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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-05-04 14:29:16 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-06-08 18:52:35 -0700
commit2464dd940e23bad227c387a40eec99f7aa02ed96 (patch)
treef6b03f085c113c47f4325a20b1829f43b7a46a5c /init
parentsrcu: Shrink srcu.h by moving docbook and private function (diff)
downloadwireguard-linux-2464dd940e23bad227c387a40eec99f7aa02ed96.tar.xz
wireguard-linux-2464dd940e23bad227c387a40eec99f7aa02ed96.zip
srcu: Apply trivial callback lists to shrink Tiny SRCU
The rcu_segcblist structure provides quite a bit of functionality, and Tiny SRCU needs almost none of it. So this commit replaces Tiny SRCU's uses of rcu_segcblist with a simple singly linked list with tail pointer. This change significantly reduces Tiny SRCU's memory footprint, more than making up for the growth caused by the creation of rcu_segcblist.c Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index d928a3724af9..a2cfde19e8b8 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -573,7 +573,7 @@ config RCU_STALL_COMMON
making these warnings mandatory for the tree variants.
config RCU_NEED_SEGCBLIST
- def_bool ( TREE_RCU || PREEMPT_RCU || TINY_SRCU || TREE_SRCU )
+ def_bool ( TREE_RCU || PREEMPT_RCU || TREE_SRCU )
config CONTEXT_TRACKING
bool