[PATCH v2 17/23] xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree
From: Konrad Rzeszutek Wilk <hidden>
Date: 2012-08-07 18:41:17
Also in:
lkml, xen-devel
On Mon, Aug 06, 2012 at 03:27:20PM +0100, Stefano Stabellini wrote:
Only until we get the balloon driver to work.
OK. Acked-by be.
quoted hunk ↗ jump to hunk
Signed-off-by: Stefano Stabellini <redacted> --- arch/arm/xen/enlighten.c | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-)diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 87b17f0..c244583 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c@@ -140,3 +140,21 @@ 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);-- 1.7.2.5