21 Nov
2019
21 Nov
'19
8:10 a.m.
Hi,
Aside: the amdgpu isn't great because it's racy, userspace could have guessed the fd and already started an mmap before we managed to update stuff.
Can't see that race. When I read the code correctly the fd is created and installed (using dma_buf_fd) only after dmabuf setup is finished.
cheers, Gerd