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Zhouyi Zhou 7d81aff289 rcu: Remove spurious instrumentation_end() in rcu_nmi_enter() 
[ Upstream commit 6494ccb932 ]

In rcu_nmi_enter(), there is an erroneous instrumentation_end() in the
second branch of the "if" statement.  Oddly enough, "objtool check -f
vmlinux.o" fails to complain because it is unable to correctly cover
all cases.  Instead, objtool visits the third branch first, which marks
following trace_rcu_dyntick() as visited.  This commit therefore removes
the spurious instrumentation_end().

Fixes: 04b25a495b ("rcu: Mark rcu_nmi_enter() call to rcu_cleanup_after_idle() noinstr")
Reported-by Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14 09:50:22 +02:00
..
Kconfig
rcu: Reduce leaf fanout for strict RCU grace periods
2020-08-24 18:40:23 -07:00
Kconfig.debug
Merge branch 'strictgp.2020.08.24a' into HEAD
2020-09-03 09:47:42 -07:00
Makefile
rcuperf: Change rcuperf to rcuscale
2020-08-24 18:39:24 -07:00
rcu_segcblist.c
rcu/segcblist: Prevent useless GP start if no CBs to accelerate
2020-09-03 09:39:59 -07:00
rcu_segcblist.h
rcu: Remove kfree_rcu() special casing and lazy-callback handling
2020-01-24 10:24:31 -08:00
rcu.h
treewide: Make all debug_obj_descriptors const
2020-09-24 21:56:25 +02:00
rcuscale.c
rcuperf: Change rcuperf to rcuscale
2020-08-24 18:39:24 -07:00
rcutorture.c
rcutorture: Allow pointer leaks to test diagnostic code
2020-08-24 18:45:36 -07:00
refscale.c
refperf: Avoid null pointer dereference when buf fails to allocate
2020-08-24 18:45:35 -07:00
srcutiny.c
rcu: Use CONFIG_PREEMPTION where appropriate
2019-12-09 12:37:51 -08:00
srcutree.c
srcu: Remove KCSAN stubs
2020-08-24 18:36:03 -07:00
sync.c
rcu/sync: Simplify the state machine
2019-05-28 09:05:23 -07:00
tasks.h
rcu-tasks: Move RCU-tasks initialization to before early_initcall()
2021-01-19 18:27:28 +01:00
tiny.c
rcu: Rename *_kfree_callback/*_kfree_rcu_offset/kfree_call_*
2020-06-29 11:59:25 -07:00
tree_exp.h
rcu: Initialize at declaration time in rcu_exp_handler()
2020-08-24 18:36:03 -07:00
tree_plugin.h
rcu/nocb: Perform deferred wake up before last idle's need_resched() check
2021-03-04 11:38:35 +01:00
tree_stall.h
rcu: Don't invoke try_invoke_on_locked_down_task() with irqs disabled
2020-11-10 17:10:38 -08:00
tree.c
rcu: Remove spurious instrumentation_end() in rcu_nmi_enter()
2021-05-14 09:50:22 +02:00
tree.h
Merge branch 'strictgp.2020.08.24a' into HEAD
2020-09-03 09:47:42 -07:00
update.c
Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-18 14:34:50 -07:00