[1/3], It was V1's [3/3]
[2/3], reimplement V1's [1/3], and fix the issue in
rcutree_offline_cpu() instead of rcutree_dead_cpu()
[3/3], handling TICK_DEP_BIT_RCU when cpu offlining
V1: https://lore.kernel.org/all/20220910203622.GI4315@paulmck-ThinkPad-P17-Gen-1/T/
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
Cc: David Woodhouse <dwmw@xxxxxxxxxxxx>
Cc: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Neeraj Upadhyay <quic_neeraju@xxxxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Joel Fernandes <joel@xxxxxxxxxxxxxxxxx>
Cc: "Jason A. Donenfeld" <Jason@xxxxxxxxx>
To: rcu@xxxxxxxxxxxxxxx
Pingfan Liu (3):
rcu: Keep qsmaskinitnext fresh when rcutree_online_cpu()
rcu: Resort to cpu_dying_mask for affinity when offlining
rcu: coordinate tick dependency during concurrent offlining
kernel/rcu/tree.c | 21 ++++++++++++++-------
kernel/rcu/tree.h | 1 +
kernel/rcu/tree_plugin.h | 13 ++++++++++++-
3 files changed, 27 insertions(+), 8 deletions(-)
--
2.31.1
