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drm/i915: Remove redundant queue_delayed_work() from throttle ioctl
author
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:08:33 +0000
(08:08 +0100)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:18:21 +0000
(08:18 +0100)
We know, by design, that whilst the GPU is active (and thus we are
throttling) the retire_worker is queued. Therefore attempting to requeue
it with queue_delayed_work() is a no-op and we can safely remove it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link:
http://patchwork.freedesktop.org/patch/msgid/1467616119-4093-3-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem.c
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diff --git
a/drivers/gpu/drm/i915/i915_gem.c
b/drivers/gpu/drm/i915/i915_gem.c
index
78057fa
..
e6675b9
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_gem.c
+++ b/
drivers/gpu/drm/i915/i915_gem.c
@@
-4467,9
+4467,6
@@
i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
return 0;
ret = __i915_wait_request(target, true, NULL, NULL);
- if (ret == 0)
- queue_delayed_work(dev_priv->wq, &dev_priv->gt.retire_work, 0);
-
i915_gem_request_unreference(target);
return ret;