Commit 5a43b88e authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Paul E. McKenney
Browse files

rcu: Remove "select IRQ_WORK" from config TREE_RCU 



The 48a7639c ("rcu: Make callers awaken grace-period kthread")
removed the irq_work_queue(), so the TREE_RCU doesn't need
irq work any more.  This commit therefore updates RCU's Kconfig and

Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 41050a00

init/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -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

kernel/rcu/tree.h

+0 −1
Original line number Diff line number Diff line
@@ -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

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