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Subject[PATCH 3.19.y-ckt 73/92] drm/amdkfd: allow unregister process with queues
Date
3.19.8-ckt1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oded Gabbay <oded.gabbay@gmail.com>

commit 1e5ec956a057585adaa1365615c82810b2f5356f upstream.

Sometimes we might unregister process that have queues, because we couldn't
preempt the queues. Until now we blocked it with BUG_ON but instead just
print it as debug.

Reviewed-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index c80a8a3..c9d2f3a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -445,9 +445,10 @@ static int unregister_process_nocpsch(struct device_queue_manager *dqm,

BUG_ON(!dqm || !qpd);

- BUG_ON(!list_empty(&qpd->queues_list));
+ pr_debug("In func %s\n", __func__);

- pr_debug("kfd: In func %s\n", __func__);
+ pr_debug("qpd->queues_list is %s\n",
+ list_empty(&qpd->queues_list) ? "empty" : "not empty");

retval = 0;
mutex_lock(&dqm->lock);
--
1.9.1


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