Amber Lin a7b2451d31
drm/amdkfd: Fix circular lock in nocpsch path ...
Calling free_mqd inside of destroy_queue_nocpsch_locked can cause a
circular lock. destroy_queue_nocpsch_locked is called under a DQM lock,
which is taken in MMU notifiers, potentially in FS reclaim context.
Taking another lock, which is BO reservation lock from free_mqd, while
causing an FS reclaim inside the DQM lock creates a problematic circular
lock dependency. Therefore move free_mqd out of
destroy_queue_nocpsch_locked and call it after unlocking DQM.
Signed-off-by: Amber Lin <Amber.Lin@amd.com >
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com >
Signed-off-by: Alex Deucher <alexander.deucher@amd.com >
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a7b2451d31