Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-10 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 08:22:50PM -0800, Josh Triplett wrote: > On Mon, Jan 07, 2013 at 02:19:15PM -0800, Paul E. McKenney wrote: > > On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: > > > On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: > > > > On Mon, Jan 07, 2013

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-10 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 08:22:50PM -0800, Josh Triplett wrote: On Mon, Jan 07, 2013 at 02:19:15PM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Mon, Jan 07, 2013 at 02:19:15PM -0800, Paul E. McKenney wrote: > On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: > > On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: > > > On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: > > > > This patch seems

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: > On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: > > On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: > > > On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: > > > > rcu: Provide RCU CPU

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: > On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: > > On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: > > > rcu: Provide RCU CPU stall warnings for tiny RCU > > > > > > Tiny RCU has historically

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: > On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: > > rcu: Provide RCU CPU stall warnings for tiny RCU > > > > Tiny RCU has historically omitted RCU CPU stall warnings in order to > > reduce memory requirements,

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: > rcu: Provide RCU CPU stall warnings for tiny RCU > > Tiny RCU has historically omitted RCU CPU stall warnings in order to > reduce memory requirements, however, lack of these warnings caused Thomas > Gleixner some debugging pain

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: rcu: Provide RCU CPU stall warnings for tiny RCU Tiny RCU has historically omitted RCU CPU stall warnings in order to reduce memory requirements, however, lack of these warnings caused Thomas Gleixner some debugging pain

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: rcu: Provide RCU CPU stall warnings for tiny RCU Tiny RCU has historically omitted RCU CPU stall warnings in order to reduce memory requirements, however, lack

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: rcu: Provide RCU CPU stall warnings for tiny RCU Tiny RCU has historically omitted RCU CPU

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Paul E. McKenney
On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: On Sat, Jan 05, 2013 at 09:50:59AM -0800, Paul E. McKenney wrote: rcu: Provide RCU CPU stall

Re: [PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-07 Thread Josh Triplett
On Mon, Jan 07, 2013 at 02:19:15PM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at 09:56:06AM -0800, Josh Triplett wrote: On Mon, Jan 07, 2013 at 08:57:48AM -0800, Paul E. McKenney wrote: On Mon, Jan 07, 2013 at 07:58:10AM -0800, Josh Triplett wrote: This patch seems reasonable to

[PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-05 Thread Paul E. McKenney
rcu: Provide RCU CPU stall warnings for tiny RCU Tiny RCU has historically omitted RCU CPU stall warnings in order to reduce memory requirements, however, lack of these warnings caused Thomas Gleixner some debugging pain recently. Therefore, this commit adds RCU CPU stall warnings to tiny RCU if

[PATCH tip/core/rcu 1/1] Tiny RCU changes for 3.9

2013-01-05 Thread Paul E. McKenney
rcu: Provide RCU CPU stall warnings for tiny RCU Tiny RCU has historically omitted RCU CPU stall warnings in order to reduce memory requirements, however, lack of these warnings caused Thomas Gleixner some debugging pain recently. Therefore, this commit adds RCU CPU stall warnings to tiny RCU if