diff options
Diffstat (limited to 'arch/x86/entry/vdso/vma.c')
| -rw-r--r-- | arch/x86/entry/vdso/vma.c | 8 |
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 |