Re: Pagecache: find_or_create_page does not call a proper pageallocator function

From: Christoph Lameter
Date: Tue Apr 24 2007 - 16:45:16 EST

On Tue, 24 Apr 2007, Andrew Morton wrote:

> > I would say that the filesystem is broke if it has such expectations
> > regardless of page migration.
> Others disagree ;)
> The filesystem has *told* the core kernel what its allocation constraints
> are by setting up mapping_gfp_mask(). If the core kernel stops honouring
> that request then it is core kernel which is broken.

Then I think we should disable page migration for allocations that do not
allow access to the policy zone. That would fix it.

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