Displaying 1 result from an estimated 1 matches for "4af3227".
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43227
2012 Apr 22
1
[PATCH 1/5] drm: add optional per device rwsem for all ioctls
...k(&drm_global_mutex);
}
+ if (dev->driver->ioctls_need_rwsem)
+ up_read(&dev->ioctls_rwsem);
+
if (cmd & IOC_OUT) {
if (copy_to_user((void __user *)arg, kdata,
usize) != 0)
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index aa454f8..4af3227 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -275,6 +275,8 @@ int drm_fill_in_dev(struct drm_device *dev,
mutex_init(&dev->struct_mutex);
mutex_init(&dev->ctxlist_mutex);
+ init_rwsem(&dev->ioctls_rwsem);
+
if (drm_ht_create(&dev->m...