From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>, <mike.kravetz@oracle.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linmiaohe@huawei.com>
Subject: [PATCH] mm/hugetlb: use helper function range_in_vma() in page_table_shareable()
Date: Thu, 4 Feb 2021 06:29:49 -0500 [thread overview]
Message-ID: <20210204112949.43051-1-linmiaohe@huawei.com> (raw)
We could use helper function range_in_vma() to check whether the vma is in
the desired range to simplify the code.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cf82629319ed..442705be052a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5237,7 +5237,7 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma,
*/
if (pmd_index(addr) != pmd_index(saddr) ||
vm_flags != svm_flags ||
- sbase < svma->vm_start || svma->vm_end < s_end)
+ !range_in_vma(svma, sbase, s_end))
return 0;
return saddr;
--
2.19.1
next reply other threads:[~2021-02-04 11:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 11:29 Miaohe Lin [this message]
2021-02-04 21:37 ` Mike Kravetz
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