drm/ttm: remove lru_lock around ttm_bo_reserve
There should no longer be assumptions that reserve will always succeed with the lru lock held, so we can safely break the whole atomic reserve/lru thing. As a bonus this fixes most lockdep annotations for reservations. Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: NJerome Glisse <jglisse@redhat.com>
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