Re: [PREVIEW] Add x86 zstd kernel compression

[Renà Rebe]

Hi,

On 10/05/2017 09:22 PM, Nick Terrell wrote:
> On 10/5/17, 1:18 AM, "Renà Rebe" <rene@xxxxxxxxxxxxx> wrote:
> > Hi Nick,
> >
> > On Oct 5, 2017, at 1:29, Nick Terrell <terrelln@xxxxxx> wrote:
> >
> > > On 10/4/17, 3:01 AM, "linux-kernel-owner@xxxxxxxxxxxxxxx on behalf of Renà Rebe" <linux-kernel-owner@xxxxxxxxxxxxxxx on behalf of rene@xxxxxxxxxxxxx> wrote:
> > > > Hi,
> > > >
> > > > I noticed zstd compression was recently added for btrfs and squashfs.
> > > > Are there actually already patches floating around for zstd kernel and intird compression?
> > > > Looks like that would be a quite nice fit regarding speed and compression ratio, â
> > > >
> > > > Regards,
> > > > 	RenÃ
> > >
> > > I started working on some patches yesterday, and just got zstd kernel,
> > > initrd, and initramfs compression working today. I think I'll be ready to
> > > send the patches out within a week.
> >
> > awesome, if you have something to test I could give it a try on my test bench, too.
>
> Here is a preview of the patch, though its not quite ready.
> I believe it works, but I still need to clean it up a bit, and split it
> into the decompression function, the initrd piece, and the x86 specific
> piece. I'll try to get the patch set out this week, and I'll CC you.

thanks for the preview, which I applied cleanly, modulo this white-space 
chunk:

diff --git a/lib/Kconfig b/lib/Kconfig
index b1445b2..02fdcac 100644
@@ -296,7 +300,7 @@ config GENERIC_ALLOCATOR
  #
  config REED_SOLOMON
  	tristate
-
+
  config REED_SOLOMON_ENC8
  	bool
 to the 4.14-rc2 tarball and it compiled and booted on x86-64,
including a zstd initrd!

Great work, will probably start testing it on my personal
laptop, to use the same compression everywhere.

Regards,
	RenÃ

--
  Renà Rebe, ExactCODE GmbH, Lietzenburger Str. 42, DE-10117 Berlin
  http://exactcode.com | http://t2-project.org | http://rene.rebe.de