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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-03-25 17:23:44 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-04-18 11:38:23 -0700 |
| commit | dad81a2026841b5e2651aab58a7398c13cc05847 (patch) | |
| tree | f666432234764e97893d37155429223e2c44bd8c /kernel/rcu/Makefile | |
| parent | srcutorture: Print Tiny SRCU reader statistics (diff) | |
| download | linux-dev-dad81a2026841b5e2651aab58a7398c13cc05847.tar.xz linux-dev-dad81a2026841b5e2651aab58a7398c13cc05847.zip | |
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/Makefile | 3 |
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 |