Un-needed add-store operation wastes a few bytes.
8 bytes wasted with -O2, on a ppc.
Signed-off-by: nkalmala <[email protected]>
---
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b55bb35..bf2f6cf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -853,7 +853,7 @@ again:
pcp = &zone_pcp(zone, cpu)->pcp[cold];
local_irq_save(flags);
if (!pcp->count) {
- pcp->count += rmqueue_bulk(zone, 0,
+ pcp->count = rmqueue_bulk(zone, 0,
pcp->batch, &pcp->list);
if (unlikely(!pcp->count))
goto failed;
nkalmala wrote:
> Un-needed add-store operation wastes a few bytes.
> 8 bytes wasted with -O2, on a ppc.
>
> Signed-off-by: nkalmala <[email protected]>
Documentation/SubmittingPatches:
using your real name (sorry, no pseudonyms or anonymous contributions.)
Greetings,
Eike