Reading from a File (continued)



(8) container_copy_out (handle, page cache, private) => version
Makes a private logical copy of the data
Saves in page cache
Detecting corruption
Server has new and old version ids
Compares to expected number of operations
If bad, the data is discarded and the operation fails
(9) Returns success to the client
(10) The client copies the data and deallocates the container


Writing to a file is quite similar.