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authorOded Gabbay <oded.gabbay@gmail.com>2019-07-22 17:37:22 +0300
committerOded Gabbay <oded.gabbay@gmail.com>2019-09-05 14:55:26 +0300
commit4aecb05e526a421bff2bf4feeda7687efa74333e (patch)
tree4763ac5101cc545ed9e9ef5ed240b9a2853d7f67 /drivers/misc
parentb888751a02e7b2bfa4c9660bd8c5af0ef886aeef (diff)
habanalabs: kill user process after CS rollback
This patch calls the kill user process function after we rollback the in-flight CSs. This is because the user process can't be closed while there are open CSs. Therefore, there is no point of sending it a SIGKILL before we do the rollback CS part. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/habanalabs/device.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c
index 7a8f9d0b71b5..257438d7a632 100644
--- a/drivers/misc/habanalabs/device.c
+++ b/drivers/misc/habanalabs/device.c
@@ -630,8 +630,6 @@ static void device_hard_reset_pending(struct work_struct *work)
container_of(work, struct hl_device_reset_work, reset_work);
struct hl_device *hdev = device_reset_work->hdev;
- device_kill_open_processes(hdev);
-
hl_device_reset(hdev, true, true);
kfree(device_reset_work);
@@ -736,6 +734,13 @@ again:
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ if (from_hard_reset_thread)
+ device_kill_open_processes(hdev);
+
/* Release kernel context */
if ((hard_reset) && (hl_ctx_put(hdev->kernel_ctx) == 1))
hdev->kernel_ctx = NULL;
@@ -1129,8 +1134,6 @@ void hl_device_fini(struct hl_device *hdev)
hdev->hard_reset_pending = true;
- device_kill_open_processes(hdev);
-
hl_hwmon_fini(hdev);
device_late_fini(hdev);
@@ -1149,6 +1152,12 @@ void hl_device_fini(struct hl_device *hdev)
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ device_kill_open_processes(hdev);
+
hl_cb_pool_fini(hdev);
/* Release kernel context */