Re: [PATCH/RFC] s390: Hypervisor File System

[Arnd Bergmann <arnd@arndb.de>]

On Friday 21 April 2006 15:56, Michael Holzheu wrote:
> > This filesystem makes no sense for anything but s390 so please put it
> > under arch/s390/ (following the convention set by cell specific
> > spufs). Thanks.
> 
> Agreed! As long as the filesystem is s390 specifc, we probably should put
> it put it under arch/s390/hypfs. But in general one could imagine, that
> also other hypervisor platforms want to have such a filesystem in the
> future. In that case, we could make the filesystem more generic. E.g. we
> could split it into the filesystem part and an architecture specific
> backend which provides the hypervisor data. But you are right, until no
> other platform supports it, we should keep it simple, leave it s390
> specific and move it to arch/s390.
> 
There was some discussion about a sysfs hierarchy for hypervisor data
some time ago, see also http://lwn.net/Articles/176365/.
The idea was rather similar, just for other attributes. Maybe this
can be consolidated in some way.

Is there a strong reason why you made your own file system instead of
using subsystem_register to add /sys/hypervisor?

	Arnd <><