On Wed, 2006-10-11 at 15:39 -0700, Greg KH wrote:
> On Tue, Oct 10, 2006 at 06:28:51PM -0700, Joel Becker wrote:
> > On Tue, Oct 10, 2006 at 05:49:59PM -0700, Matt Helsley wrote:
> > > We want to be able to export a sequence of small (<< 1 page),
> > > homogenous, unstructured (scalar), attributes through configfs using the
> > > same file. While this is rather specific, I'd guess it would be a common
> > > occurrence.
> >
> > Pray tell, why? "One attribute per file" is the mantra here.
> > You really should think hard before you break it. Simple heuristic:
> > would you have to parse the buffer? Then it's wrong.
>
> I agree. You are trying to use configfs for something that it is not
> entended to be used for. If you want to write/read large numbers of
> attrbutes like this, use your own filesystem.
I would say it is a "large attribute" not "large numbers of attributes".
>
> configfs has the same "one value per file" rule that sysfs has. And
> because your userspace model doesn't fit that, don't try to change
> configfs here.
>
> What happened to your old ckrmfs? I thought you were handling all of
> this in that.
We decided to use an existing infrastructure instead of having our own
file system.
configfs is a perfect fit for us, except the size limitation.
BTW, it it not just CKRM/RG, Paul Menage as recently extracted the
processes aggregation from cpuset to have an independent infrastructure
(http://marc.theaimsgroup.com/?l=ckrm-tech&m=116006307018720&w=2), which
has its own file system. I was advocating him to use configfs. But, he
also has this issue/limitation.
>
> thanks,
>
> greg k-h
--
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Chandra Seetharaman | Be careful what you choose....
- [email protected] | .......you may get it.
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