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From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>, <mike.kravetz@oracle.com>,
	<songmuchun@bytedance.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	<linmiaohe@huawei.com>
Subject: [PATCH v2 5/5] hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()
Date: Tue, 26 Jul 2022 22:29:18 +0800	[thread overview]
Message-ID: <20220726142918.51693-6-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220726142918.51693-1-linmiaohe@huawei.com>

In some cases, e.g. when size option is not specified, f_blocks, f_bavail
and f_bfree will be set to -1 instead of 0. Likewise, when nr_inodes isn't
specified, f_files and f_ffree will be set to -1 too. Update the comment
to make this clear.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 fs/hugetlbfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 96c60aa3ab47..fe0e374b02a3 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -1079,7 +1079,7 @@ static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_bsize = huge_page_size(h);
 	if (sbinfo) {
 		spin_lock(&sbinfo->stat_lock);
-		/* If no limits set, just report 0 for max/free/used
+		/* If no limits set, just report 0 or -1 for max/free/used
 		 * blocks, like simple_statfs() */
 		if (sbinfo->spool) {
 			long free_pages;
-- 
2.23.0



  parent reply	other threads:[~2022-07-26 14:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-26 14:29 [PATCH v2 0/5] A few cleanup and fixup patches for hugetlbfs Miaohe Lin
2022-07-26 14:29 ` [PATCH v2 1/5] hugetlbfs: use helper macro SZ_1{K,M} Miaohe Lin
2022-07-27  6:43   ` Muchun Song
2022-07-26 14:29 ` [PATCH v2 2/5] hugetlbfs: remove unneeded hugetlbfs_ops forward declaration Miaohe Lin
2022-07-27  6:44   ` Muchun Song
2022-07-26 14:29 ` [PATCH v2 3/5] hugetlbfs: remove unneeded header file Miaohe Lin
2022-07-27  6:44   ` Muchun Song
2022-07-26 14:29 ` [PATCH v2 4/5] hugetlbfs: cleanup some comments in inode.c Miaohe Lin
2022-07-27  6:45   ` Muchun Song
2022-07-26 14:29 ` Miaohe Lin [this message]
2022-07-26 21:20   ` [PATCH v2 5/5] hugetlbfs: fix inaccurate comment in hugetlbfs_statfs() Mike Kravetz
2022-07-27  6:46   ` Muchun Song

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