Konsta Holtta e1ae4e3053 gpu: nvgpu: protect channel ioctls with a mutex ...

Add a big mutex for protecting the channel during ioctls, in case the
userspace uses the same channel from several threads at once. The lock
is taken during all operations except CHANNEL_WAIT, which could deadlock.

Bug 1603482

Change-Id: Ibed962eadc9f00645abd54413dde9aaee00377ab
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/678871
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

2015-04-04 18:08:27 -07:00

..

gpu/nvgpu

gpu: nvgpu: protect channel ioctls with a mutex

2015-04-04 18:08:27 -07:00