Re: Patch to reorder functions in the vmlinux to a defined order

[Arjan van de Ven <arjan@linux.intel.com>]

Andi Kleen wrote:
> On Thursday 23 February 2006 17:43, Arjan van de Ven wrote:
> > On Thu, 2006-02-23 at 17:00 +0100, Andi Kleen wrote:
> > > On Thursday 23 February 2006 16:09, Arjan van de Ven wrote:
> > >
> > > > This patch puts the infrastructure in place to allow for a reordering of
> > > > functions based inside the vmlinux. The general idea is that it is possible
> > > > to put all "common" functions into the first 2Mb of the code, so that they
> > > > are covered by one TLB entry. This as opposed to the current situation where
> > > > a typical vmlinux covers about 3.5Mb (on x86-64) and thus 2 TLB entries.
> > > > (This patch depends on the previous patch to pin head.S as first in the order)
> > > I think you would first need to move the code first for that. Currently it starts
> > > at 1MB, which means 1MB is already wasted of the aligned 2MB TLB entry.
> > >
> > > I wouldn't have a problem with moving the 64bit kernel to 2MB though.
> > that was easy since it's a Config entry already ;)
>
>
> I assume you boot tested it?

yes it booted on my testbox, and system.map showed the 2 instead of the 1
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