linux/kernel/rcu
Paul E. McKenney ae2b217ab5 rcu: Make hotplug operations track GP state, not flags
Currently, there are rcu_data structure fields named ->rcu_onl_gp_seq
and ->rcu_ofl_gp_seq that track the rcu_state.gp_flags field at the
time of the corresponding CPU's last online or offline operation,
respectively.  However, this information is not particularly useful.
It would be better to instead track the grace period state kept
in rcu_state.gp_state.  This would also be consistent with the
initialization in rcu_boot_init_percpu_data(), which is to RCU_GP_CLEANED
(an rcu_state.gp_state value), and also with the diagnostics in
rcu_implicit_dynticks_qs(), whose format is consistent with an integer,
not a bitmask.

This commit therefore makes this change and changes the names to
->rcu_onl_gp_flags and ->rcu_ofl_gp_flags, respectively.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
2024-04-15 16:48:28 +02:00
..
Kconfig rcu: Create NEED_TASKS_RCU to factor out enablement logic 2024-04-15 11:29:48 +02:00
Kconfig.debug rcu: Restrict access to RCU CPU stall notifiers 2023-12-12 02:31:22 +05:30
Makefile rcuperf: Change rcuperf to rcuscale 2020-08-24 18:39:24 -07:00
rcu_segcblist.c rcu: Use rcu_segcblist_segempty() instead of open coding it 2023-10-04 17:33:18 +02:00
rcu_segcblist.h rcu: Throttle callback invocation based on number of ready callbacks 2023-01-03 17:28:34 -08:00
rcu.h Merge branches 'rcu-doc.2024.02.14a', 'rcu-nocb.2024.02.14a', 'rcu-exp.2024.02.14a', 'rcu-tasks.2024.02.26a' and 'rcu-misc.2024.02.14a' into rcu.2024.02.26a 2024-02-26 17:37:25 -08:00
rcuscale.c rcu: Rename jiffies_till_flush to jiffies_lazy_flush 2024-02-14 08:00:57 -08:00
rcutorture.c rcutorture: Suppress rtort_pipe_count warnings until after stalls 2024-02-14 08:00:57 -08:00
refscale.c refscale: Print out additional module parameters 2023-09-11 23:02:18 +02:00
srcutiny.c srcu: Make Tiny SRCU explicitly disable preemption 2024-04-15 11:29:48 +02:00
srcutree.c srcu: Improve comments about acceleration leak 2024-02-14 08:00:57 -08:00
sync.c rcu: Mark writes to rcu_sync ->gp_count field 2024-04-15 16:28:46 +02:00
tasks.h rcu-tasks: Maintain real-time response in rcu_tasks_postscan() 2024-02-25 14:27:49 -08:00
tiny.c rcu: Make Tiny RCU explicitly disable preemption 2024-04-15 11:29:48 +02:00
tree_exp.h rcu/exp: Remove rcu_par_gp_wq 2024-02-14 07:51:36 -08:00
tree_nocb.h Merge branches 'rcu-doc.2024.02.14a', 'rcu-nocb.2024.02.14a', 'rcu-exp.2024.02.14a', 'rcu-tasks.2024.02.26a' and 'rcu-misc.2024.02.14a' into rcu.2024.02.26a 2024-02-26 17:37:25 -08:00
tree_plugin.h rcu: Make hotplug operations track GP state, not flags 2024-04-15 16:48:28 +02:00
tree_stall.h rcu: Mark loads from rcu_state.n_online_cpus 2024-04-15 16:48:26 +02:00
tree.c rcu: Make hotplug operations track GP state, not flags 2024-04-15 16:48:28 +02:00
tree.h rcu: Make hotplug operations track GP state, not flags 2024-04-15 16:48:28 +02:00
update.c rcu: Restrict access to RCU CPU stall notifiers 2023-12-12 02:31:22 +05:30