Re: [PATCH v2 2/4] userfaultfd: selftest: Skip test if userfaultfd() syscall not supported

On Fri, Aug 03, 2018 at 07:00:44PM -0300, Thiago Jung Bauermann wrote: > Since there's no point in doing anything in this case, immediately exit the > process. > > And take the opportunity to improve the error message. > > Before: > > # ./userfaultfd shmem 10 10 > nr_pages: 160, nr_pages_per

[PATCH v2 2/4] userfaultfd: selftest: Skip test if userfaultfd() syscall not supported

Since there's no point in doing anything in this case, immediately exit the process. And take the opportunity to improve the error message. Before: # ./userfaultfd shmem 10 10 nr_pages: 160, nr_pages_per_cpu: 40 userfaultfd syscall not available in this kernel # echo $? 1 After: #