File Systems

  1. File System Architecture
    1. Layered Design
      1. Application and API Layer
        1. System Calls for File Operations
          1. User-Level Libraries
            1. Standard Library Functions
            2. Logical File System
              1. File Naming and Directory Management
                1. Security and Protection Mechanisms
                  1. Metadata Management
                  2. File Organization Module
                    1. File Allocation and Free Space Management
                      1. File Structure Handling
                        1. Block Allocation Strategies
                        2. Basic File System
                          1. Block Management
                            1. Buffering and Caching
                              1. I/O Scheduling
                              2. I/O Control Layer
                                1. Device Driver Interface
                                  1. Communication with Hardware
                                    1. Interrupt Handling
                                  2. Virtual File System (VFS)
                                    1. Purpose and Abstraction
                                      1. Uniform Interface for Multiple File Systems
                                        1. Support for Mounting Different File Systems
                                          1. File System Independence
                                          2. Benefits of a Common File Model
                                            1. Portability
                                              1. Extensibility
                                                1. Simplified Application Development
                                                2. Key VFS Interface Objects
                                                  1. Superblock Object
                                                    1. File System Metadata
                                                      1. Mount Information
                                                        1. File System Operations
                                                        2. Inode Object
                                                          1. File Metadata Storage
                                                            1. Inode Numbering
                                                              1. File Operations
                                                              2. Dentry Object
                                                                1. Directory Structure Representation
                                                                  1. Pathname Resolution
                                                                    1. Directory Cache
                                                                    2. File Object
                                                                      1. Open File State
                                                                        1. File Descriptor Management
                                                                          1. File Position Tracking

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                                                                    1. Introduction to File Systems

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                                                                    3. File Concepts