Re: [PATCH 1/5] freepgt: free_pgtables use vma list
From: Nick Piggin
Date: Tue Mar 22 2005 - 00:15:59 EST
On Mon, 2005-03-21 at 15:02 -0800, David S. Miller wrote:
> Anyways, there's the full analysis, what do you make
> of this Hugh? :-)
Impressive, and my name isn't even Hugh.
Question, Dave: flush_tlb_pgtables after Hugh's patch is also
possibly not being called with enough range to cover all page
tables that have been freed.
For example, you may have a single page (start,end) address range
to free, but if this is enclosed by a large enough (floor,ceiling)
then it may free an entire pgd entry.
I assume the intention of the API would be to provide the full
pgd width in that case?
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