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doc: Fix diagram references in memory-ordering document 

The three diagrams describing rcu_gp_init() all spuriously refer to
the same figure, probably due to a copy/paste issue.  This commit fixes
these references.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Frederic Weisbecker 2021-04-04 23:58:43 +02:00 committed by Paul E. McKenney
parent 18389c4570
commit 58d0db869d
1 changed files with 2 additions and 2 deletions
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4
Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
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@ -339,14 +339,14 @@ The diagram below shows the path of ordering if the leftmost
leftmost ``rcu_node`` structure offlines its last CPU and if the next
``rcu_node`` structure has no online CPUs).
.. kernel-figure:: TreeRCU-gp-init-1.svg
.. kernel-figure:: TreeRCU-gp-init-2.svg
The final ``rcu_gp_init()`` pass through the ``rcu_node`` tree traverses
breadth-first, setting each ``rcu_node`` structure's ``->gp_seq`` field
to the newly advanced value from the ``rcu_state`` structure, as shown
in the following diagram.
.. kernel-figure:: TreeRCU-gp-init-1.svg
.. kernel-figure:: TreeRCU-gp-init-3.svg
This change will also cause each CPU's next call to
``__note_gp_changes()`` to notice that a new grace period has started,