OrangePi_CM5/kernel/rcu
Zqiang 0dd025483f rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE()
[ Upstream commit fcd53c8a4dfa38bafb89efdd0b0f718f3a03f884 ]

Kernels built with CONFIG_PROVE_RCU=y and CONFIG_DEBUG_LOCK_ALLOC=y
attempt to emit a warning when the synchronize_rcu_tasks_generic()
function is called during early boot while the rcu_scheduler_active
variable is RCU_SCHEDULER_INACTIVE.  However the warnings is not
actually be printed because the debug_lockdep_rcu_enabled() returns
false, exactly because the rcu_scheduler_active variable is still equal
to RCU_SCHEDULER_INACTIVE.

This commit therefore replaces RCU_LOCKDEP_WARN() with WARN_ONCE()
to force these warnings to actually be printed.

Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:25:44 +02:00
..
Kconfig rcu: Make TASKS_RUDE_RCU select IRQ_WORK 2022-06-09 10:20:51 +02:00
Kconfig.debug
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Makefile
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rcu.h srcu: Fix broken node geometry after early ssp init 2021-07-20 16:05:38 +02:00
rcu_segcblist.c
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rcu_segcblist.h
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rcuscale.c
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rcutorture.c rcutorture: Avoid problematic critical section nesting on PREEMPT_RT 2021-11-18 14:03:52 +01:00
refscale.c
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srcutiny.c srcu: Provide polling interfaces for Tiny SRCU grace periods 2021-09-03 10:09:30 +02:00
srcutree.c srcu: Provide polling interfaces for Tree SRCU grace periods 2021-09-03 10:09:29 +02:00
sync.c
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tasks.h rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE() 2022-10-26 13:25:44 +02:00
tiny.c
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tree.c rcu: Back off upon fill_page_cache_func() allocation failure 2022-10-26 13:25:44 +02:00
tree.h
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tree_exp.h rcu/exp: Mark current CPU as exp-QS in IPI loop second pass 2022-01-27 10:53:55 +01:00
tree_plugin.h rcu: Don't deboost before reporting expedited quiescent state 2022-03-28 09:57:10 +02:00
tree_stall.h rcu: Fix stall-warning deadlock due to non-release of rcu_node ->lock 2021-09-15 09:50:28 +02:00
update.c rcu: Reject RCU_LOCKDEP_WARN() false positives 2021-07-20 16:05:38 +02:00