Re: [PATCH] shrinker support for the mmu cache

[Marcelo Tosatti <marcelo@kvack.org>]

On Thu, Mar 13, 2008 at 01:23:23AM +0200, Izik Eidus wrote:
> Marcelo Tosatti wrote:
> >On Wed, Mar 12, 2008 at 08:13:41PM +0200, Izik Eidus wrote:
> >  
> >>this patch simply register the mmu cache with the shrinker.
> >>    
> >
> >Hi Izik,
> >  
> Hello Marcelo,
> 
> >Nice.
> >
> >I think you want some sort of aging mechanism here. 
> 
> well it is long time in the todo list to do some kind of lru for the 
> shadow mmu pages
> right now it "recycle" pages in a random way...
> 
> >Walk through all
> >translations of a shadow page clearing the referenced bit of all
> >mappings it holds (and moving pages with any accessed translation to the
> >head of the list).
> >  
> ok, i think i will just add a function named "sort_accessed_mmu_pages",
> that will just put to the top of the list the pages pointed by the ptes 
> that werent accessed
> and used it when i shrink, and when pages get recycled
> 
> this what you meant right?

By "top" I suppose you mean "end". So yes, right.

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