Date: Wed, 14 Nov 2007 16:08:01 +0100
From: Andi Kleen <andi@firstfloor.org>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Andi Kleen <andi@firstfloor.org>, Greg KH <greg@kroah.com>,
       Alex Chiang <achiang@hp.com>, gregkh@suse.de,
       kristen.c.accardi@intel.com, lenb@kernel.org, richard.jones2@hp.com,
       linux-kernel@vger.kernel.org, linux-pci@atrey.karlin.mff.cuni.cz,
       pcihpd-discuss@lists.sourceforge.net, linux-acpi@vger.kernel.org
Subject: Re: [PATCH 0/5][RFC] Physical PCI slot objects
Message-ID: <20071114150801.GH17145@one.firstfloor.org>
References: <20071113000853.GA13341@ldl.fc.hp.com> <20071113170129.GA20185@kroah.com> <p73sl39y6qb.fsf@bingen.suse.de> <20071114141751.GS17785@parisc-linux.org> <20071114143533.GF17145@one.firstfloor.org> <20071114150025.GU17785@parisc-linux.org>
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On Wed, Nov 14, 2007 at 08:00:25AM -0700, Matthew Wilcox wrote:
> On Wed, Nov 14, 2007 at 03:35:33PM +0100, Andi Kleen wrote:
> > It becomes much more when someone does a find /sys. dentries are 
> > expensive. They eventually can get pruned again, but it's still
> > costly to do that.
> 
> Again, if this is a big concern for you, there are better places to look
> at for savings.

Whoever is proposing a feature has the burden to justify that
its usefulness is larger than the overhead/cost it adds.

Doesn't seem to be the case with this one so far.

And in general ignoring overhead in new features is a pretty sad
approach. Big bloat does come in small steps with each new feature.

-Andi
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