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Lab 3 - IDA

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<strong>Lab</strong> 4: General Description<br />

• <strong>Lab</strong> 4: The File System<br />

– Lecture 9 (Monday)<br />

– Course book chapter 11.<br />

– Synchronization of read-write operations<br />

• One writer writes at a time<br />

• Many readers can read<br />

• See Readers-Writers Problem<br />

– Lecture 4.<br />

– Course book section 6.6.2<br />

– Additional system calls to work with files<br />

– Creating and removing files without destroying the<br />

file system<br />

Synchronize access to the directory and the free_map

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