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Date: Mon, 18 Nov 2013 14:02:20 -0800 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, darren@...art.com, fweisbec@...il.com, sbw@....edu Subject: [PATCH RFC tip/core/rcu 0/3] RT latency optimizations Hello! This series provides some minor latency optimizations for kernels that build with CONFIG_RCU_NOCB_CPU_ALL=y: 1. Create a static inline implementation of rcu_is_nocb_cpu() that unconditionally returns true when CONFIG_RCU_NOCB_CPU_ALL=y. 2. Create a static inline implementation of rcu_needs_cpu() that unconditionally returns false when CONFIG_RCU_NOCB_CPU_ALL=y. 3. Create static inline implementations of rcu_prepare_for_idle() and rcu_cleanup_after_idle() that are no-ops when CONFIG_RCU_NOCB_CPU_ALL=y. Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rcupdate.h | 13 +++++++++++++ b/include/linux/rcutiny.h | 6 ------ b/include/linux/rcutree.h | 2 ++ b/kernel/rcu/tree.c | 2 +- b/kernel/rcu/tree_plugin.h | 13 +++++++++++-- 5 files changed, 27 insertions(+), 9 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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