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Diffstat (limited to 'arch/csky/kernel/vdso.c')
-rw-r--r--arch/csky/kernel/vdso.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/arch/csky/kernel/vdso.c b/arch/csky/kernel/vdso.c
index 2ca886e4a458..5c9ef63c29f1 100644
--- a/arch/csky/kernel/vdso.c
+++ b/arch/csky/kernel/vdso.c
@@ -45,9 +45,16 @@ arch_initcall(vdso_init);
int arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp)
{
+ struct vm_area_struct *vma;
struct mm_struct *mm = current->mm;
unsigned long vdso_base, vdso_len;
int ret;
+ static struct vm_special_mapping vdso_mapping = {
+ .name = "[vdso]",
+ };
+ static struct vm_special_mapping vvar_mapping = {
+ .name = "[vvar]",
+ };
vdso_len = (vdso_pages + 1) << PAGE_SHIFT;
@@ -65,22 +72,29 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
*/
mm->context.vdso = (void *)vdso_base;
- ret =
- install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
+ vdso_mapping.pages = vdso_pagelist;
+ vma =
+ _install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
(VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC),
- vdso_pagelist);
+ &vdso_mapping);
- if (unlikely(ret)) {
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
mm->context.vdso = NULL;
goto end;
}
vdso_base += (vdso_pages << PAGE_SHIFT);
- ret = install_special_mapping(mm, vdso_base, PAGE_SIZE,
- (VM_READ | VM_MAYREAD), &vdso_pagelist[vdso_pages]);
+ vvar_mapping.pages = &vdso_pagelist[vdso_pages];
+ vma = _install_special_mapping(mm, vdso_base, PAGE_SIZE,
+ (VM_READ | VM_MAYREAD), &vvar_mapping);
- if (unlikely(ret))
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
mm->context.vdso = NULL;
+ goto end;
+ }
+ ret = 0;
end:
mmap_write_unlock(mm);
return ret;