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drm/i915/gvt: more locking for ppgtt mm LRU list

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commit 0e9d7bb293f3f9c3ee376b126141407efb265f31 upstream.

When the lock was introduced in commit 72aabfb862e40 ("drm/i915/gvt: Add mutual
lock for ppgtt mm LRU list") one place got lost.

Fixes: 72aabfb862e4 ("drm/i915/gvt: Add mutual lock for ppgtt mm LRU list")
Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1580742421-25194-1-git-send-email-igor.druzhinin@citrix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Igor Druzhinin 2020-02-03 15:07:01 +00:00 committed by Greg Kroah-Hartman
parent 19f8fb2731
commit 7de50906e7
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/gvt/gtt.c
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@ -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);