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Diffstat (limited to 'arch/x86/vdso/vma.c')
-rw-r--r--arch/x86/vdso/vma.c27
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 4b5d26f108bb..7abd2be0f9b9 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -15,9 +15,6 @@
#include <asm/proto.h>
#include <asm/vdso.h>
-#include "vextern.h" /* Just for VMAGIC. */
-#undef VEXTERN
-
unsigned int __read_mostly vdso_enabled = 1;
extern char vdso_start[], vdso_end[];
@@ -26,20 +23,10 @@ extern unsigned short vdso_sync_cpuid;
static struct page **vdso_pages;
static unsigned vdso_size;
-static inline void *var_ref(void *p, char *name)
-{
- if (*(void **)p != (void *)VMAGIC) {
- printk("VDSO: variable %s broken\n", name);
- vdso_enabled = 0;
- }
- return p;
-}
-
static int __init init_vdso_vars(void)
{
int npages = (vdso_end - vdso_start + PAGE_SIZE - 1) / PAGE_SIZE;
int i;
- char *vbase;
vdso_size = npages << PAGE_SHIFT;
vdso_pages = kmalloc(sizeof(struct page *) * npages, GFP_KERNEL);
@@ -54,20 +41,6 @@ static int __init init_vdso_vars(void)
copy_page(page_address(p), vdso_start + i*PAGE_SIZE);
}
- vbase = vmap(vdso_pages, npages, 0, PAGE_KERNEL);
- if (!vbase)
- goto oom;
-
- if (memcmp(vbase, "\177ELF", 4)) {
- printk("VDSO: I'm broken; not ELF\n");
- vdso_enabled = 0;
- }
-
-#define VEXTERN(x) \
- *(typeof(__ ## x) **) var_ref(VDSO64_SYMBOL(vbase, x), #x) = &__ ## x;
-#include "vextern.h"
-#undef VEXTERN
- vunmap(vbase);
return 0;
oom: