Re: [PATCH 4/6] s390: add system call to run tasks with modified branch prediction

[Florian Weimer]

On 01/17/2018 10:48 AM, Martin Schwidefsky wrote:

         rc = syscall(__NR_s390_modify_bp);
         if (rc) {
                 perror("s390_modify_bp");
                 exit(EXIT_FAILURE);
         }

Isn't this traditionally done through personality or prctl?

This looks like something other architectures may want as well.

Thanks,
Florian