28     let mut buf = [0u8; 128];  in remove_file_write()
32     let n = reader.len();  in remove_file_write()
35     let s = core::str::from_utf8(&buf[..n]).map_err(|_| EINVAL)?.trim();  in remove_file_write()
36     let nul_idx = s.len();  in remove_file_write()
38     let to_remove = CStr::from_bytes_with_nul(&buf[..nul_idx + 1]).map_err(|_| EINVAL)?;  in remove_file_write()
50     let mut buf = [0u8; 128];  in create_file_write()
54     let n = reader.len();  in create_file_write()
57     let mut nums = KVec::new();  in create_file_write()
59     let s = core::str::from_utf8(&buf[..n]).map_err(|_| EINVAL)?.trim();  in create_file_write()
60     let mut items = s.split_whitespace();  in create_file_write()
61     let name_str = items.next().ok_or(EINVAL)?;  in create_file_write()
62     let name = CString::try_from_fmt(fmt!("{name_str}"))?;  in create_file_write()
63     let file_name = CString::try_from_fmt(fmt!("{name_str}"))?;  in create_file_write()
70     let blob = KBox::pin_init(new_mutex!([0x42; SZ_4K]), GFP_KERNEL)?;  in create_file_write()
72     let scope = KBox::pin_init(  in create_file_write()
78                     let Ok(name) = CString::try_from_fmt(fmt!("{idx}")) else {  in create_file_write()
134         let base_dir = Dir::new(c_str!("rust_scoped_debugfs"));  in init()
135         let dyn_dirs = base_dir.subdir(c_str!("dynamic"));  in init()