[PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC_RCU).

[PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC_RCU).

[Paul E. McKenney]

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@linux.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

Re: [PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC_RCU).

[Kyle McMartin]

On Mon, Apr 06, 2009 at 03:16:28PM -0700, Paul E. McKenney wrote:
> 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@linux.vnet.ibm.com>
> 

Do you intend to do this for .30 or .31? I'll try to test it as
soon as I can on parisc... Somehow I suspect it won't be the worst
of the problems... :)

regards, Kyle

Re: [PATCH -tip] v2: Make TREE_RCU be default (was CLASSIC_RCU).

[Paul E. McKenney]

On Mon, Apr 06, 2009 at 06:18:34PM -0400, Kyle McMartin wrote:
> On Mon, Apr 06, 2009 at 03:16:28PM -0700, Paul E. McKenney wrote:
> > 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@linux.vnet.ibm.com>
> 
> Do you intend to do this for .30 or .31? I'll try to test it as
> soon as I can on parisc... Somehow I suspect it won't be the worst
> of the problems... :)

I was hoping for .30 -- should I now don my asbestos suit?  ;-)

						Thanx, Paul