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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 12:56:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 12:56:29 -0700
commit2227e5b21aec6c5f7f6491352f0c19fd02d19418 (patch)
tree098e17fe2c1ec5fc753c9ae7983d2f8466914c0e /init
parent0bd957eb11cfeef23fcc240edde6dfe431731e69 (diff)
parentcb3cb6733fbd8fd8d2c716095fdca42dadba2063 (diff)
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Merge tag 'core-rcu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar: "The RCU updates for this cycle were: - RCU-tasks update, including addition of RCU Tasks Trace for BPF use and TASKS_RUDE_RCU - kfree_rcu() updates. - Remove scheduler locking restriction - RCU CPU stall warning updates. - Torture-test updates. - Miscellaneous fixes and other updates" * tag 'core-rcu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (103 commits) rcu: Allow for smp_call_function() running callbacks from idle rcu: Provide rcu_irq_exit_check_preempt() rcu: Abstract out rcu_irq_enter_check_tick() from rcu_nmi_enter() rcu: Provide __rcu_is_watching() rcu: Provide rcu_irq_exit_preempt() rcu: Make RCU IRQ enter/exit functions rely on in_nmi() rcu/tree: Mark the idle relevant functions noinstr x86: Replace ist_enter() with nmi_enter() x86/mce: Send #MC singal from task work x86/entry: Get rid of ist_begin/end_non_atomic() sched,rcu,tracing: Avoid tracing before in_nmi() is correct sh/ftrace: Move arch_ftrace_nmi_{enter,exit} into nmi exception lockdep: Always inline lockdep_{off,on}() hardirq/nmi: Allow nested nmi_enter() arm64: Prepare arch_nmi_enter() for recursion printk: Disallow instrumenting print_nmi_enter() printk: Prepare for nested printk_nmi_enter() rcutorture: Convert ULONG_CMP_LT() to time_before() torture: Add a --kasan argument torture: Save a few lines by using config_override_param initially ...
Diffstat (limited to 'init')
-rw-r--r--init/init_task.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/init/init_task.c b/init/init_task.c
index bd403ed3e418..825972daec32 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -141,6 +141,11 @@ struct task_struct init_task
.rcu_tasks_holdout_list = LIST_HEAD_INIT(init_task.rcu_tasks_holdout_list),
.rcu_tasks_idle_cpu = -1,
#endif
+#ifdef CONFIG_TASKS_TRACE_RCU
+ .trc_reader_nesting = 0,
+ .trc_reader_special.s = 0,
+ .trc_holdout_list = LIST_HEAD_INIT(init_task.trc_holdout_list),
+#endif
#ifdef CONFIG_CPUSETS
.mems_allowed_seq = SEQCNT_ZERO(init_task.mems_allowed_seq),
#endif