drm/i915: Convert EFAULT into a silent SIGBUS

EFAULT will be a possible return code where backing storage is transient, such after it is purged by madvise. As such it is to be expected and so should not trigger a WARN inside i915_gem_fault() but be converted silently to SIGBUS. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
mariux64 · Feb 4, 2014 · 45d6781 · 45d6781
1 parent e384869
commit 45d6781
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
@@ -1453,6 +1453,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		ret = VM_FAULT_OOM;
 		break;
 	case -ENOSPC:
+	case -EFAULT:
 		ret = VM_FAULT_SIGBUS;
 		break;
 	default: