linux-kernel - Re: [PATCH] driver core: remove CONFIG_SYSFS

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Date:	Thu, 15 Jul 2010 07:27:40 -0700
From:	Greg KH <greg@...ah.com>
To:	Konrad Rzeszutek Wilk <konrad@...nel.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	alsa-devel@...a-project.org, Jens Axboe <axboe@...nel.dk>,
	Stephen Hemminger <shemminger@...tta.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Alan Stern <stern@...land.harvard.edu>,
	"James E.J. Bottomley" <James.Bottomley@...e.de>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Tejun Heo <tj@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	David Howells <dhowells@...hat.com>,
	Dave Airlie <airlied@...il.com>
Subject: Re: [PATCH] driver core: remove CONFIG_SYSFS_DEPRECATED

On Thu, Jul 15, 2010 at 09:29:01AM -0400, Konrad Rzeszutek Wilk wrote:
> 
> > > and the box still won't boot.
> >
> > The reason FC6 doesn't boot is there is a userspace tool
> > I believe in the initrd that cares about symlinks when it should
> > not.
> 
> It is not just nash. Also multipathd would fail (as it expects 
> the /sys/scsi_host/..<something> in certain directories), and 'lsscsi'. There 
> might be other tools that depend on libsysfs to be affected by this as well.

No tool should use libsysfs, that code broke a _long_ time ago.  Do you
know of anything using it?

> Oh, and I think 'udev' might have some trouble too - but not 100% certain 
> about that.

Heh, no udev works just fine :)

So basically, it's just the block links that are being affected, so that
might let me narrow down the code covered by the depreciated option.

thanks,

greg k-h
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