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[Xen-devel] [PATCH] PoD: Check refcount, not type count when reclaiming
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] PoD: Check refcount, not type count when reclaiming zero pages |
| From: | George Dunlap <George.Dunlap@xxxxxxxxxxxxx> |
| Date: | Thu, 29 Jan 2009 16:20:59 +0000 |
| Cc: | |
| Delivery-date: | Thu, 29 Jan 2009 08:21:32 -0800 |
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Check the page refcount rather than the type count when deciding if a page is still mapped. This catches pages which are mapped by qemu; it also removes the need for gnttab_is_granted(). Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
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