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[Xen-devel] [PATCH Linux 2.6.31] Add hugepage support to the balloon dri
| To: | Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH Linux 2.6.31] Add hugepage support to the balloon driver |
| From: | Dave McCracken <dcm@xxxxxxxx> |
| Date: | Wed, 28 Oct 2009 10:44:14 -0500 |
| Cc: | Xen Developers List <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 28 Oct 2009 08:44:48 -0700 |
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This patch adds a boot command line switch "balloon_hugepages" that makes the balloon driver work entirely in hugepages. This version of the code checks to make sure each page is contiguous at the machine level. If it is not, it frees each page individually. When the huge page is reallocated it will be contiguous. Dave McCracken
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