ast added a comment. > The address spaces envisioned by the Linux kernel appear to be more > informational and not descriptive of hardware characteristics.
From the kernel pov the `__user` and normal are two different address spaces that must be accessed via different kernel primitives. User access needs stac/clac on x86 and other precautions. iirc other architectures have co-processor address space that needs its own load/store equivalents. `__percpu` is also different address space. It's roughly equivalent to `__thread` in user space. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D69393/new/ https://reviews.llvm.org/D69393 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
