On Sat, Oct 27, 2007 at 03:18:08AM +0200, Peter Zijlstra wrote:
>
> On Fri, 2007-10-26 at 22:04 +0200, Peter Zijlstra wrote:
> > This crashes and burns on bootup, but I'm too tired to figure out what I
> > did wrong... will give it another try tomorrow..
>
> Ok, can't sleep.. took a look. I have several problems here.
>
> The thing that makes it go *boom* is the __ATTR_NULL. Removing that
> makes it boot. Albeit it then warns me of multiple duplicate sysfs
> objects, all named "bdi".
>
> For some obscure reason this device interface insists on using the
> bus_id as name (?!), and further reduces usability by limiting that to
> 20 odd characters.
>
> This makes it quite useless. I tried fudging around that limit by using
> device_rename and kobject_rename, but to no avail.
>
> Really, it should not be this hard to use, trying to expose a handfull
> of simple integers to userspace should not take 8h+ and still not work.
>
> Peter, who thinks sysfs is contorted mess beyond his skill. I'll stick
> to VM and scheduler code, that actually makes sense.
Heh, that's funny :)
I'll look at this and see what I can come up with. Would you just like
a whole new patch, or one against this one?
thanks,
greg k-h
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