diff options
| -rw-r--r-- | arch/x86/entry/vdso/vdso-layout.lds.S | 2 | ||||
| -rw-r--r-- | arch/x86/entry/vdso/vma.c | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/vdso/vsyscall.h | 1 |
3 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S index 872947c1004c..918606ff92a9 100644 --- a/arch/x86/entry/vdso/vdso-layout.lds.S +++ b/arch/x86/entry/vdso/vdso-layout.lds.S @@ -24,7 +24,7 @@ SECTIONS timens_page = vvar_start + PAGE_SIZE; - vclock_pages = vvar_start + VDSO_NR_VCLOCK_PAGES * PAGE_SIZE; + vclock_pages = VDSO_VCLOCK_PAGES_START(vvar_start); pvclock_page = vclock_pages + VDSO_PAGE_PVCLOCK_OFFSET * PAGE_SIZE; hvclock_page = vclock_pages + VDSO_PAGE_HVCLOCK_OFFSET * PAGE_SIZE; diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index 39e6efc1a9ca..aa62949335ec 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -290,7 +290,7 @@ static int map_vdso(const struct vdso_image *image, unsigned long addr) } vma = _install_special_mapping(mm, - addr + (__VVAR_PAGES - VDSO_NR_VCLOCK_PAGES) * PAGE_SIZE, + VDSO_VCLOCK_PAGES_START(addr), VDSO_NR_VCLOCK_PAGES * PAGE_SIZE, VM_READ|VM_MAYREAD|VM_IO|VM_DONTDUMP| VM_PFNMAP, diff --git a/arch/x86/include/asm/vdso/vsyscall.h b/arch/x86/include/asm/vdso/vsyscall.h index 37b4a70559a8..88b31d4cdfaf 100644 --- a/arch/x86/include/asm/vdso/vsyscall.h +++ b/arch/x86/include/asm/vdso/vsyscall.h @@ -6,6 +6,7 @@ #define __VVAR_PAGES 4 #define VDSO_NR_VCLOCK_PAGES 2 +#define VDSO_VCLOCK_PAGES_START(_b) ((_b) + (__VVAR_PAGES - VDSO_NR_VCLOCK_PAGES) * PAGE_SIZE) #define VDSO_PAGE_PVCLOCK_OFFSET 0 #define VDSO_PAGE_HVCLOCK_OFFSET 1 |