[PATCH V11 07/17] riscv: qspinlock: Introduce qspinlock param for command line
Waiman Long
longman at redhat.com
Mon Sep 11 08:22:16 PDT 2023
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.
Cheers,
Longman
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