On Sun, Apr 04, 2021 at 11:58:43PM +0200, Frederic Weisbecker wrote:
> The 3 diagrams describing rcu_gp_init() all spuriously refer to the same
> figure, probably due to some copy/paste issue. Fix the references.
>
> Signed-off-by: Frederic Weisbecker
Good catch, queued, thank you!
Thanx, Paul
> ---
> .../RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git
> a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
> b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
> index 3f6ce41ee0c5..11cdab037bff 100644
> --- a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
> +++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
> @@ -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,
> --
> 2.25.1
>
