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SubjectRe: [PATCH] nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net
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On Sun, 2023-06-18 at 15:59 +0000, Chuck Lever III wrote:
>
> > On Jun 18, 2023, at 8:09 AM, Jeff Layton <jlayton@kernel.org> wrote:
> >
> > On Sun, 2023-06-18 at 12:40 +0200, Thorsten Leemhuis wrote:
> > > On 16.06.23 22:54, Jeff Layton wrote:
> > > > On Fri, 2023-06-16 at 16:27 -0400, Chuck Lever wrote:
> > > > > Thanks Eirik and Jeff.
> > > > >
> > > > > At this point in the release cycle, I plan to apply this for the
> > > > > next merge window (6.5).
> > > >
> > > > I think we should take this in sooner. This is a regression and a
> > > > user-triggerable oops in the right situation. If:
> > > >
> > > > - non-x86_64 arch
> > > > - /proc/fs/nfsd is mounted in the namespace
> > > > - nfsd is not started in the namespace
> > > > - unprivileged user calls "cat /proc/fs/nfsd/reply_cache_stats"
> > >
> > > FWIW, might be worth to simply tell Linus about it and let him decide,
> > > that's totally fine and even documented in the old and the new docs for
> > > handling regressions[1].
> > >
> > > [1]
> > > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/Documentation/process/handling-regressions.rst?id=eed892da9cd08be76a8f467c600ef58716dbb4d2
> > >
> >
> > I'd rather Chuck make the final call here.
>
> Thanks! I feel this one needs broader testing than we can manage
> in just a couple of days. If this were earlier in the -rc cycle
> I would pull the patch right into 6.4-rc without hesitation. It
> is obviously -rc material, but the timing is unfortunate.
>
> I'm planning the nfsd for-6.5 pull request early in the merge
> window, so practically speaking it shouldn't delay the finalized
> upstream version of this patch by more than a few days.
>
>
Ok. I'll trust your judgment then and just cultivate my patience!

Cheers,
--
Jeff Layton <jlayton@kernel.org>

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