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authorThomas Hellstrom <thellstrom@vmware.com>2012-06-01 15:39:11 +0200
committerDave Airlie <airlied@redhat.com>2012-06-01 17:00:19 +0100
commita8ff3ee211fccf708e1911bbc096625453ebf759 (patch)
tree8780763ddef18c1877331c9b97782c7a3d49e1a9 /drivers/gpu/drm/ttm
parent416a2bd274566a6f607a271f524b2dc0b84d9106 (diff)
downloadblackbird-op-linux-a8ff3ee211fccf708e1911bbc096625453ebf759.tar.gz
blackbird-op-linux-a8ff3ee211fccf708e1911bbc096625453ebf759.zip
drm/ttm: Fix spinlock imbalance
This imbalance may cause hangs when TTM is trying to swap out a buffer that is already on the delayed delete list. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 36792bd4da77..b67cfcaa661f 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1834,6 +1834,7 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
spin_unlock(&glob->lru_lock);
(void) ttm_bo_cleanup_refs(bo, false, false, false);
kref_put(&bo->list_kref, ttm_bo_release_list);
+ spin_lock(&glob->lru_lock);
continue;
}
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