linux-kernel - [PATCH] hugetlbfs: rework calculation code of Hugepage size in hugetlbfs_show

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Date:   Mon, 1 Feb 2021 03:23:25 -0500
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <mike.kravetz@...cle.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH] hugetlbfs: rework calculation code of Hugepage size in hugetlbfs_show_options()

Rework calculation code of the Hugepage size to make it more readable and
straightforward.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 fs/hugetlbfs/inode.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 3a08fbae3b53..1be18de4b537 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -1014,11 +1014,12 @@ static int hugetlbfs_show_options(struct seq_file *m, struct dentry *root)
 	if (sbinfo->max_inodes != -1)
 		seq_printf(m, ",nr_inodes=%lu", sbinfo->max_inodes);
 
-	hpage_size /= 1024;
-	mod = 'K';
-	if (hpage_size >= 1024) {
-		hpage_size /= 1024;
+	if (hpage_size >= SZ_1M) {
+		hpage_size /= SZ_1M;
 		mod = 'M';
+	} else {
+		hpage_size /= SZ_1K;
+		mod = 'K';
 	}
 	seq_printf(m, ",pagesize=%lu%c", hpage_size, mod);
 	if (spool) {
-- 
2.19.1