diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/inode.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/inode.c b/fs/inode.c index f643be565df..04c785bb63c 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -665,12 +665,17 @@ void unlock_new_inode(struct inode *inode) if (inode->i_mode & S_IFDIR) { struct file_system_type *type = inode->i_sb->s_type; - /* - * ensure nobody is actually holding i_mutex - */ - mutex_destroy(&inode->i_mutex); - mutex_init(&inode->i_mutex); - lockdep_set_class(&inode->i_mutex, &type->i_mutex_dir_key); + /* Set new key only if filesystem hasn't already changed it */ + if (!lockdep_match_class(&inode->i_mutex, + &type->i_mutex_key)) { + /* + * ensure nobody is actually holding i_mutex + */ + mutex_destroy(&inode->i_mutex); + mutex_init(&inode->i_mutex); + lockdep_set_class(&inode->i_mutex, + &type->i_mutex_dir_key); + } } #endif /* |