Deepin Linux
Apr 5, 2025 · Fundamentals
Understanding Linux Kernel Reverse Mapping (RMAP): Concepts, Data Structures, and Implementation
This article explains the Linux kernel reverse‑mapping (RMAP) mechanism, covering its historical background, core concepts, key data structures such as anon_vma and anon_vma_chain, and the detailed workflow for page creation, fork handling, and page reclaim or migration, with full code examples.
Anonymous PagesRMAPVirtual Memory
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