| From: |
| "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |
| To: |
| linux-kernel@vger.kernel.org |
| Subject: |
| [PATCH tip/core/rcu 0/5] In-kernel programmatic grace-period expediting for v4.1 |
| Date: |
| Tue, 3 Mar 2015 09:10:56 -0800 |
| Message-ID: |
| <20150303171056.GA11435@linux.vnet.ibm.com> |
| Cc: |
| mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com |
| Archive‑link: | |
Article |
Hello!
This series provides an in-kernel API to expedite and unexpedite normal
RCU grace-period primitives such as synchronize_rcu(). It also provides
a Kconfig parameter that implicitly expedites at boot time, along with
a function that notes the end of in-kernel boot. This last function is
intended to be invoked just before init is spawned.
1. Provide rcu_expedite_gp() and rcu_unexpedite_gp().
2. Add rcu_expedite_gp() and rcu_unexpedite_gp() to rcutorture.
3. Change open-coded references ot the rcu_expedited variable to
instead use the new rcu_gp_is_expedited() function.
4. Add a CONFIG_RCU_EXPEDITE_BOOT Kconfig parameter that emulates
a very early boot rcu_expedite_gp(). Also provide a new
rcu_end_inkernel_boot() function that provides the corresponding
rcu_unexpedite_gp() if CONFIG_RCU_EXPEDITE_BOOT.
5. Make consistent use of variables in rcu_torture_writer().
Thanx, Paul
------------------------------------------------------------------------
b/include/linux/rcupdate.h | 21 ++++++++++++++++
b/init/Kconfig | 13 +++++++++
b/kernel/rcu/rcutorture.c | 27 +++++++++++++++++++-
b/kernel/rcu/srcu.c | 2 -
b/kernel/rcu/tree.c | 9 +++---
b/kernel/rcu/tree_plugin.h | 2 -
b/kernel/rcu/update.c | 59 ++++++++++++++++++++++++++++++++++++++++++++-
7 files changed, 125 insertions(+), 8 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
