Re: [PATCH 0/2 RFT] nfsd: fix another problem with recent localio changes

[Mike Snitzer <snitzer@kernel.org>]

On Fri, Jul 18, 2025 at 10:27:03AM -0400, Mike Snitzer wrote:
> On Fri, Jul 18, 2025 at 10:25:26AM -0400, Chuck Lever wrote:
> > From: Chuck Lever <chuck.lever@oracle.com>
> > 
> > On Fri, 18 Jul 2025 11:26:13 +1000, NeilBrown wrote:
> > > Mike reports ongoing problem with leakage of refcounts for the net in
> > > nfsd when localio is used.  I believe the first patch fixes one possible
> > > cause.  The second patch removes some related dead code.
> > > 
> > > Mike: thanks for your testing so far.  Hopefully you could find time to
> > > test this one too?
> > > 
> > > [...]
> > 
> > Applied to nfsd-testing, thanks!
> > 
> > I assume 1/2 should be expedited? If so, I can add a Cc: stable and
> > get it into v6.17-rc.
> 
> Yes, it should be expedited.

BTW, Neil's LOCALIO changes that were merged during 6.16 merge window
have dependencies on his generic wait_on_var advances.  So all these
LOCALIO 6.16 changes won't have an easy time of getting back to 6.12
stable@ for example.

But given the Fixes: in the LOCALIO changes that were merged to 6.16
I'd imagine 6.14 stable@ _could_ pick them up... so explicitly tagging
this fix with "Cc: stable" likely makes sense.  But had they picked up
the 6.16 patches for 6.14 stable@ then they should know to pick up
this fix anyway (as side-effect of Neil's Fixes: tag).

Chuck, pretty certain you know all this.. I'm just sharing what I know
for others' benefit.