[PATCH 2/2] net/mana: properly deal with MR cache expansion failure

[Long Li]

> > On MR cache expension failure, the request should fail as there is no
> > path to get a new MR into the tree. Attempting to insert a new MR to
> > the cache tree will result in memory violation.
> >
> 
> if this patch is fixing memory violation, can you please update commit log as fix
> commit and add fixes tag?

Will send v2.