OPPO Kernel Craftsman
Oct 22, 2021 · Fundamentals
Understanding Linux Loop Device: Mechanism, Usage, and Implementation Details
The Linux loop device creates a virtual block device from a regular file, allowing the file’s filesystem to be mounted like a real disk; using losetup or ioctl you can attach, configure (including encryption or direct I/O), and the kernel forwards I/O through a concise, high‑performance stack ensuring compatibility and extensibility.
Block DeviceIO ForwardingKernel
0 likes · 7 min read