36     let mut buf = [0u8; 128];  in remove_file_write()
40     let n = reader.len();  in remove_file_write()
43     let s = core::str::from_utf8(&buf[..n]).map_err(|_| EINVAL)?.trim();  in remove_file_write()
44     let nul_idx = s.len();  in remove_file_write()
46     let to_remove = CStr::from_bytes_with_nul(&buf[..nul_idx + 1]).map_err(|_| EINVAL)?;  in remove_file_write()
58     let mut buf = [0u8; 128];  in create_file_write()
62     let n = reader.len();  in create_file_write()
65     let mut nums = KVec::new();  in create_file_write()
67     let s = core::str::from_utf8(&buf[..n]).map_err(|_| EINVAL)?.trim();  in create_file_write()
68     let mut items = s.split_whitespace();  in create_file_write()
69     let name_str = items.next().ok_or(EINVAL)?;  in create_file_write()
70     let name = CString::try_from_fmt(fmt!("{name_str}"))?;  in create_file_write()
71     let file_name = CString::try_from_fmt(fmt!("{name_str}"))?;  in create_file_write()
78     let blob = KBox::pin_init(new_mutex!([0x42; SZ_4K]), GFP_KERNEL)?;  in create_file_write()
80     let scope = KBox::pin_init(  in create_file_write()
86                     let Ok(name) = CString::try_from_fmt(fmt!("{idx}")) else {  in create_file_write()
138         let base_dir = Dir::new(c"rust_scoped_debugfs");  in init()
139         let dyn_dirs = base_dir.subdir(c"dynamic");  in init()