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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2012-08-08 17:20:58 +0000
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2012-08-08 17:20:58 +0000
commitea54209b16cbecad8928f6067af29069ac44e360 (patch)
tree8c0045d3beba26e27bb1002dac5a009b92c66429 /arch/arm/xen
parent0ec53ecf38bcbf95b4b057328a8fbba4d22ef28b (diff)
xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree
Only until we get the balloon driver to work. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/arm/xen')
-rw-r--r--arch/arm/xen/enlighten.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index bad67ad43c2d..59bcb96ac369 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -148,3 +148,21 @@ static int __init xen_init_events(void)
return 0;
}
postcore_initcall(xen_init_events);
+
+/* XXX: only until balloon is properly working */
+int alloc_xenballooned_pages(int nr_pages, struct page **pages, bool highmem)
+{
+ *pages = alloc_pages(highmem ? GFP_HIGHUSER : GFP_KERNEL,
+ get_order(nr_pages));
+ if (*pages == NULL)
+ return -ENOMEM;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(alloc_xenballooned_pages);
+
+void free_xenballooned_pages(int nr_pages, struct page **pages)
+{
+ kfree(*pages);
+ *pages = NULL;
+}
+EXPORT_SYMBOL_GPL(free_xenballooned_pages);