Re: [v3 PATCH 2/5] mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

From: Kirill A. Shutemov
Date: Mon Oct 04 2021 - 10:07:00 EST


On Thu, Sep 30, 2021 at 02:53:08PM -0700, Yang Shi wrote:
> diff --git a/mm/filemap.c b/mm/filemap.c
> index dae481293b5d..2acc2b977f66 100644
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -3195,12 +3195,12 @@ static bool filemap_map_pmd(struct vm_fault *vmf, struct page *page)
> }
>
> if (pmd_none(*vmf->pmd) && PageTransHuge(page)) {
> - vm_fault_t ret = do_set_pmd(vmf, page);
> - if (!ret) {
> - /* The page is mapped successfully, reference consumed. */
> - unlock_page(page);
> - return true;
> - }
> + vm_fault_t ret = do_set_pmd(vmf, page);
> + if (!ret) {
> + /* The page is mapped successfully, reference consumed. */
> + unlock_page(page);
> + return true;
> + }
> }
>
> if (pmd_none(*vmf->pmd)) {

Hm. Is it unrelated whitespace fix?

--
Kirill A. Shutemov