linux/kernel/rcu
Paul E. McKenney a73fc3dcc6 rcu: Clean up after the SRCU-fastification of RCU Tasks Trace
Now that RCU Tasks Trace has been re-implemented in terms of SRCU-fast,
the ->trc_ipi_to_cpu, ->trc_blkd_cpu, ->trc_blkd_node, ->trc_holdout_list,
and ->trc_reader_special task_struct fields are no longer used.

In addition, the rcu_tasks_trace_qs(), rcu_tasks_trace_qs_blkd(),
exit_tasks_rcu_finish_trace(), and rcu_spawn_tasks_trace_kthread(),
show_rcu_tasks_trace_gp_kthread(), rcu_tasks_trace_get_gp_data(),
rcu_tasks_trace_torture_stats_print(), and get_rcu_tasks_trace_gp_kthread()
functions and all the other functions that they invoke are no longer used.

Also, the TRC_NEED_QS and TRC_NEED_QS_CHECKED CPP macros are no longer used.
Neither are the rcu_tasks_trace_lazy_ms and rcu_task_ipi_delay rcupdate
module parameters and the TASKS_TRACE_RCU_READ_MB Kconfig option.

This commit therefore removes all of them.

[ paulmck: Apply Alexei Starovoitov feedback. ]

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bpf@vger.kernel.org
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
2026-01-01 16:39:46 +08:00
..
Kconfig rcu: Clean up after the SRCU-fastification of RCU Tasks Trace 2026-01-01 16:39:46 +08:00
Kconfig.debug rcu: Add a small-width RCU watching counter debug option 2025-10-28 17:32:56 +01:00
Makefile
rcu.h rcu: Clean up after the SRCU-fastification of RCU Tasks Trace 2026-01-01 16:39:46 +08:00
rcu_segcblist.c
rcu_segcblist.h
rcuscale.c rcu: Clean up after the SRCU-fastification of RCU Tasks Trace 2026-01-01 16:39:46 +08:00
rcutorture.c rcu: Clean up after the SRCU-fastification of RCU Tasks Trace 2026-01-01 16:39:46 +08:00
refscale.c Merge branch 'rcu/refscale' into next 2025-11-28 23:30:38 +01:00
srcutiny.c srcu: Permit Tiny SRCU srcu_read_unlock() with interrupts disabled 2025-11-05 23:58:11 +01:00
srcutree.c srcu: Create an SRCU-fast-updown API 2025-11-27 14:22:31 +01:00
sync.c
tasks.h rcu: Clean up after the SRCU-fastification of RCU Tasks Trace 2026-01-01 16:39:46 +08:00
tiny.c sched: Provide and use set_need_resched_current() 2025-11-20 22:26:09 +01:00
tree.c RCU pull request for v6.19 2025-12-03 12:18:07 -08:00
tree.h rcu: Fix racy re-initialization of irq_work causing hangs 2025-08-11 08:43:49 +05:30
tree_exp.h sched: Provide and use set_need_resched_current() 2025-11-20 22:26:09 +01:00
tree_nocb.h rcu: Fix delayed execution of hurry callbacks 2025-07-18 09:25:34 +05:30
tree_plugin.h sched: Provide and use set_need_resched_current() 2025-11-20 22:26:09 +01:00
tree_stall.h sched: Provide and use set_need_resched_current() 2025-11-20 22:26:09 +01:00
update.c rcu: Mark diagnostic functions as notrace 2025-11-07 13:57:37 +01:00