Tag
block-mapping
- Nov 25, 2024 Extent Trees and the Replacement of Indirect Block Maps What an extent record actually encodes, why the inode-sized root makes small files free of external metadata, and how the tree splits when a file fragments. filesystems
- May 19, 2022 Sparse Files and the Gap Between Length and Allocation A file can report a length of terabytes while occupying a few blocks, and the interface keeps the two numbers separate; seeks into the gap, hole punching, and the copy that silently fills it. filesystems