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From: Christoph Lameter <cl@linux-foundation.org>
Subject: Re: [PATCH 00 of 30] Transparent Hugepage support #3
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To: Andrea Arcangeli <aarcange@redhat.com>
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Jus thinking about yesterdays fix to page migration:

This means that huge pages are unstable right? Kernel code cannot
establish a reference to a 2M/4M page and be sure that the page is not
broken up due to something in the VM that cannot handle huge pages?

We need special locking for this?

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