[PATCH v1] mm/filemap: increase usage of folio_next_index() helper

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Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using
the existing helper folio_next_index() in filemap_map_pages().

Signed-off-by: Minjie Du <duminjie@xxxxxxxx>
---
 mm/filemap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index 4ea4387053e8..f8d0b97f9e94 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3591,7 +3591,7 @@ vm_fault_t filemap_map_pages(struct vm_fault *vmf,
 		addr += (xas.xa_index - last_pgoff) << PAGE_SHIFT;
 		vmf->pte += xas.xa_index - last_pgoff;
 		last_pgoff = xas.xa_index;
-		end = folio->index + folio_nr_pages(folio) - 1;
+		end = folio_next_index(folio) - 1;
 		nr_pages = min(end, end_pgoff) - xas.xa_index + 1;
 
 		if (!folio_test_large(folio))
-- 
2.39.0




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