Re: [PATCH 1 of 13] Add apply_to_page_range() which applies a function to a pte range

From: Chris Wright
Date: Tue Aug 01 2006 - 17:11:29 EST

* Eric W. Biederman (ebiederm@xxxxxxxxxxxx) wrote:
> - You don't handle huge pages. For a generic function
> that sounds like a problem.
> - I believe there is a reason the kernel doesn't already have
> a function like this. I seem to recall there being efficiency
> and fast path arguments.
> - Placing this code in mm/memory.c without a common consumer is
> pure kernel bloat for everyone who doesn't use this function,
> which is just about everyone.

We got the opposite feedback the first time we posted this function.
Xen has some users, and I believe there's a couple in-tree functions we could
convert easily w/out overhead issues. It's generic and this is just the
infrastructure, I think we should leave it.

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