# HG changeset patch
# User Ian Campbell <ian.campbell@xensource.com>
# Date Wed Oct 25 13:58:30 2006 +0100
# Node ID ac6e4405ab6c363eae43fd7384b7dca975e9e28e
# parent: 4dcf172e699e094bc772baa66b9dc93083332941
PV-on-HVM: Include compatability vmalloc_to_pfn for kernels before 2.6.10

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>
Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>

--- a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h	Wed Oct 25 13:58:30 2006 +0100
+++ b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h	Wed Oct 25 13:58:30 2006 +0100
@@ -29,4 +29,8 @@
 #define nonseekable_open(inode, filp) /* Nothing to do */
 #endif
 
+#if defined(_LINUX_MM_H) && LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+unsigned long vmalloc_to_pfn(void *addr);
 #endif
+
+#endif
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c	Wed Oct 25 13:58:30 2006 +0100
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c	Wed Oct 25 13:58:30 2006 +0100
@@ -1,6 +1,7 @@
 #include <linux/config.h>
 #include <linux/version.h>
 
+#include <linux/mm.h>
 #include <linux/module.h>
 
 #include <xen/platform-compat.h>
@@ -29,3 +30,14 @@ size_t strcspn(const char *s, const char
 }
 EXPORT_SYMBOL(strcspn);
 #endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+/*
+ * Map a vmalloc()-space virtual address to the physical page frame number.
+ */
+unsigned long vmalloc_to_pfn(void * vmalloc_addr)
+{
+        return page_to_pfn(vmalloc_to_page(vmalloc_addr));
+}
+EXPORT_SYMBOL(vmalloc_to_pfn);
+#endif