linux-kernel - RE: [PATCH 0/3] Update LZO compression

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Message-ID: <0eda185f-0c8c-4928-baa9-9bb0cc43e43d@default>
Date:	Thu, 20 Dec 2012 18:03:33 -0800 (PST)
From:	Dan Magenheimer <dan.magenheimer@...cle.com>
To:	"Markus F.X.J. Oberhumer" <markus@...rhumer.com>,
	Arnd Bergmann <arnd@...db.de>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Johannes Stezenbach <js@...21.net>,
	richard -rw- weinberger <richard.weinberger@...il.com>,
	linux-btrfs@...r.kernel.org, linux-crypto@...r.kernel.org,
	Artem Bityutskiy <dedekind1@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Phillip Lougher <phillip@...ashfs.org.uk>,
	Dan Carpenter <dan.carpenter@...cle.com>
Subject: RE: [PATCH 0/3] Update LZO compression

> From: Markus F.X.J. Oberhumer [mailto:markus@...rhumer.com]
> Subject: Re: [PATCH 0/3] Update LZO compression
> 
> Thanks Arnd,
> 
> On 2012-10-11 13:41, Arnd Bergmann wrote:
> > On Tuesday 09 October 2012, Markus F.X.J. Oberhumer wrote:
> >>>
> >>> : This commit updates the kernel LZO code to the current upsteam version
> >>> : which features a significant speed improvement - benchmarking the Calgary
> >>> : and Silesia test corpora typically shows a doubled performance in
> >>> : both compression and decompression on modern i386/x86_64/powerpc machines.
> >>>
> >>> There are significant clients of the LZO library - crypto, btrfs,
> >>> jffs2, ubifs, squashfs and zcache.  So let's give all those people a cc
> >>> and ask that they test the LZO changes once they land in linux-next.
> >>> For correctness and performance, please.
> >>
> >> The core compression and decompression code has been thoroughly tested, so I
> >> do not expect major problems.
> >>
> >> Good testing after the merge and feedback about build or performance issues
> >> (and improvements!) is highly appreciated.
> >
> > The addition of the lzo tree to linux-next caused this problem for ARM
> > imx_v6_v7_defconfig:
> >
> > In file included from /home/arnd/linux-arm/arch/arm/boot/compressed/decompress.c:40:0:
> > /home/arnd/linux-arm/arch/arm/boot/compressed/../../../../lib/decompress_unlzo.c:34:34: fatal error:
> lzo/lzo1x_decompress.c: No such file or directory
> >
> > Since the file was renamed, anything including it needs to be updated to the
> > new file name.
> 
> I will add that patch to my tree.
> 
> Cheers,
> Markus

Sorry if I missed it (bad connectivity this week), but is someone going
to send a pull request to get this LZO update from linux-next into
Linus's tree?  The window is closing soon isn't it?

Dan
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