When the lock was introduced in 72aabfb862e40 ("drm/i915/gvt: Add mutual lock for ppgtt mm LRU list") one place got lost.
Signed-off-by: Igor Druzhinin igor.druzhinin@citrix.com --- drivers/gpu/drm/i915/gvt/gtt.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 34cb404..4a48280 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1956,7 +1956,11 @@ void _intel_vgpu_mm_release(struct kref *mm_ref)
if (mm->type == INTEL_GVT_MM_PPGTT) { list_del(&mm->ppgtt_mm.list); + + mutex_lock(&mm->vgpu->gvt->gtt.ppgtt_mm_lock); list_del(&mm->ppgtt_mm.lru_list); + mutex_unlock(&mm->vgpu->gvt->gtt.ppgtt_mm_lock); + invalidate_ppgtt_mm(mm); } else { vfree(mm->ggtt_mm.virtual_ggtt);