diff options
| -rw-r--r-- | arch/arm64/kernel/vdso.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c index 421411981dc3..16bf0b46fb70 100644 --- a/arch/arm64/kernel/vdso.c +++ b/arch/arm64/kernel/vdso.c @@ -271,6 +271,14 @@ enum aarch32_map { static struct page *aarch32_vectors_page __ro_after_init; static struct page *aarch32_sig_page __ro_after_init; +static int aarch32_sigpage_mremap(const struct vm_special_mapping *sm, + struct vm_area_struct *new_vma) +{ + current->mm->context.sigpage = (void *)new_vma->vm_start; + + return 0; +} + static struct vm_special_mapping aarch32_vdso_maps[] = { [AA32_MAP_VECTORS] = { .name = "[vectors]", /* ABI */ @@ -279,6 +287,7 @@ static struct vm_special_mapping aarch32_vdso_maps[] = { [AA32_MAP_SIGPAGE] = { .name = "[sigpage]", /* ABI */ .pages = &aarch32_sig_page, + .mremap = aarch32_sigpage_mremap, }, [AA32_MAP_VVAR] = { .name = "[vvar]", |