On Tue, Jul 21, 2020 at 10:40 AM Vitor Massaru Iha <vitor@xxxxxxxxxxx> wrote: > > KUnit test cases run on kthreads, and kthreads don't have an > adddress space (current->mm is NULL), but processes have mm. > > The purpose of this patch is to allow to borrow mm to KUnit kthread > after userspace is brought up, because we know that there are processes > running, at least the process that loaded the module to borrow mm. > > This allows, for example, tests such as user_copy_kunit, which uses > vm_mmap, which needs current->mm. > > Signed-off-by: Vitor Massaru Iha <vitor@xxxxxxxxxxx> Isn't this a dependency for the test_user_copy? Also, don't we also need the change that makes kunit_tool build modules? It seems like you should put these together in a patchset like you did before. If not, you should at least reference the dependencies in each patch.