prio_tree: introduce prio_set_parent()
authorXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Fri, 23 Mar 2012 22:02:15 +0000 (15:02 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 23 Mar 2012 23:58:36 +0000 (16:58 -0700)
Introduce prio_set_parent() to abstract the operation which is used to
attach the node to its parent.

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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