Re: [PATCH] selftests/mm: refactor common code and improve test skipping in guard_region

On Mon, Jul 14, 2025 at 09:00:09PM +0800, wang lian wrote:

Move the generic `FORCE_READ` macro from `guard-regions.c` to the shared `vm_util.h` header to promote code reuse.

In `guard-regions.c`, replace `ksft_exit_skip()` with the `SKIP()` macro to ensure only the current test is skipped on permission failure, instead of terminating the entire test binary.

These two changes look fine but they're not really related so should be separate patches. Looking briefly at guard-regions.c I see a bunch more use of ksft_exit_ functions that ought to be fixed as well, but your fix is good.