Re: [PATCH RFC 0/4] memory: Fix (/ Discuss) a few rcu issues

[Peter Xu]

On Thu, Mar 02, 2023 at 04:11:56PM +0100, David Hildenbrand wrote:
> I guess the main concern here would be overhead from gabbing/releasing the
> BQL very often, and blocking the BQL while we're eventually in the kernel,
> clearing bitmaps, correct?

More or less yes.  I think it's pretty clear we move on with RCU unless
extremely necessary (which I don't think..), then it's about how to fix the
bug so rcu safety guaranteed.

-- 
Peter Xu