Re: sysfs regressions (was: 2.6.16-rc4: known regressions)

[Greg KH <gregkh@suse.de>]

On Wed, Feb 22, 2006 at 06:17:14PM +0100, Matthias Andree wrote:
> Christoph Hellwig schrieb am 2006-02-22:
> 
> > And to continue the rant: the broken mount uevent feature (which
> > can't work right) got in without any serious review through the
> > driver model tree.  just as all those break udev/etc patches that
> > cause all these userland breakages for those people brave enough
> > to use udev and surrounding bits.
> > 
> > Folks, we need to stop breaking sysfs interface all the time.  Having
> > attributes on objects is real nice from many perspectives, but it's
> > also a burden because the internal object model is now seen by the
> > outside world.  That means anything involving sysfs needs a careful
> > design not random patching as the driver model core people appear to
> > do.
> 
> Oh, and while we're at it: perhaps someone should revert the patch that
> caused Douglas Gilbert to chase incompatible sysfs changes in his
> user-space applications. It's pretty sad to see random breakage,
> apparently by randomly changing / to : in paths from what I discern from
> Doug's Changelog. (No, I don't have the background handy, neither would
> I care; I just see the application chasing sysfs changes, and that's
> enough to complain.)

No, that fixed a real bug where sysfs would create multiple symlinks
with the same name in the same directory.  That _had_ to be fixed, as
even Douglas's old tools couldn't handle that properly :)

thanks,

greg k-h