@ubuntu.com,
        gustavoars@kernel.org, trix@redhat.com, keescook@chromium.org
Date:   Mon, 26 Apr 2021 09:24:03 +0100
In-Reply-To: <CALjTZvaX8miSycr4oGmF_rGN4KWWBzfyBj1-7jefT=Uz3w9Oww@mail.gmail.com>
References: <20210316141916.447493-1-rsalvaterra@gmail.com>
         <CALjTZvaX8miSycr4oGmF_rGN4KWWBzfyBj1-7jefT=Uz3w9Oww@mail.gmail.com>
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On Thu, 2021-03-25 at 14:47 +0000, Rui Salvaterra wrote:
> Friendly ping (and also cc'ing dwmw2).
>=20
> On Tue, 16 Mar 2021 at 14:19, Rui Salvaterra <rsalvaterra@gmail.com> wrot=
e:
> >=20
> > Implement support for zstd compression in jffs2 at the default compress=
ion
> > level (3).
> >=20
> > Lightly tested in OpenWrt, on a single CPU embedded MIPS32 system (AirG=
rid M2).

Seems reasonable. Do you have the corresponding addition for mkfs.jffs2
and can you report the boot time / image sizes with it vs. zlib on a
typical platform?

And if it doesn't make a difference to boot time or image size... why
are we doing it?

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