[Intel-gfx] [PATCH 4/8] drm/i915: remove struct_mutex lock from the FBC work function
Paulo Zanoni
przanoni at gmail.com
Tue Jun 30 06:53:08 PDT 2015
From: Paulo Zanoni <paulo.r.zanoni at intel.com>
Now that we have the FBC mutex to protect the actual FBC data, we can
remove the struct_mutex from here since we're not dealing with stolen
memory at this point.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
drivers/gpu/drm/i915/intel_fbc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 543b7a2..316feb1 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -335,7 +335,6 @@ static void intel_fbc_work_fn(struct work_struct *__work)
struct drm_device *dev = work->crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- mutex_lock(&dev->struct_mutex);
mutex_lock(&dev_priv->fbc.lock);
if (work == dev_priv->fbc.fbc_work) {
/* Double check that we haven't switched fb without cancelling
@@ -352,7 +351,6 @@ static void intel_fbc_work_fn(struct work_struct *__work)
dev_priv->fbc.fbc_work = NULL;
}
mutex_unlock(&dev_priv->fbc.lock);
- mutex_unlock(&dev->struct_mutex);
kfree(work);
}
--
2.1.4
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