Re: [RESEND PATCH v7 7/8] kernfs: Replace per-fs rwsem with hashed rwsems.

[Tejun Heo]

On Mon, Mar 21, 2022 at 07:29:45AM +0000, Al Viro wrote:
...
> stabilizing the tree topology.  Turn it into rwlock if you wish,
> with that thing being a reader and existing users - writers.
> And don't bother with further scaling, until and unless you see a real
> contention on it.

Given how rare these renames are, in the (unlikely) case the rename rwsem
becomes a problem, we should probably just switch it to a percpu_rwsem.

Thanks.

-- 
tejun