[PATCH 16/24] xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree
From: Stefano Stabellini <hidden>
Date: 2012-07-26 15:56:57
Also in:
lkml, xen-devel
Subsystem:
arm port, the rest, xen hypervisor arm · Maintainers:
Russell King, Linus Torvalds, Stefano Stabellini
Only until we get the balloon driver to work. 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 60d6d36..1476b0b 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c@@ -121,6 +121,24 @@ int __init xen_guest_init(void) return 0; } EXPORT_SYMBOL_GPL(xen_guest_init); + +/* 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); core_initcall(xen_guest_init); static irqreturn_t xen_arm_callback(int irq, void *arg)
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1.7.2.5