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authorChristian König <christian.koenig@amd.com>2018-11-29 18:25:10 +0300
committerAlex Deucher <alexander.deucher@amd.com>2018-11-30 20:00:57 +0300
commit082f0f21f71c522491a0cac4895b32bbab1b1006 (patch)
tree7525ddd4c305a97aa13e0f3b2ba4b1d752b5ef51 /drivers/gpu/drm/ttm
parentfb6e4709e32ce2c8eae2ca03d2175c3c24adbc54 (diff)
downloadlinux-082f0f21f71c522491a0cac4895b32bbab1b1006.tar.xz
drm/ttm: fix LRU handling in ttm_buffer_object_transfer
We need to set the NO_EVICT flag on the ghost object or otherwise we are adding it to the LRU. When it is added to the LRU we can run into a race between destroying and evicting it again. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_util.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index ba80150d1052..895d77d799e4 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -492,8 +492,10 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
if (!fbo)
return -ENOMEM;
- ttm_bo_get(bo);
fbo->base = *bo;
+ fbo->base.mem.placement |= TTM_PL_FLAG_NO_EVICT;
+
+ ttm_bo_get(bo);
fbo->bo = bo;
/**