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authorPaul E. McKenney <paul.mckenney@linaro.org>2011-06-18 20:55:39 +0400
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-09-29 08:38:20 +0400
commit965a002b4f1a458c5dcb334ec29f48a0046faa25 (patch)
tree9aa3847fd44b322a73631758e7337632e5e3a32d /include/linux/rcutiny.h
parent385680a9487d2f85382ad6d74e2a15837e47bfd9 (diff)
downloadlinux-965a002b4f1a458c5dcb334ec29f48a0046faa25.tar.xz
rcu: Make TINY_RCU also use softirq for RCU_BOOST=n
This patch #ifdefs TINY_RCU kthreads out of the kernel unless RCU_BOOST=y, thus eliminating context-switch overhead if RCU priority boosting has not been configured. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/rcutiny.h')
-rw-r--r--include/linux/rcutiny.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 4eab233a00cd..00b7a5e493d2 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -27,9 +27,13 @@
#include <linux/cache.h>
+#ifdef CONFIG_RCU_BOOST
static inline void rcu_init(void)
{
}
+#else /* #ifdef CONFIG_RCU_BOOST */
+void rcu_init(void);
+#endif /* #else #ifdef CONFIG_RCU_BOOST */
static inline void rcu_barrier_bh(void)
{