From: Jeff Dike <jdike@ka...> - 2002-10-24 02:03:34
> Really? I'd think a cache should be invalidated when whatever is
> behind that cache has changed.
No, there are caches all over the place which are out of date wrt whatever
Any remote filesystem can give you old data.
stdio will buffer data and happily give you old data from the buffer without
checking whether it's still good.
However, since you got me thinking about it, I think I can use dnotify to
tell when a file on the host has changed and that the UML cache should be