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drm/i915/gvt: Stop checking for impossible interrupts from a kthread 

The kthread will not be interrupted, don't even bother checking.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Chris Wilson 2016-10-19 11:11:43 +01:00 committed by Zhenyu Wang
parent 0eb742d7af
commit f460c251ea
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/i915/gvt/scheduler.c
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@ -423,12 +423,7 @@ static int workload_thread(void *priv)
/*
* Always take i915 big lock first
*/
ret = i915_mutex_lock_interruptible(&gvt->dev_priv->drm);
if (ret < 0) {
gvt_err("i915 submission is not available, retry\n");
schedule_timeout(1);
continue;
}
mutex_lock(&gvt->dev_priv->drm.struct_mutex);
gvt_dbg_sched("ring id %d will dispatch workload %p\n",
workload->ring_id, workload);
@ -447,7 +442,7 @@ static int workload_thread(void *priv)
workload->ring_id, workload);
workload->status = i915_wait_request(workload->req,
I915_WAIT_INTERRUPTIBLE | I915_WAIT_LOCKED,
I915_WAIT_LOCKED,
NULL, NULL);
if (workload->status != 0)
gvt_err("fail to wait workload, skip\n");