rcu: Add comment documenting how rcu_seq_snap works

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rcu_seq_snap may be tricky to decipher. Lets document how it works with
an example to make it easier.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Shrink comment as suggested by Peter Zijlstra. ]

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Joel Fernandes (Google) 2018-05-22 23:38:13 -07:00 • committed by Paul E. McKenney

parent b06ae25a1e

commit 0d805a70a6

1 changed files with 11 additions and 1 deletions

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kernel/rcu/rcu.h

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