Quoting Matthew Auld (2019-02-14 14:57:28)
> @@ -157,6 +163,10 @@ struct drm_i915_gem_object {
> unsigned int userfault_count;
> struct list_head userfault_link;
>
> + enum i915_cpu_mmap_origin_type mmap_origin;
> + atomic_t mmap_count;
> + u64 mmap_flags;
These flags must be per-mmap instance, userspace does try to keep
several different types of mmaps active.
-Chris
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