tree 86eb6349fa360a2f12390bb25dd8b7f6dae6db34
parent 64b18e125219430fbfe69e61642dbcaa1861434e
author Jens Axboe <jens.axboe@oracle.com> 1174983381 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1174983381 +0200

Update rbtree code

Grab from the later kernels, they embed the color in the pointer
to save some space.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>