Method round_down

block/src/qcow/raw_file.rs:74–77

(&self, offset: u64)

    }

    fn round_down(&self, offset: u64) -> u64 {
        let align: u64 = self.alignment.try_into().unwrap();
        (offset / align) * align
    }

    fn is_aligned(&self, buf: &[u8]) -> bool {
        if self.alignment == 0 {