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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-03-25 17:23:44 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-04-18 11:38:23 -0700
commitdad81a2026841b5e2651aab58a7398c13cc05847 (patch)
treef666432234764e97893d37155429223e2c44bd8c /kernel/rcu/Makefile
parent32071141b2448458479932fe726ce892cbe1b4e4 (diff)
srcu: Introduce CLASSIC_SRCU Kconfig option
The TREE_SRCU rewrite is large and a bit on the non-simple side, so this commit helps reduce risk by allowing the old v4.11 SRCU algorithm to be selected using a new CLASSIC_SRCU Kconfig option that depends on RCU_EXPERT. The default is to use the new TREE_SRCU and TINY_SRCU algorithms, in order to help get these the testing that they need. However, if your users do not require the update-side scalability that is to be provided by TREE_SRCU, select RCU_EXPERT and then CLASSIC_SRCU to revert back to the old classic SRCU algorithm. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/Makefile')
-rw-r--r--kernel/rcu/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
index b853214a2b99..158e6593d58c 100644
--- a/kernel/rcu/Makefile
+++ b/kernel/rcu/Makefile
@@ -3,7 +3,8 @@
KCOV_INSTRUMENT := n
obj-y += update.o sync.o
-obj-$(CONFIG_TREE_SRCU) += srcu.o
+obj-$(CONFIG_CLASSIC_SRCU) += srcu.o
+obj-$(CONFIG_TREE_SRCU) += srcutree.o
obj-$(CONFIG_TINY_SRCU) += srcutiny.o
obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
obj-$(CONFIG_RCU_PERF_TEST) += rcuperf.o