From: Andrew Morton <akpm@linux-foundation.org>

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page-writeback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN mm/page-writeback.c~mm-dirty-balancing-for-tasks-warning-fix mm/page-writeback.c
--- a/mm/page-writeback.c~mm-dirty-balancing-for-tasks-warning-fix
+++ a/mm/page-writeback.c
@@ -223,7 +223,7 @@ void task_dirty_limit(struct task_struct
 {
 	long numerator, denominator;
 	long dirty = *pdirty;
-	long long inv = dirty >> 3;
+	u64 inv = dirty >> 3;
 
 	task_dirties_fraction(tsk, &numerator, &denominator);
 	inv *= numerator;
_