Re: [Linux-kernel-mentees] [PATCH v3] lib: kunit: Provides a userspace memory context when tests are compiled as module
From: Brendan Higgins via Linux-kernel-mentees <hidden>
Date: 2020-07-21 23:53:06
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linux-kselftest, lkml
On Tue, Jul 21, 2020 at 10:40 AM Vitor Massaru Iha [off-list ref] 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 <redacted>
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. _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees