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-rw-r--r--mm/gup.c15
1 files changed, 1 insertions, 14 deletions
diff --git a/mm/gup.c b/mm/gup.c
index 91bbf57579f0..e6e2a9386850 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -3590,7 +3590,7 @@ long memfd_pin_folios(struct file *memfd, loff_t start, loff_t end,
{
unsigned int flags, nr_folios, nr_found;
unsigned int i, pgshift = PAGE_SHIFT;
- pgoff_t start_idx, end_idx, next_idx;
+ pgoff_t start_idx, end_idx;
struct folio *folio = NULL;
struct folio_batch fbatch;
struct hstate *h;
@@ -3640,19 +3640,7 @@ long memfd_pin_folios(struct file *memfd, loff_t start, loff_t end,
folio = NULL;
}
- next_idx = 0;
for (i = 0; i < nr_found; i++) {
- /*
- * As there can be multiple entries for a
- * given folio in the batch returned by
- * filemap_get_folios_contig(), the below
- * check is to ensure that we pin and return a
- * unique set of folios between start and end.
- */
- if (next_idx &&
- next_idx != folio_index(fbatch.folios[i]))
- continue;
-
folio = page_folio(&fbatch.folios[i]->page);
if (try_grab_folio(folio, 1, FOLL_PIN)) {
@@ -3665,7 +3653,6 @@ long memfd_pin_folios(struct file *memfd, loff_t start, loff_t end,
*offset = offset_in_folio(folio, start);
folios[nr_folios] = folio;
- next_idx = folio_next_index(folio);
if (++nr_folios == max_folios)
break;
}