[patch 170/173] hugetlbfs: correct some obsolete comments about inode i_mutex
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From: Andrew Morton <akpm@linux-foundation.org>
Date: 2021-02-24 20:10:21
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mm-commits
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: hugetlbfs: correct some obsolete comments about inode i_mutex
Since commit 9902af79c01a ("parallel lookups: actual switch to rwsem"),
i_mutex of inode is converted to i_rwsem. So replace i_mutex with i_rwsem
to make comments up to date.
Link: https://lkml.kernel.org/r/20210127093111.36672-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mike Kravetz <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/hugetlbfs/inode.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/hugetlbfs/inode.c~hugetlbfs-correct-some-obsolete-comments-about-inode-i_mutex
+++ a/fs/hugetlbfs/inode.c@@ -604,7 +604,7 @@ static long hugetlbfs_punch_hole(struct inode_lock(inode); - /* protected by i_mutex */ + /* protected by i_rwsem */ if (info->seals & (F_SEAL_WRITE | F_SEAL_FUTURE_WRITE)) { inode_unlock(inode); return -EPERM;
@@ -777,7 +777,7 @@ static int hugetlbfs_setattr(struct user if (newsize & ~huge_page_mask(h)) return -EINVAL; - /* protected by i_mutex */ + /* protected by i_rwsem */ if ((newsize < oldsize && (info->seals & F_SEAL_SHRINK)) || (newsize > oldsize && (info->seals & F_SEAL_GROW))) return -EPERM;
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