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From: Daniel Stekloff <dsteklof@us.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>,
	Linux Kernel list <linux-kernel@vger.kernel.org>,
	Patrick Mochel <mochel@digitalimplant.org>,
	Jens Axboe <axboe@suse.de>
Subject: Re: /sys/block vs. /sys/class/block
Date: Tue, 21 Dec 2004 18:34:39 -0800	[thread overview]
Message-ID: <1103682804.3926.1.camel@localhost.localdomain> (raw)
In-Reply-To: <1103612870.21771.22.camel@gaston>

On Mon, 2004-12-20 at 23:07, Benjamin Herrenschmidt wrote:
> On Mon, 2004-12-20 at 14:49 -0800, Greg KH wrote:
> > On Mon, Dec 20, 2004 at 08:08:52AM +0100, Benjamin Herrenschmidt wrote:
> > > I'm trying to understand why we have /sys/block instead
> > > of /sys/class/block, and so far, I haven't found a single good argument
> > > justifying it... It just messes up the so far logical layout of sysfs
> > > for no apparent reason.
> > 
> > Because /sys/block happened before /sys/class did.  Al Viro converted
> > the block layer before I got the struct class stuff working properly
> > during 2.5.
> > 
> > And yes, I would like to convert the block layer to use the class stuff,
> > but for right now, I can't as class devices don't allow
> > sub-classes-devices, and getting to that work is _way_ down on my list
> > of things to do.
> 
> but can't we at least artificially move it down to /sys/class anyway for
> the sake of a sane userland API ?


Just as a note, libsysfs treats /sys/block as a class, as if under
/sys/class. We felt that's where it belonged and that's where it will
end up.... eventually.

Thanks,

Dan


  reply	other threads:[~2004-12-22  2:34 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-20  7:08 /sys/block vs. /sys/class/block Benjamin Herrenschmidt
2004-12-20  8:16 ` Nick Piggin
2004-12-20  9:29   ` Benjamin Herrenschmidt
2004-12-20  9:44     ` Nick Piggin
2004-12-20  9:45       ` Jens Axboe
2004-12-20 11:37         ` Jan Engelhardt
2004-12-20 14:08           ` Jens Axboe
2004-12-20 22:49 ` Greg KH
2004-12-21  7:07   ` Benjamin Herrenschmidt
2004-12-22  2:34     ` Daniel Stekloff [this message]
2004-12-22  4:34     ` Stephen Rothwell
2004-12-22  6:20       ` Greg KH
2004-12-23  6:39         ` David Weinehall
2004-12-23  6:55           ` Benjamin Herrenschmidt
2005-01-06 23:14             ` Greg KH

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