[v8,11/14] mm/gup: change index type to long as it counts pages

Commit Message

Pasha Tatashin Jan. 25, 2021, 7:47 p.m. UTC

In __get_user_pages_locked() i counts number of pages which should be
long, as long is used in all other places to contain number of pages, and
32-bit becomes increasingly small for handling page count proportional
values.

Signed-off-by: Pavel Tatashin <[e-mail]>
Acked-by: Michal Hocko <[e-mail]>
---
 mm/gup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/mm/gup.c b/mm/gup.c
index df29825305f8..f98af75dab0f 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1479,7 +1479,7 @@  static long __get_user_pages_locked(struct mm_struct *mm, unsigned long start,
 {
 	struct vm_area_struct *vma;
 	unsigned long vm_flags;
-	int i;
+	long i;
 
 	/* calculate required read or write permissions.
 	 * If FOLL_FORCE is set, we only require the "MAY" flags.