Hello! This series makes adjustments to RCU to better handle lazy preemption: 1. fix header guard for rcu_all_qs(), courtesy of Ankur Arora. 2. rename PREEMPT_AUTO to PREEMPT_LAZY, courtesy of Ankur Arora. 3. update __cond_resched comment about RCU quiescent states, courtesy of Ankur Arora. 4. handle unstable rdp in rcu_read_unlock_strict(), courtesy of Ankur Arora. 5. handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y, courtesy of Ankur Arora. 6. provide quiescent states, courtesy of Ankur Arora. 7. limit PREEMPT_RCU configurations, courtesy of Ankur Arora. 8. Make scenario TREE10 build CONFIG_PREEMPT_LAZY=y. 9. Make scenario TREE07 build CONFIG_PREEMPT_LAZY=y. Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rcupdate.h | 2 - b/include/linux/rcutree.h | 2 - b/include/linux/srcutiny.h | 2 - b/kernel/rcu/Kconfig | 2 - b/kernel/rcu/srcutiny.c | 14 +++---- b/kernel/rcu/tree_plugin.h | 11 +++++ b/kernel/sched/core.c | 4 +- b/kernel/trace/trace_osnoise.c | 32 +++++++--------- b/tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 3 + b/tools/testing/selftests/rcutorture/configs/rcu/TREE10 | 3 + kernel/rcu/Kconfig | 2 - kernel/rcu/tree_plugin.h | 11 +++-- 12 files changed, 51 insertions(+), 37 deletions(-)
