diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_throttle.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_request.c | 13 |
4 files changed, 14 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_throttle.c b/drivers/gpu/drm/i915/gem/i915_gem_throttle.c index 1e372420771b..540ef0551789 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_throttle.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_throttle.c @@ -50,10 +50,8 @@ i915_gem_throttle_ioctl(struct drm_device *dev, void *data, if (time_after_eq(request->emitted_jiffies, recent_enough)) break; - if (target) { + if (target && xchg(&target->file_priv, NULL)) list_del(&target->client_link); - target->file_priv = NULL; - } target = request; } diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b5b2a64753e6..723b9b7202b0 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1730,7 +1730,7 @@ static void i915_driver_postclose(struct drm_device *dev, struct drm_file *file) i915_gem_release(dev, file); mutex_unlock(&dev->struct_mutex); - kfree(file_priv); + kfree_rcu(file_priv, rcu); /* Catch up with all the deferred frees from "this" client */ i915_gem_flush_free_objects(to_i915(dev)); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ba3f6d82ef26..f5e39a3bfff6 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -185,7 +185,11 @@ struct i915_mmu_object; struct drm_i915_file_private { struct drm_i915_private *dev_priv; - struct drm_file *file; + + union { + struct drm_file *file; + struct rcu_head rcu; + }; struct { spinlock_t lock; diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index a53777dd371c..18865ce04e13 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -169,16 +169,17 @@ remove_from_client(struct i915_request *request) { struct drm_i915_file_private *file_priv; - file_priv = READ_ONCE(request->file_priv); - if (!file_priv) + if (!READ_ONCE(request->file_priv)) return; - spin_lock(&file_priv->mm.lock); - if (request->file_priv) { + rcu_read_lock(); + file_priv = xchg(&request->file_priv, NULL); + if (file_priv) { + spin_lock(&file_priv->mm.lock); list_del(&request->client_link); - request->file_priv = NULL; + spin_unlock(&file_priv->mm.lock); } - spin_unlock(&file_priv->mm.lock); + rcu_read_unlock(); } static void free_capture_list(struct i915_request *request) |