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drm/ttm: Use kref_sub instead of repeatedly calling kref_put

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Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2010-11-16 15:21:08 +01:00 committed by Dave Airlie
parent ecf7ace9a8
commit 2357cbe5f4
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/ttm/ttm_bo.c
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@ -266,10 +266,8 @@ static void ttm_bo_ref_bug(struct kref *list_kref)
void ttm_bo_list_ref_sub(struct ttm_buffer_object *bo, int count,
bool never_free)
{
while (count--)
kref_put(&bo->list_kref,
(never_free || (count >= 0)) ? ttm_bo_ref_bug :
ttm_bo_release_list);
kref_sub(&bo->list_kref, count,
(never_free) ? ttm_bo_ref_bug : ttm_bo_release_list);
}
int ttm_bo_reserve(struct ttm_buffer_object *bo,