diff options
Diffstat (limited to 'arch/x86/vdso/vma.c')
| -rw-r--r-- | arch/x86/vdso/vma.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c index 8ad0081df7a8..e1513c47872a 100644 --- a/arch/x86/vdso/vma.c +++ b/arch/x86/vdso/vma.c @@ -30,7 +30,8 @@ void __init init_vdso_image(const struct vdso_image *image) BUG_ON(image->size % PAGE_SIZE != 0); for (i = 0; i < npages; i++) - image->pages[i] = virt_to_page(image->data + i*PAGE_SIZE); + image->text_mapping.pages[i] = + virt_to_page(image->data + i*PAGE_SIZE); apply_alternatives((struct alt_instr *)(image->data + image->alt), (struct alt_instr *)(image->data + image->alt + @@ -91,6 +92,10 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr) unsigned long addr; int ret = 0; static struct page *no_pages[] = {NULL}; + static struct vm_special_mapping vvar_mapping = { + .name = "[vvar]", + .pages = no_pages, + }; if (calculate_addr) { addr = vdso_addr(current->mm->start_stack, @@ -112,21 +117,23 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr) /* * MAYWRITE to allow gdb to COW and set breakpoints */ - ret = install_special_mapping(mm, - addr, - image->size, - VM_READ|VM_EXEC| - VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, - image->pages); + vma = _install_special_mapping(mm, + addr, + image->size, + VM_READ|VM_EXEC| + VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, + &image->text_mapping); - if (ret) + if (IS_ERR(vma)) { + ret = PTR_ERR(vma); goto up_fail; + } vma = _install_special_mapping(mm, addr + image->size, image->sym_end_mapping - image->size, VM_READ, - no_pages); + &vvar_mapping); if (IS_ERR(vma)) { ret = PTR_ERR(vma); |