Chapter 17 : Data Synchronization¶

17.1 Overview¶

17.2 The pdflush Mechanism¶

17.3 Starting a New Thread¶

17.4 Thread Initialization¶

17.5 Performing Actual Work¶

17.6 Periodic Flushing¶

17.7 Associated Data Structures¶

Page Status¶

Writeback Control¶

Adjustable Parameters¶

17.8 Central Control¶

17.9 Superblock Synchronization¶

17.10 Inode Synchronization¶

Walking the Superblocks¶

Examining Superblock Inodes¶

Writing Back Single Inodes¶

17.11 Congestion¶

Data Structures¶

Thresholds¶

Setting and Clearing the Congested State¶

Waiting on Congested Queues¶

17.12 Forced Writeback¶

17.13 Laptop Mode¶

17.14 System Calls for Synchronization Control¶

17.15 Full Synchronization¶

Synchronization of Inodes¶

Synchronization of Individual Files¶

Synchronization of Memory Mappings¶

Summary¶

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