From aaa31e058dd82453c89302c9331945894ff555a6 Mon Sep 17 00:00:00 2001 From: ze zuo Date: Tue, 13 Sep 2022 01:55:05 +0000 Subject: [PATCH] mm/mempolicy: use PAGE_ALIGN instead of open-coding it Replace the simple calculation with PAGE_ALIGN. Link: https://lkml.kernel.org/r/20220913015505.1998958-1-zuoze1@huawei.com Signed-off-by: ze zuo Reviewed-by: Muchun Song Signed-off-by: Andrew Morton --- 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)