diff options
Diffstat (limited to 'arch/arm64/mm/copypage.c')
| -rw-r--r-- | arch/arm64/mm/copypage.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c index b5447e53cd73..24913271e898 100644 --- a/arch/arm64/mm/copypage.c +++ b/arch/arm64/mm/copypage.c @@ -16,22 +16,13 @@ void copy_highpage(struct page *to, struct page *from) { - struct page *kto = page_address(to); - struct page *kfrom = page_address(from); + void *kto = page_address(to); + void *kfrom = page_address(from); copy_page(kto, kfrom); if (system_supports_mte() && test_bit(PG_mte_tagged, &from->flags)) { set_bit(PG_mte_tagged, &to->flags); - page_kasan_tag_reset(to); - /* - * We need smp_wmb() in between setting the flags and clearing the - * tags because if another thread reads page->flags and builds a - * tagged address out of it, there is an actual dependency to the - * memory access, but on the current thread we do not guarantee that - * the new page->flags are visible before the tags were updated. - */ - smp_wmb(); mte_copy_page_tags(kto, kfrom); } } |