Commit-ID: bbe3eae8bb039b5ffd64a6e3d1a0deaa1f3cbae9 Gitweb: http://git.kernel.org/tip/bbe3eae8bb039b5ffd64a6e3d1a0deaa1f3cbae9 Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> AuthorDate: Sun, 13 Sep 2009 09:15:08 -0700 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Fri, 18 Sep 2009 00:05:53 +0200 rcu: Kconfig help needs to say that TREE_PREEMPT_RCU scales down To quote Valdis: This leaves somebody who has a laptop wondering which choice is best for a system with only one or two cores that has CONFIG_PREEMPT defined. One choice says it scales down nicely, the other explicitly has a 'depends on PREEMPT' attached to it... So add "scales down nicely" to TREE_PREEMPT_RCU to match that of TREE_RCU. Suggested-by: Valdis Kletnieks <Valdis.Kletnieks@xxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> Cc: laijs@xxxxxxxxxxxxxx Cc: dipankar@xxxxxxxxxx Cc: akpm@xxxxxxxxxxxxxxxxxxxx Cc: mathieu.desnoyers@xxxxxxxxxx Cc: josh@xxxxxxxxxxxxxxxx Cc: dvhltc@xxxxxxxxxx Cc: niv@xxxxxxxxxx Cc: peterz@xxxxxxxxxxxxx Cc: rostedt@xxxxxxxxxxx LKML-Reference: <12528585112362-git-send-email-> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- init/Kconfig | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 8e8b76d..4c2c936 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -331,7 +331,8 @@ config TREE_PREEMPT_RCU This option selects the RCU implementation that is designed for very large SMP systems with hundreds or thousands of CPUs, but for which real-time response - is also required. + is also required. It also scales down nicely to + smaller systems. endchoice -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html