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(-)
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