Hi,

Not sure if this should be fixed for 2.6.13. It can result in
pagecache corruption: so I guess that answers my own question.

This was tested by Robin and appears to solve the problem. Roland
had a quick look and thought the basic idea was sound. I'd like to
get a couple more acks before going forward, and in particular
Robin was contemplating possible efficiency improvements (although
efficiency can wait on correctness).

Feedback please, anyone.

Thanks,
Nick

-- 
SUSE Labs, Novell Inc.