[PATCH] rbtree: support functions used by the io schedulers
authorJens Axboe <axboe@suse.de>
Wed, 21 Jun 2006 07:36:18 +0000 (09:36 +0200)
committerJens Axboe <axboe@nelson.home.kernel.dk>
Fri, 23 Jun 2006 15:10:39 +0000 (17:10 +0200)
They all duplicate macros to check for empty root and/or node, and
clearing a node. So put those in rbtree.h.

Signed-off-by: Jens Axboe <axboe@suse.de>

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