Re: [patch 4/5] mm + fs: provide refault distance to page cacheinstantiations

From: Peter Zijlstra
Date: Tue May 01 2012 - 05:59:10 EST


On Tue, 2012-05-01 at 11:55 +0200, Johannes Weiner wrote:
> On Tue, May 01, 2012 at 11:30:40AM +0200, Peter Zijlstra wrote:
> > On Tue, 2012-05-01 at 10:41 +0200, Johannes Weiner wrote:
> > > Every site that does a find_or_create()-style allocation is converted
> > > to pass this refault information to the page_cache_alloc() family of
> > > functions, which in turn passes it down to the page allocator via
> > > current->refault_distance.
> >
> > That is rather icky..
>
> Fair enough, I just went with the easier solution to get things off
> the ground instead of dealing with adding an extra parameter to layers
> of config-dependent gfp API. I'll revisit this for v2.

OK, thanks!
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