rcu: Add comments marking transitions between RCU watching and not

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It is not as clear as it might be just where in RCU's idle entry/exit
code RCU stops and starts watching the current CPU.  This commit therefore
adds comments calling out the transitions.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2020-03-12 17:01:57 -07:00

parent 52b1fc3f79

commit ac3caf8274

1 changed files with 25 additions and 4 deletions

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29

kernel/rcu/tree.c

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