301     spin_lock(&parent_dir->lockref.lock);  in vfs_mkdir()
315     spin_lock(&parent_dir->dir_inode->lockref.lock);  in vfs_mkdir()
317     spin_unlock(&parent_dir->dir_inode->lockref.lock);  in vfs_mkdir()
322             spin_unlock(&parent_dir->lockref.lock);  in vfs_mkdir()
333         spin_lock(&prev_dentry->lockref.lock);  in vfs_mkdir()
336         spin_unlock(&prev_dentry->lockref.lock);  in vfs_mkdir()
345     spin_unlock(&parent_dir->lockref.lock);  in vfs_mkdir()
448         spin_lock(&parent_dentry->lockref.lock);  in do_open()
449         spin_lock(&parent_dentry->dir_inode->lockref.lock);  in do_open()
452         spin_unlock(&parent_dentry->dir_inode->lockref.lock); // 解锁inode  in do_open()
460             spin_unlock(&parent_dentry->lockref.lock);  in do_open()
470             spin_lock(&next_dentry->lockref.lock);  in do_open()
474             spin_unlock(&next_dentry->lockref.lock);  in do_open()
477         spin_unlock(&parent_dentry->lockref.lock);  in do_open()
486     spin_lock(&dentry->lockref.lock);  in do_open()
490         spin_unlock(&dentry->lockref.lock);  in do_open()
510         spin_unlock(&dentry->lockref.lock);  in do_open()
528         spin_unlock(&dentry->lockref.lock);  in do_open()
531     spin_unlock(&dentry->lockref.lock);  in do_open()
583     spin_init(&dentry->lockref.lock);  in vfs_alloc_dentry()
680     spin_lock(&dentry->lockref.lock);  in vfs_rmdir()
707     spin_unlock(&dentry->dir_inode->lockref.lock);  in vfs_rmdir()
709     spin_unlock(&dentry->lockref.lock);  in vfs_rmdir()
747     spin_lock(&target->lockref.lock);  in vfs_unlink()
761     spin_unlock(&target->lockref.lock);  in vfs_unlink()
831     spin_lock(&p_inode->lockref.lock);  in do_unlink_at()
832     spin_lock(&dentry->lockref.lock);  in do_unlink_at()
837         spin_unlock(&dentry->lockref.lock);  in do_unlink_at()
838         spin_unlock(&p_inode->lockref.lock);  in do_unlink_at()
842     spin_unlock(&dentry->lockref.lock);  in do_unlink_at()
843     spin_unlock(&p_inode->lockref.lock);  in do_unlink_at()
883     spin_init(&inode->lockref.lock);  in vfs_alloc_inode()