Re: [PATCH REPOST] rbtree: include rcu.h because we use it

[Andrew Morton]

On Fri,  4 May 2018 12:31:59 +0200 Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote:

> Since commit c1adf20052d8 ("Introduce rb_replace_node_rcu()")
> rbtree_augmented.h uses RCU related data structures but does not include
> them. It works as long as gets somehow included before that and fails
> otherwise.

c1adf20052d8 was two years ago.  Are there any actual real build errors
arising from this?  If so, backporting the patch might be needed?