| From | John Ogness <> | Subject | Re: [PATCH RFC v2 rcu 2/8] srcu: Create an srcu_read_lock_nmisafe() and srcu_read_unlock_nmisafe() | Date | Tue, 18 Oct 2022 16:37:01 +0206 |
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Hi Paul,
Sorry for the late response here. I am now trying to actually use this series.
On 2022-09-29, "Paul E. McKenney" <paulmck@kernel.org> wrote: > diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig > index d471d22a5e21..f53ad63b2bc6 100644 > --- a/kernel/rcu/Kconfig > +++ b/kernel/rcu/Kconfig > @@ -72,6 +72,9 @@ config TREE_SRCU > help > This option selects the full-fledged version of SRCU. >
You are missing a:
+config ARCH_HAS_NMI_SAFE_THIS_CPU_OPS + bool +
Otherwise there is no CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS, so for example CONFIG_NEED_SRCU_NMI_SAFE always ends up with y on X86.
> +config NEED_SRCU_NMI_SAFE > + def_bool HAVE_NMI && !ARCH_HAS_NMI_SAFE_THIS_CPU_OPS && !TINY_SRCU > +
John
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