[PATCH V11 07/17] riscv: qspinlock: Introduce qspinlock param for command line

[Guo Ren]

On Mon, Sep 11, 2023 at 11:22 PM Waiman Long <longman at redhat.com> wrote:
>
> On 9/10/23 04:29, guoren at kernel.org wrote:
> > From: Guo Ren <guoren at linux.alibaba.com>
> >
> > Allow cmdline to force the kernel to use queued_spinlock when
> > CONFIG_RISCV_COMBO_SPINLOCKS=y.
> >
> > Signed-off-by: Guo Ren <guoren at linux.alibaba.com>
> > Signed-off-by: Guo Ren <guoren at kernel.org>
> > ---
> >   Documentation/admin-guide/kernel-parameters.txt |  2 ++
> >   arch/riscv/kernel/setup.c                       | 16 +++++++++++++++-
> >   2 files changed, 17 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> > index 7dfb540c4f6c..61cacb8dfd0e 100644
> > --- a/Documentation/admin-guide/kernel-parameters.txt
> > +++ b/Documentation/admin-guide/kernel-parameters.txt
> > @@ -4693,6 +4693,8 @@
> >                       [KNL] Number of legacy pty's. Overwrites compiled-in
> >                       default number.
> >
> > +     qspinlock       [RISCV] Force to use qspinlock or auto-detect spinlock.
> > +
> >       qspinlock.numa_spinlock_threshold_ns=   [NUMA, PV_OPS]
> >                       Set the time threshold in nanoseconds for the
> >                       number of intra-node lock hand-offs before the
>
> Your patch series is still based on top of numa-aware qspinlock patchset
> which isn't upstream yet. Please rebase it without that as that will
> cause merge conflict during upstream merge.
Okay, thx for pointing it out.

>
> Cheers,
> Longman
>


-- 
Best Regards
 Guo Ren