diff options
| author | Konsta Holtta <kholtta@nvidia.com> | 2015-01-29 03:35:04 -0500 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2015-04-04 21:08:27 -0400 |
| commit | e1ae4e3053d5860d671e3264a467ade376828784 (patch) | |
| tree | f9e728b8f195962a2dbcb18546523ae3ccf4d4cd /drivers/gpu/nvgpu/gk20a/gr_gk20a.c | |
| parent | 593c7a3f3027cf95e1b35f9acb8b3d0dc45f24e4 (diff) | |
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>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/gr_gk20a.c')
0 files changed, 0 insertions, 0 deletions