From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
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@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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;
_
