* [PATCH v1] arm64: defconfig: Enable CONFIG_EXPERT
@ 2024-09-26 14:58 Anand Moon
2024-09-26 17:04 ` Catalin Marinas
0 siblings, 1 reply; 3+ messages in thread
From: Anand Moon @ 2024-09-26 14:58 UTC (permalink / raw)
To: Catalin Marinas, Will Deacon
Cc: Anand Moon, Sebastian Andrzej Siewior, linux-arm-kernel,
linux-kernel
Enable CONFIG_EXPERT to allow the configuration of PREEMPT_RT.
PREEMPT_RT depends on the following configuration:
CONFIG_PREEMPT_RT
bool “Fully Preemptible Kernel (Real-Time)”
depends on CONFIG_EXPERT && ARCH_SUPPORTS_RT
select PREEMPTION
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
arch/arm64/configs/defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 5fdbfea7a5b2..3d9d29eb0c13 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -28,6 +28,7 @@ CONFIG_CGROUP_BPF=y
CONFIG_USER_NS=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
CONFIG_KEXEC=y
base-commit: 11a299a7933e03c83818b431e6a1c53ad387423d
--
2.44.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1] arm64: defconfig: Enable CONFIG_EXPERT
2024-09-26 14:58 [PATCH v1] arm64: defconfig: Enable CONFIG_EXPERT Anand Moon
@ 2024-09-26 17:04 ` Catalin Marinas
2024-09-27 3:40 ` Anand Moon
0 siblings, 1 reply; 3+ messages in thread
From: Catalin Marinas @ 2024-09-26 17:04 UTC (permalink / raw)
To: Anand Moon
Cc: Will Deacon, Sebastian Andrzej Siewior, linux-arm-kernel,
linux-kernel
On Thu, Sep 26, 2024 at 08:28:16PM +0530, Anand Moon wrote:
> Enable CONFIG_EXPERT to allow the configuration of PREEMPT_RT.
>
> PREEMPT_RT depends on the following configuration:
>
> CONFIG_PREEMPT_RT
> bool “Fully Preemptible Kernel (Real-Time)”
> depends on CONFIG_EXPERT && ARCH_SUPPORTS_RT
> select PREEMPTION
>
> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Signed-off-by: Anand Moon <linux.amoon@gmail.com>
> ---
> arch/arm64/configs/defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 5fdbfea7a5b2..3d9d29eb0c13 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -28,6 +28,7 @@ CONFIG_CGROUP_BPF=y
> CONFIG_USER_NS=y
> CONFIG_SCHED_AUTOGROUP=y
> CONFIG_BLK_DEV_INITRD=y
> +CONFIG_EXPERT=y
> CONFIG_KALLSYMS_ALL=y
> CONFIG_PROFILING=y
> CONFIG_KEXEC=y
EXPERT is not really for defconfig (at least not for the arm64 one).
Distros can (and do) enable it if they want. Also PREEMPT_RT is default
off, so you'd have to enable it in your config anyway, not sure what
this patch helps with.
--
Catalin
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] arm64: defconfig: Enable CONFIG_EXPERT
2024-09-26 17:04 ` Catalin Marinas
@ 2024-09-27 3:40 ` Anand Moon
0 siblings, 0 replies; 3+ messages in thread
From: Anand Moon @ 2024-09-27 3:40 UTC (permalink / raw)
To: Catalin Marinas
Cc: Will Deacon, Sebastian Andrzej Siewior, linux-arm-kernel,
linux-kernel
Hi Catalin,
On Thu, 26 Sept 2024 at 22:34, Catalin Marinas <catalin.marinas@arm.com> wrote:
>
> On Thu, Sep 26, 2024 at 08:28:16PM +0530, Anand Moon wrote:
> > Enable CONFIG_EXPERT to allow the configuration of PREEMPT_RT.
> >
> > PREEMPT_RT depends on the following configuration:
> >
> > CONFIG_PREEMPT_RT
> > bool “Fully Preemptible Kernel (Real-Time)”
> > depends on CONFIG_EXPERT && ARCH_SUPPORTS_RT
> > select PREEMPTION
> >
> > Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> > Signed-off-by: Anand Moon <linux.amoon@gmail.com>
> > ---
> > arch/arm64/configs/defconfig | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> > index 5fdbfea7a5b2..3d9d29eb0c13 100644
> > --- a/arch/arm64/configs/defconfig
> > +++ b/arch/arm64/configs/defconfig
> > @@ -28,6 +28,7 @@ CONFIG_CGROUP_BPF=y
> > CONFIG_USER_NS=y
> > CONFIG_SCHED_AUTOGROUP=y
> > CONFIG_BLK_DEV_INITRD=y
> > +CONFIG_EXPERT=y
> > CONFIG_KALLSYMS_ALL=y
> > CONFIG_PROFILING=y
> > CONFIG_KEXEC=y
>
> EXPERT is not really for defconfig (at least not for the arm64 one).
> Distros can (and do) enable it if they want. Also PREEMPT_RT is default
> off, so you'd have to enable it in your config anyway, not sure what
> this patch helps with.
>
Ok, I will enable this in my distro config.
> --
> Catalin
Thanks
-Anand
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2024-09-26 14:58 [PATCH v1] arm64: defconfig: Enable CONFIG_EXPERT Anand Moon
2024-09-26 17:04 ` Catalin Marinas
2024-09-27 3:40 ` Anand Moon
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