Re: [PATCH 3/4] mm/vmap: get rid of one single unlink_va() when merge

[Andrew Morton]

On Wed, 22 May 2019 17:09:38 +0200 "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx> wrote:

> It does not make sense to try to "unlink" the node that is
> definitely not linked with a list nor tree. On the first
> merge step VA just points to the previously disconnected
> busy area.
> 
> On the second step, check if the node has been merged and do
> "unlink" if so, because now it points to an object that must
> be linked.

Again, what is the motivation for this change?  Seems to be a bit of a
code/logic cleanup, no significant runtime effect?