Re: What to expect with the 2.6 VM

From: Rik van Riel (
Date: Wed Jul 02 2003 - 13:07:03 EST

On Wed, 2 Jul 2003, Martin J. Bligh wrote:

> Maybe I'm just taking this out of context, and it's twisting my brain,
> but as far as I know, the nonlinear vma's *are* backed by pte_chains.

They are, but IMHO they shouldn't be. The nonlinear vmas are used
only for database shared memory segments and other "bypass the VM"
applications, so I don't see any reason why we need to complicate
things hopelessly in order to deal with corner cases like truncate.

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