Displaying 1 result from an estimated 1 matches for "page_pin".
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2008 May 31
1
[PATCH] xen: avoid hypercalls when updating unpinned pud/pmd
...ud = xen_set_pud_hyper,
.pte_clear = xen_pte_clear,
.pmd_clear = xen_pmd_clear,
===================================================================
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -236,7 +236,14 @@
*u = *update;
}
-void xen_set_pmd(pmd_t *ptr, pmd_t val)
+static bool page_pinned(void *ptr)
+{
+ struct page *page = virt_to_page(ptr);
+
+ return PagePinned(page);
+}
+
+void xen_set_pmd_hyper(pmd_t *ptr, pmd_t val)
{
struct mmu_update u;
@@ -251,6 +258,18 @@
xen_mc_issue(PARAVIRT_LAZY_MMU);
preempt_enable();
+}
+
+void xen_set_pmd(pmd_t *ptr, pmd_t val)
+{
+ /*...