Deepin Linux

Nov 27, 2023 · Fundamentals

Understanding Linux Memory Mapping (mmap): Concepts, APIs, and Source‑Code Analysis

This article explains the fundamentals of memory‑mapped files in Linux, covering the mmap/munmap interfaces, mapping types, protection flags, error handling, virtual‑memory structures, kernel implementation details, driver examples, and practical use‑cases such as shared memory and high‑performance I/O.