* [PATCH-next] mm/mempolicy: use PAGE_ALIGN instead of open-coding it
@ 2022-09-13 1:55 Ze Zuo
2022-09-13 13:02 ` Muchun Song
0 siblings, 1 reply; 2+ messages in thread
From: Ze Zuo @ 2022-09-13 1:55 UTC (permalink / raw)
To: akpm; +Cc: linux-mm, linux-kernel, wangkefeng.wang, ze zuo
From: ze zuo <zuoze1@huawei.com>
Replace the simple calculation with PAGE_ALIGN.
Signed-off-by: ze zuo <zuoze1@huawei.com>
---
mm/mempolicy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 143e2eaaa6ec..a937eaec5b68 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1270,7 +1270,7 @@ static long do_mbind(unsigned long start, unsigned long len,
if (mode == MPOL_DEFAULT)
flags &= ~MPOL_MF_STRICT;
- len = (len + PAGE_SIZE - 1) & PAGE_MASK;
+ len = PAGE_ALIGN(len);
end = start + len;
if (end < start)
@@ -1507,7 +1507,7 @@ SYSCALL_DEFINE4(set_mempolicy_home_node, unsigned long, start, unsigned long, le
if (home_node >= MAX_NUMNODES || !node_online(home_node))
return -EINVAL;
- len = (len + PAGE_SIZE - 1) & PAGE_MASK;
+ len = PAGE_ALIGN(len);
end = start + len;
if (end < start)
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH-next] mm/mempolicy: use PAGE_ALIGN instead of open-coding it
2022-09-13 1:55 [PATCH-next] mm/mempolicy: use PAGE_ALIGN instead of open-coding it Ze Zuo
@ 2022-09-13 13:02 ` Muchun Song
0 siblings, 0 replies; 2+ messages in thread
From: Muchun Song @ 2022-09-13 13:02 UTC (permalink / raw)
To: Ze Zuo; +Cc: Andrew Morton, linux-mm, linux-kernel, wangkefeng.wang
> On Sep 13, 2022, at 09:55, Ze Zuo <zuoze1@huawei.com> wrote:
>
> From: ze zuo <zuoze1@huawei.com>
>
> Replace the simple calculation with PAGE_ALIGN.
>
> Signed-off-by: ze zuo <zuoze1@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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