From: Dave Jones <davej@codemonkey.org.uk>
To: "Toralf Förster" <toralf.foerster@gmx.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Why does "make oldconfig" always set CONFIG_SLUB_DEBUG=y ?
Date: Thu, 20 Mar 2008 16:19:35 -0400 [thread overview]
Message-ID: <20080320201935.GC1328@codemonkey.org.uk> (raw)
In-Reply-To: <200803202035.41465.toralf.foerster@gmx.de>
On Thu, Mar 20, 2008 at 08:35:41PM +0100, Toralf Förster wrote:
> I'm wondering why this option is always set after "make oldconfig" :
>
> tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG=y .config
> CONFIG_SLUB_DEBUG=y
> tfoerste@n22 ~/devel/linux-2.6 $ sed -i -e 's/_SLUB_DEBUG=y/_SLUB_DEBUG=n/' .config
> tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG= .config
> CONFIG_SLUB_DEBUG=n
> tfoerste@n22 ~/devel/linux-2.6 $ make oldconfig 1>/dev/null
> tfoerste@n22 ~/devel/linux-2.6 $ grep _SLUB_DEBUG= .config
> CONFIG_SLUB_DEBUG=y
CONFIG_SLUB_DEBUG is only optional if CONFIG_EMBEDDED is set.
There's little to no cost other than codesize to having it enabled.
Dave
--
http://www.codemonkey.org.uk
prev parent reply other threads:[~2008-03-20 20:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-20 19:35 Why does "make oldconfig" always set CONFIG_SLUB_DEBUG=y ? Toralf Förster
2008-03-20 20:16 ` Randy Dunlap
2008-03-20 20:19 ` Dave Jones [this message]
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