20.11.7 patches review and test

[Morten Brørup]

> From: Morten Brørup [mailto:mb at smartsharesystems.com]
> Sent: Monday, 28 November 2022 13.08
> 
> > From: Luca Boccassi [mailto:luca.boccassi at gmail.com]
> > Sent: Monday, 28 November 2022 12.55
> >
> > On Mon, 28 Nov 2022 at 11:35, Morten Brørup <mb at smartsharesystems.com>
> > wrote:
> > >
> > > +CC Andrew Rybchenko as co-signer on the mempool patch in mainline.
> > >
> > > > From: luca.boccassi at gmail.com [mailto:luca.boccassi at gmail.com]
> > > > Sent: Monday, 28 November 2022 11.53
> 
> [...]
> 
> > > >       mempool: fix get objects from mempool with cache
> > >
> > > Reviewed stable release patch [1], comparing it to the accepted
> > mainline patch [2].
> > >
> > > [1]: https://git.dpdk.org/dpdk-
> > stable/commit/?h=20.11&id=26cb4c81b552594292f7c744afb904f01700dfe8
> > > [2]:
> > https://patchwork.dpdk.org/project/dpdk/patch/20221007104450.2567961-1-
> > andrew.rybchenko at oktetlabs.ru/
> > >
> > > This is not correct:
> > > +               __MEMPOOL_STAT_ADD(mp, get_success_bulk, 1);
> > > +               __MEMPOOL_STAT_ADD(mp, get_success_objs, n);
> > >
> > > The old macro did more, so it should be:
> > > +               __MEMPOOL_STAT_ADD(mp, get_success, n);
> > >
> > > This is only visible if built with RTE_LIBRTE_MEMPOOL_DEBUG.
> > >
> > > Besides that, it looks perfectly good to me.
> >
> > Can you test a patch and send it?
> 
> Extremely busy these days... Not sure I can make it within the deadline.
> 
> Alternatively, consider omitting the patch. It only fixes some performance
> issues for certain use cases.

Now the omitted patch shows up as [Bug 1212], so I will try to provide a v2 patch, continuing the work you already put into the v1 patch.

[Bug 1212]: https://bugs.dpdk.org/show_bug.cgi?id=1212

However, I'm not good at git, so could you please provide a step-by-step guide for contributing such a patch to the 20.11 stable branch?

1. git clone git://dpdk.org/(FIXME: Which URL?)
2. (Edit and test the code.)
3. git add lib/mempool/rte_mempool.h
4. git commit (FIXME: Which additional parameters here?) -m "mempool: fix get objects from mempool with cache" -m "Edit description in editor." --signoff --edit (FIXME: And which special lines to add in the patch description?)
5. git format-patch -1 -v 2 (FIXME: Which additional parameters here?)
6. git send-email (FIXME: Which additional parameters here?) -to stable at dpdk.org v2-000*.patch