21 Nov
2019
21 Nov
'19
8:47 a.m.
On Thu, Nov 21, 2019 at 09:10:21AM +0100, Gerd Hoffmann wrote:
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.
Right, I mixed things up. Looks all good. -Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch