linux-kernel - [PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC

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Message-ID: <20090406221628.GA18232@linux.vnet.ibm.com>
Date:	Mon, 6 Apr 2009 15:16:28 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, akpm@...ux-foundation.org, dipankar@...ibm.com,
	niv@...ibm.com, manfred@...orfullife.com, peterz@...radead.org,
	lethal@...ux-sh.org, kernel@...tstofly.org, andi@...stfloor.org,
	kyle@...artin.ca, deller@....de, davem@...emloft.net,
	ralf@...ux-mips.org, jes@....com, benh@...nel.crashing.org,
	paulus@...ba.org, anton@...ba.org
Subject: [PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC_RCU).

Given that there have been no TREE_RCU bugs reported for some months,
it is time to make TREE_RCU be the default RCU implementation.  The rest
of this series updates defconfig files that: (1) have CONFIG_SMP=y and
(2) explicitly mention CONFIG_CLASSIC_RCU.

Given that I don't have access to most of the relevant hardware, much
of this is untested.

Changes since v1: per-arch defconfig patches dropped.

Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 init/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 236a793..ef9d030 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -302,7 +302,7 @@ menu "RCU Subsystem"

 choice
 	prompt "RCU Implementation"
-	default CLASSIC_RCU
+	default TREE_RCU

 config CLASSIC_RCU
 	bool "Classic RCU"
-- 
1.5.2.5


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