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drm/i915: Convert EFAULT into a silent SIGBUS

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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>
This commit is contained in:
Chris Wilson 2014-01-31 11:34:57 +00:00 committed by Daniel Vetter
parent e38486943e
commit 45d678173a
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/i915_gem.c
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@ -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: