[PATCH 4.10 06/29] drm/i915: Store a permanent error in obj->mm.pages

4.10-stable review patch. If anyone has any objections, please let me know. -- From: Chris Wilson commit 0d9dc306e15b59bf50db87ebcb1e2248586d4733 upstream. Once the object has been truncated, it is unrecoverable. To facilitate detection of this state

[PATCH 4.10 06/29] drm/i915: Store a permanent error in obj->mm.pages

4.10-stable review patch. If anyone has any objections, please let me know. -- From: Chris Wilson commit 0d9dc306e15b59bf50db87ebcb1e2248586d4733 upstream. Once the object has been truncated, it is unrecoverable. To facilitate detection of this state store the error in