The patch titled
Subject: mm/page-writeback.c: improve arithmetic divisions
has been removed from the -mm tree. Its filename was
mm-page-writebackc-improve-arithmetic-divisions.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Wen Yang <wenyang@xxxxxxxxxxxxxxxxx>
Subject: mm/page-writeback.c: improve arithmetic divisions
Use div64_ul() instead of do_div() if the divisor is unsigned long, to
avoid truncation to 32-bit on 64-bit platforms.
Link: http://lkml.kernel.org/r/20200102081442.8273-4-wenyang@xxxxxxxxxxxxxxxxx
Signed-off-by: Wen Yang <wenyang@xxxxxxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Qian Cai <cai@xxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page-writeback.c~mm-page-writebackc-improve-arithmetic-divisions
+++ a/mm/page-writeback.c
@@ -1102,7 +1102,7 @@ static void wb_update_write_bandwidth(st
bw = written - min(written, wb->written_stamp);
bw *= HZ;
if (unlikely(elapsed > period)) {
- do_div(bw, elapsed);
+ bw = div64_ul(bw, elapsed);
avg = bw;
goto out;
}
_
Patches currently in -mm which might be from wenyang@xxxxxxxxxxxxxxxxx are
