Function flush

packages/computerd/src/fuse/driver.ts:731–737

(path, _fh, cb)

    },

    flush(path, _fh, cb) {
      // Linux close(2) drives this op once per close, before
      // release. Spilling here means a process that close()s
      // without unlink-ing sees its bytes through the VFS surface
      // immediately, without waiting for the kernel to call release.
      cb(flushEntry(path));
    },

    truncate(path, size, cb) {
      truncatePath(path, size, cb);