We can get the folio directly from the folio batch, so remove the
unnecessary page_folio() call.
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
---
mm/gup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/gup.c b/mm/gup.c
index 1fb8f3b9a493..795fd94f379d 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -3640,7 +3640,7 @@ long memfd_pin_folios(struct file *memfd, loff_t start, loff_t end,
}
for (i = 0; i < nr_found; i++) {
- folio = page_folio(&fbatch.folios[i]->page);
+ folio = fbatch.folios[i];
if (try_grab_folio(folio, 1, FOLL_PIN)) {
folio_batch_release(&fbatch);
--
2.49.0
Hi Vishal,
> Subject: [PATCH 2/2] mm/gup: Remove page_folio() in memfd_pin_folios()
>
> We can get the folio directly from the folio batch, so remove the
> unnecessary page_folio() call.
>
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
> ---
> mm/gup.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/gup.c b/mm/gup.c
> index 1fb8f3b9a493..795fd94f379d 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -3640,7 +3640,7 @@ long memfd_pin_folios(struct file *memfd, loff_t
> start, loff_t end,
> }
>
> for (i = 0; i < nr_found; i++) {
> - folio = page_folio(&fbatch.folios[i]->page);
> + folio = fbatch.folios[i];
I don't recall why I chose to extract the folio in a roundabout way. LGTM.
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Thanks,
Vivek
>
> if (try_grab_folio(folio, 1, FOLL_PIN)) {
> folio_batch_release(&fbatch);
> --
> 2.49.0
On 30.04.25 03:00, Vishal Moola (Oracle) wrote:
> We can get the folio directly from the folio batch, so remove the
> unnecessary page_folio() call.
>
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
> ---
> mm/gup.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/gup.c b/mm/gup.c
> index 1fb8f3b9a493..795fd94f379d 100644
> --- a/mm/gup.c
> +++ b/mm/gup.c
> @@ -3640,7 +3640,7 @@ long memfd_pin_folios(struct file *memfd, loff_t start, loff_t end,
> }
>
> for (i = 0; i < nr_found; i++) {
> - folio = page_folio(&fbatch.folios[i]->page);
> + folio = fbatch.folios[i];
>
> if (try_grab_folio(folio, 1, FOLL_PIN)) {
> folio_batch_release(&fbatch);
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
© 2016 - 2026 Red Hat, Inc.