Hello!
This series reduces memory footprint (RCU callbacks posted by no-CBs
CPUs) by providing separate rcuog kthreads that wait for grace periods,
thus avoiding the current situation in which callbacks are delayed while
the leader rcuo kthreads invokes callbacks:
1. Rename rcu_data fields to prepare for forward-progress work.
2. Update comments to prepare for forward-progress work.
3. Provide separate no-CBs grace-period kthreads.
4. Rename nocb_follower_wait() to nocb_cb_wait().
5. Rename wake_nocb_leader() to wake_nocb_gp().
6. Rename __wake_nocb_leader() to __wake_nocb_gp().
7. Rename wake_nocb_leader_defer() to wake_nocb_gp_defer().
8. Rename rcu_organize_nocb_kthreads() local variable.
9. Rename and document no-CB CB kthread sleep trace event.
10. Rename rcu_nocb_leader_stride kernel boot parameter.
11. Print gp/cb kthread hierarchy if dump_tree.
Thanx, Paul
------------------------------------------------------------------------
Documentation/admin-guide/kernel-parameters.txt | 13 -
include/trace/events/rcu.h | 3
kernel/rcu/tree.h | 28 +-
kernel/rcu/tree_plugin.h | 312 ++++++++++++------------
4 files changed, 183 insertions(+), 173 deletions(-)
