Commits
Ben Skeggs committed 4e67bee8e12
drm/nouveau/vm: take subdev mutex, not the mm, protects against race with vm/nvc0 nvc0_vm_flush() accesses the pgd list, which will soon be able to race with vm_unlink() during channel destruction. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>