Hi everybody, I am trying to set up mount namespaces on top of a 'struct vfsmount' and run user mode threads inside that namespace. All of this from kernel code. However there doesn't seem a way to run the equivalent of unshare(CLONE_NEWNS) inside the kernel. Is this something that should work and if so, how? The goal is that these processes execute inside a nearly empty filesystem tree. The full context is in this series: https://lore.kernel.org/all/20250217-kunit-kselftests-v1-0-42b4524c3b0a@xxxxxxxxxxxxx/ Specifically "[PATCH 09/12] kunit: Introduce UAPI testing framework" in kunit_uapi_mount_tmpfs() and related. Thanks, Thomas
