På to , 08/01/2004 klokka 12:47, skreiv Paul Smith:
> Do you know when those accounting errors were fixed?

In the official kernels? 2.4.22, I believe... However there are patches
going back to 2.4.19...

See http://www.fys.uio.no/~trondmy/src/Linux-2.4.x/2.4.19/

The main patch you want will be linux-2.4.19-14-call_start.dif

>
> ClearCase implements its own virtual filesystem type, and so is
> heavily tied to specific kernels (the kernel module is not open source
> of course :( ).  We basically can move to any kernel that has been
> released as part of an official Red Hat release (say, 2.4.20-8 from
> RH9 would work), but no other kernels can be used (the ClearCase
> kernel module has checks on the sizes of various kernel structures and
> won't load if they're not what it thinks they should be--and since
> it's a filesystem it cares deeply about structures that have tended to
> change a lot.  It won't even work with vanilla kernel.org kernels of
> the same version.)

Blech...

Note: if you want to try implementing a scheme like what you propose,
then the simplest way to do it, would be to add something like the
following patch. It disables nfs_strategy(), then causes
nfs_updatepage() to extend the request size if it sees that we're not
using byte-range locking, and the complete page is in cache.

Cheers,
  Trond