Re: Freeing page tables through RCU
From: Jason Gunthorpe
Date: Fri Feb 26 2021 - 09:43:03 EST
On Thu, Feb 25, 2021 at 08:58:20PM +0000, Matthew Wilcox wrote:
> I'd like to hear better ideas than this.
You didn't like my suggestion to put a sleepable lock around the
freeing of page tables during flushing?
I still don't see how you convert the sleepable page walkers to use
rcu??
Jason