git: drm/ttm: Sync ttm_lock.c with Linux

[Francois Tigeot]

commit 652c4042c7549eab6854eb7d36970bef0205a821
Author: François Tigeot <ftigeot at wolfpond.org>
Date:   Sat Nov 10 09:31:20 2018 +0100

    drm/ttm: Sync ttm_lock.c with Linux

Summary of changes:
 sys/dev/drm/ttm/ttm_lock.c | 156 +++++++++++++++++----------------------------
 1 file changed, 58 insertions(+), 98 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/652c4042c7549eab6854eb7d36970bef0205a821


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