Re: [PATCH 3/3] userfaultfd/selftests: don't rely on GNU extensions for random numbers

On Tue, Sep 21, 2021 at 09:33:23AM -0700, Axel Rasmussen wrote:

Two arguments for doing this:

First, and maybe most importantly, the resulting code is significantly shorter / simpler.

Then, we avoid using GNU libc extensions. Why does this matter? It makes testing userfaultfd with the selftest easier e.g. on distros which use something other than glibc (e.g., Alpine, which uses musl); basically, it makes the test more portable.

Signed-off-by: Axel Rasmussen axelrasmussen@google.com

Reviewed-by: Peter Xu peterx@redhat.com