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Diffstat (limited to 'arch/x86/entry/vdso/vma.c')
-rw-r--r--arch/x86/entry/vdso/vma.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index c1b8496b5606..43428cc514c8 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -38,6 +38,8 @@ struct vdso_data *arch_get_vdso_data(void *vvar_page)
}
#undef EMIT_VVAR
+unsigned int vclocks_used __read_mostly;
+
#if defined(CONFIG_X86_64)
unsigned int __read_mostly vdso64_enabled = 1;
#endif
@@ -219,7 +221,7 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
} else if (sym_offset == image->sym_pvclock_page) {
struct pvclock_vsyscall_time_info *pvti =
pvclock_get_pvti_cpu0_va();
- if (pvti && vclock_was_used(VCLOCK_PVCLOCK)) {
+ if (pvti && vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)) {
return vmf_insert_pfn_prot(vma, vmf->address,
__pa(pvti) >> PAGE_SHIFT,
pgprot_decrypted(vma->vm_page_prot));
@@ -227,7 +229,7 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
} else if (sym_offset == image->sym_hvclock_page) {
struct ms_hyperv_tsc_page *tsc_pg = hv_get_tsc_page();
- if (tsc_pg && vclock_was_used(VCLOCK_HVCLOCK))
+ if (tsc_pg && vclock_was_used(VDSO_CLOCKMODE_HVCLOCK))
return vmf_insert_pfn(vma, vmf->address,
virt_to_phys(tsc_pg) >> PAGE_SHIFT);
} else if (sym_offset == image->sym_timens_page) {
@@ -445,6 +447,8 @@ __setup("vdso=", vdso_setup);
static int __init init_vdso(void)
{
+ BUILD_BUG_ON(VDSO_CLOCKMODE_MAX >= 32);
+
init_vdso_image(&vdso_image_64);
#ifdef CONFIG_X86_X32_ABI