Data Structures

Now that we have considered the structural principles underlying the Ext2 filesystem, let's take a closer look at the data structures used to implement and store data on the hard disk. As noted above, the structures on the hard disk have counterparts in memory. These are used in addition to the virtual filesystem structures, first to support communication with the filesystem and to simplify the management of important data, and second to buffer metadata to speed up work with the filesystem.

Continue reading here: Superblock

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