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hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()

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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.

Link: https://lkml.kernel.org/r/20220726142918.51693-6-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2022-07-26 22:29:18 +08:00 committed by akpm
parent 445c809829
commit 1168076345
1 changed files with 1 additions and 1 deletions
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2
fs/hugetlbfs/inode.c
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@ -1090,7 +1090,7 @@ 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;