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hugetlbfs: correct some obsolete comments about inode i_mutex 

Since commit 9902af79c0 ("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 <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2021-02-24 12:10:18 -08:00 committed by Linus Torvalds
parent a25fddced8
commit 398c0da736
1 changed files with 2 additions and 2 deletions
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4
fs/hugetlbfs/inode.c
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@ -604,7 +604,7 @@ static long hugetlbfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
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_namespace *mnt_userns,
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;