On Wed, Dec 24, 2014 at 05:55:28PM +0800, Lai Jiangshan wrote:
> The 48a7639ce80c ("rcu: Make callers awaken grace-period kthread")
> removed the irq_work_queue(), so the TREE_RCU doesn't need
> irq work any more.
>
> Signed-off-by: Lai Jiangshan <[email protected]>
Good catch, queued for 3.20. Thank you!
Thanx, Paul
> ---
> init/Kconfig | 2 --
> kernel/rcu/tree.h | 1 -
> 2 files changed, 0 insertions(+), 3 deletions(-)
>
> diff --git a/init/Kconfig b/init/Kconfig
> index 9afb971..39b4313 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -470,7 +470,6 @@ choice
> config TREE_RCU
> bool "Tree-based hierarchical RCU"
> depends on !PREEMPT && SMP
> - select IRQ_WORK
> help
> This option selects the RCU implementation that is
> designed for very large SMP system with hundreds or
> @@ -480,7 +479,6 @@ config TREE_RCU
> config PREEMPT_RCU
> bool "Preemptible tree-based hierarchical RCU"
> depends on PREEMPT
> - select IRQ_WORK
> help
> This option selects the RCU implementation that is
> designed for very large SMP systems with hundreds or
> diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
> index 8e7b184..a47a13c 100644
> --- a/kernel/rcu/tree.h
> +++ b/kernel/rcu/tree.h
> @@ -27,7 +27,6 @@
> #include <linux/threads.h>
> #include <linux/cpumask.h>
> #include <linux/seqlock.h>
> -#include <linux/irq_work.h>
>
> /*
> * Define shape of hierarchy based on NR_CPUS, CONFIG_RCU_FANOUT, and
> --
> 1.7.4.4
>
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