[XEN] Use correct xen_pfn_t type in implementation of XENMEM_exchange.

Avoids compile errors on ppc.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

diff --git a/xen/common/memory.c b/xen/common/memory.c
index 9b0c19ce03147b63bcdb3c41fddab9319bc2e14f..1fd8466a4d5f444010a3e7848b7a68b29b82fc0b 100644 (file)
--- a/xen/common/memory.c
+++ b/xen/common/memory.c
@@ -282,7 +282,7 @@ memory_exchange(XEN_GUEST_HANDLE(xen_memory_exchange_t) arg)
     LIST_HEAD(in_chunk_list);
     LIST_HEAD(out_chunk_list);
     unsigned long in_chunk_order, out_chunk_order;
-    unsigned long gpfn, gmfn, mfn;
+    xen_pfn_t     gpfn, gmfn, mfn;
     unsigned long i, j, k;
     unsigned int  memflags = 0;
     long          rc = 0;