Konsta Holtta 9d2e773051 gpu: nvgpu: mark thread stopped when it independently quits ...

It's technically possible for a thread to exit without first calling
nvgpu_thread_stop() in another, so mark the thread exit status from the
thread after it has finished instead of in nvgpu_thread_stop(). Do this
by starting the thread as a proxy function which calls the actual thread
function and then sets the flag.

Also, add a new flag to actually signify the running state because the
thread->task going null abruptly would break nvgpu_thread_stop().

This does not guarantee that the kernel thread itself has stopped, but
the function which can be considered as an "nvgpu thread" will be.

Change-Id: Ib911b02bd51342ddeb8e6b9533ef7943f2606d2d
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1501571
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

2017-06-19 02:15:53 -07:00

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