Method map_cluster_read

block/src/qcow/metadata.rs:510–520

Maps a single cluster region for a sequential read.

(
        &mut self,
        address: u64,
        count: usize,
        has_backing_file: bool,
    )

    /// Maps a single cluster region for a sequential read.
    pub(crate) fn map_cluster_read(
        &mut self,
        address: u64,
        count: usize,
        has_backing_file: bool,
    ) -> io::Result<ClusterReadMapping> {
        match self.try_map_read(address, count, has_backing_file)? {
            Some(mapping) => Ok(mapping),
            None => self.map_read_with_populate(address, count, has_backing_file),
        }
    }

    /// Write path mapping. Always called under write lock.
    fn map_write(