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authorJames Hogan <james.hogan@imgtec.com>2013-07-25 15:34:25 +0100
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2013-08-18 17:40:25 -0700
commit5361471437a97cf493c2aa7d881bbedc9c248415 (patch)
treeec88e756a30c31c37cf74eebcc3bc129a08a114c /init/Kconfig
parentc34ac00caefbe49d40058ae7200bd58725cebb45 (diff)
downloadlinux-5361471437a97cf493c2aa7d881bbedc9c248415.tar.gz
linux-5361471437a97cf493c2aa7d881bbedc9c248415.tar.xz
rcu: Select IRQ_WORK from TREE_PREEMPT_RCU
TREE_RCU and TREE_PREEMPT_RCU both cause kernel/rcutree.c to be built, but only TREE_RCU selects IRQ_WORK, which can result in an undefined reference to irq_work_queue for some (random) configs: kernel/built-in.o In function `rcu_start_gp_advanced': kernel/rcutree.c:1564: undefined reference to `irq_work_queue' Select IRQ_WORK from TREE_PREEMPT_RCU too to fix this. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'init/Kconfig')
-rw-r--r--init/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 247084b..c08a549 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -470,6 +470,7 @@ config TREE_RCU
config TREE_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