xen: Do not pin/unpin PMD pages

[linux-block.git] / arch / x86 / xen / enlighten.c

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 16e2f8096a1ac68332d479ea25158cfe4def0e4c..f16b056e5c567ca6e33be9f76155bef54910176b 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -689,8 +689,6 @@ static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level)
                        make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
                        if (level == PT_PTE)
                                pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
-                       else if (level == PT_PMD)
-                               pin_pagetable_pfn(MMUEXT_PIN_L2_TABLE, pfn);
                } else
                        /* make sure there are no stray mappings of
                           this page */
@@ -715,7 +713,8 @@ static void xen_release_ptpage(u32 pfn, unsigned level)
 
        if (PagePinned(page)) {
                if (!PageHighMem(page)) {
-                       pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
+                       if (level == PT_PTE)
+                               pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
                        make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
                }
        }