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[PATCH v4 36/47] x86/pvclock: Mark setup helpers and related various as __init/__ro_after_init
- To: Paolo Bonzini <pbonzini@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, Kiryl Shutsemau <kas@xxxxxxxxxx>, Sean Christopherson <seanjc@xxxxxxxxxx>, "K . Y . Srinivasan" <kys@xxxxxxxxxxxxx>, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Wei Liu <wei.liu@xxxxxxxxxx>, Dexuan Cui <decui@xxxxxxxxxxxxx>, Long Li <longli@xxxxxxxxxxxxx>, Ajay Kaher <ajay.kaher@xxxxxxxxxxxx>, Alexey Makhalov <alexey.makhalov@xxxxxxxxxxxx>, Jan Kiszka <jan.kiszka@xxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>, John Stultz <jstultz@xxxxxxxxxx>
- From: Sean Christopherson <seanjc@xxxxxxxxxx>
- Date: Fri, 29 May 2026 08:08:07 -0700
- Authentication-results: eu.smtp.expurgate.cloud; dkim=pass header.s=20251104 header.d=google.com header.i="@google.com" header.h="Cc:To:From:Subject:Message-ID:References:Mime-Version:In-Reply-To:Date:Reply-To"
- Cc: "H . Peter Anvin" <hpa@xxxxxxxxx>, Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Broadcom internal kernel review list <bcm-kernel-feedback-list@xxxxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stephen Boyd <sboyd@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-coco@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, David Woodhouse <dwmw@xxxxxxxxxxxx>, Tom Lendacky <thomas.lendacky@xxxxxxx>, Nikunj A Dadhania <nikunj@xxxxxxx>, David Woodhouse <dwmw2@xxxxxxxxxxxxx>, Michael Kelley <mhklinux@xxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- Delivery-date: Fri, 29 May 2026 15:08:14 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Now that Xen PV clock and kvmclock explicitly do setup only during init,
tag the common PV clock flags/vsyscall variables and their mutators with
__init.
Reviewed-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kernel/pvclock.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index b3f81379c2fc..a51adce67f92 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -16,10 +16,10 @@
#include <asm/pvclock.h>
#include <asm/vgtod.h>
-static u8 valid_flags __read_mostly = 0;
-static struct pvclock_vsyscall_time_info *pvti_cpu0_va __read_mostly;
+static u8 valid_flags __ro_after_init = 0;
+static struct pvclock_vsyscall_time_info *pvti_cpu0_va __ro_after_init;
-void pvclock_set_flags(u8 flags)
+void __init pvclock_set_flags(u8 flags)
{
valid_flags = flags;
}
@@ -153,7 +153,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock
*wall_clock,
set_normalized_timespec64(ts, now.tv_sec, now.tv_nsec);
}
-void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti)
+void __init pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti)
{
WARN_ON(vclock_was_used(VDSO_CLOCKMODE_PVCLOCK));
pvti_cpu0_va = pvti;
--
2.54.0.823.g6e5bcc1fc9-goog
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