Date: Wed, 7 Jan 2004 16:41:24 -0800
From: Greg KH <greg@kroah.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Linus Torvalds <torvalds@osdl.org>, Andrey Borzenkov <arvidjaar@mail.ru>,
       linux-hotplug-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: removable media revalidation - udev vs. devfs or static /dev
Message-ID: <20040108004124.GA3388@kroah.com>
References: <200401012333.04930.arvidjaar@mail.ru> <20040103055847.GC5306@kroah.com> <Pine.LNX.4.58.0401071036560.12602@home.osdl.org> <20040107185656.GB31827@kroah.com> <Pine.LNX.4.58.0401071123490.12602@home.osdl.org> <20040107195032.GB823@kroah.com> <14870000.1073521945@[10.10.2.4]>
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On Wed, Jan 07, 2004 at 04:32:26PM -0800, Martin J. Bligh wrote:
> >> NOTE! We do have an alternative: if we were to just make block device 
> >> nodes support "readdir" and "lookup", you could just do
> >> 
> >> 	open("/dev/sda/1" ...)
> >> 
> >> and it magically works right. I've wanted to do this for a long time, but 
> >> every time I suggest allowing it, people scream.
> > 
> > Hm, that would be nice.  I don't remember seeing it being proposed
> > before, what are the main complaints people have with this?
> 
> Couldn't the partitions go under "/dev/sdaX/{1,2,3}" and solve the same
> problem without doing magic on the devices?

No, that's not the point.  As discussed on irc, I think you now
understand the issue (partitions not being present, media changed
without kernel knowing about it, etc.)

thanks,

greg k-h
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