One basic doubt regarding block layer & write system call. When a process writes to a file in blocking mode, when the 'write' system call returns,
A. will the process be returned only after actually writing the data on to the target block device? In this case we will get the benefit of elevator only if multiple processes are writing to the adjacent locations in the device. Is this true? OR B. will the process be returned after scheduling the writing (say after passing the data to the elevator)? If this case is true, how would the process ensure that the data has been actually written on to the block device? -- Thanks Sudheer -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
