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RCU: add help text for "RCU implementation type" 

This patch supplies help text for the "RCU implementation type"
kernel configuration choice.

Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Paul E. McKenney 2008-01-31 22:45:22 +01:00 committed by Ingo Molnar
parent 8af03e782c
commit 095031052b
1 changed files with 8 additions and 0 deletions
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init/Kconfig
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@ -775,6 +775,14 @@ config PREEMPT_NOTIFIERS
choice
prompt "RCU implementation type:"
default CLASSIC_RCU
help
This allows you to choose either the classic RCU implementation
that is designed for best read-side performance on non-realtime
systems, or the preemptible RCU implementation for best latency
on realtime systems. Note that some kernel preemption modes
will restrict your choice.
Select the default if you are unsure.
config CLASSIC_RCU
bool "Classic RCU"