linux-kernel - Re: [PATCH v3 -next 5/5] Kconfig: Make x86 and arm kernels default to the LZ4-compressed

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Message-Id: <20130305150845.0d19a2875d39dac5d03b4b62@linux-foundation.org>
Date:	Tue, 5 Mar 2013 15:08:45 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Florian Fainelli <florian@...nwrt.org>
Cc:	Kyungsik Lee <kyungsik.lee@....com>,
	Russell King <linux@....linux.org.uk>,
	"H. Peter Anvin" <hpa@...or.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org, x86@...nel.org,
	celinux-dev@...ts.celinuxforum.org,
	Nicolas Pitre <nico@...xnic.net>,
	David Sterba <dsterba@...e.cz>,
	Nitin Gupta <nitingupta910@...il.com>,
	Joe Millenbach <jmillenbach@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Michal Marek <mmarek@...e.cz>, hyojun.im@....com,
	chan.jeong@....com, raphael.andy.lee@...il.com
Subject: Re: [PATCH v3 -next 5/5] Kconfig: Make x86 and arm kernels default
 to the LZ4-compressed

On Tue, 05 Mar 2013 13:04:20 +0100 Florian Fainelli <florian@...nwrt.org> wrote:

> Hello,
> 
> On 03/05/2013 12:47 PM, Kyungsik Lee wrote:
> > This patch makes x86 and arm kernels default to the LZ4-compressed
> > to test new LZ4 code in the linux-next. This is requested by
> > Andrew Morton.
> 
> I do not think making this the default is good idea, because the lz4demo 
> utility that you need to actually compress the kernel (used in patch 2) 
> is not installed nor available by default on most systems, while gzip 
> is.

Yes, that's a showstopper even for linux-next.  What a shame.

It means this code will walk into mainline with practically zero
third-party testing.  Oh well, the risk is minor.  If it breaks, people
can switch back to gzip easily enough.


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