mm: add split_folio()

This wrapper removes a need to use split_huge_page(&folio->page).  Convert
two callers.

Link: https://lkml.kernel.org/r/20220902194653.1739778-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index 42e5888bf84d..674bde8b3085 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -629,7 +629,7 @@ next:
 			goto move_back;
 		}
 
-		ret = split_huge_page(&folio->page);
+		ret = split_folio(folio);
 		folio_unlock(folio);
 		folio_put(folio);