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] hugetlbfs: make hugepage size conversion more readable
Date: Wed, 20 Jan 2021 04:23:48 -0500 [thread overview]
Message-ID: <20210120092348.13811-1-linmiaohe@huawei.com> (raw)
The calculation 1U << (h->order + PAGE_SHIFT - 10) is actually equal to
(PAGE_SHIFT << (h->order)) >> 10. So we can make it more readable by
replace it with huge_page_size(h) / SZ_1K.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
fs/hugetlbfs/inode.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 25c1857ff45d..f94b8f6553fa 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -1519,8 +1519,8 @@ static struct vfsmount *__init mount_one_hugetlbfs(struct hstate *h)
put_fs_context(fc);
}
if (IS_ERR(mnt))
- pr_err("Cannot mount internal hugetlbfs for page size %uK",
- 1U << (h->order + PAGE_SHIFT - 10));
+ pr_err("Cannot mount internal hugetlbfs for page size %luK",
+ huge_page_size(h) / SZ_1K);
return mnt;
}
--
2.19.1
next reply other threads:[~2021-01-20 10:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-20 9:23 Miaohe Lin [this message]
2021-01-21 19:00 ` Mike Kravetz
2021-01-22 1:42 ` Miaohe Lin
2021-01-22 5:02 ` Mike Kravetz
2021-01-22 6:12 ` Miaohe Lin
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