rcu: Cleanup rcu_init_geometry() code and arithmetics

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This update simplifies rcu_init_geometry() code flow
and makes calculation of the total number of rcu_node
structures more easy to read.

The update relies on the fact num_rcu_lvl[] is never
accessed beyond rcu_num_lvls index by the rest of the
code. Therefore, there is no need initialize the whole
num_rcu_lvl[].

Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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Alexander Gordeev 2015-06-03 08:18:25 +02:00 • committed by Paul E. McKenney

parent 372b0ec24f

commit 679f9858b1

1 changed files with 10 additions and 14 deletions

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kernel/rcu/tree.c

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