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rcu: Break dependency of RCU_FANOUT_LEAF on RCU_FANOUT 

RCU_FANOUT_LEAF's range and default values depend on the value of
RCU_FANOUT, which at the time seemed like a cute way to save two lines
of Kconfig code.  However, adding a dependency from both of these
Kconfig parameters on RCU_EXPERT requires that RCU_FANOUT_LEAF operate
correctly even if RCU_FANOUT is undefined.  This commit therefore
allows RCU_FANOUT_LEAF to take on the full range of permitted values,
even in cases where RCU_FANOUT is undefined.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Eliminate redundant "default" as suggested by Pranith Kumar. ]
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
hifive-unleashed-5.1
Paul E. McKenney 2015-04-20 18:27:54 -07:00
parent 78cae10b3a
commit 8739c5cb0f
1 changed files with 2 additions and 2 deletions
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init/Kconfig
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@ -601,8 +601,8 @@ config RCU_FANOUT
config RCU_FANOUT_LEAF
int "Tree-based hierarchical RCU leaf-level fanout value"
range 2 RCU_FANOUT if 64BIT
range 2 RCU_FANOUT if !64BIT
range 2 64 if 64BIT
range 2 32 if !64BIT
depends on TREE_RCU || PREEMPT_RCU
default 16
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