Method flush

block/src/qcow/metadata.rs:239–245

(&self)

    }

    pub fn flush(&self) -> io::Result<()> {
        let mut inner = self.inner.write().unwrap();
        inner.sync_caches()?;
        let mut unref = mem::take(&mut inner.unref_clusters);
        inner.avail_clusters.append(&mut unref);
        Ok(())
    }

    /// Flushes dirty metadata caches and clears the dirty bit for
    /// clean shutdown.