linux-kernel - [PATCH v14 05/25] x86/kvmclock: Mark variables __initdata and __ro_after

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Date:   Tue, 17 Jul 2018 22:21:51 -0400
From:   Pavel Tatashin <pasha.tatashin@...cle.com>
To:     steven.sistare@...cle.com, daniel.m.jordan@...cle.com,
        linux@...linux.org.uk, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, john.stultz@...aro.org,
        sboyd@...eaurora.org, x86@...nel.org, linux-kernel@...r.kernel.org,
        mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
        douly.fnst@...fujitsu.com, peterz@...radead.org, prarit@...hat.com,
        feng.tang@...el.com, pmladek@...e.com, gnomes@...rguk.ukuu.org.uk,
        linux-s390@...r.kernel.org, pasha.tatashin@...cle.com,
        boris.ostrovsky@...cle.com, jgross@...e.com, pbonzini@...hat.com
Subject: [PATCH v14 05/25] x86/kvmclock: Mark variables __initdata and __ro_after_init

From: Thomas Gleixner <tglx@...utronix.de>

The kvmclock parameter is init data and the other variables are not
modified after init.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Pavel Tatashin <pasha.tatashin@...cle.com>
Acked-by: Paolo Bonzini <pbonzini@...hat.com>
---
 arch/x86/kernel/kvmclock.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 04d2f5e1d783..f312d7f6de57 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -32,10 +32,10 @@
 #include <asm/reboot.h>
 #include <asm/kvmclock.h>
 
-static int kvmclock __ro_after_init = 1;
-static int msr_kvm_system_time = MSR_KVM_SYSTEM_TIME;
-static int msr_kvm_wall_clock = MSR_KVM_WALL_CLOCK;
-static u64 kvm_sched_clock_offset;
+static int kvmclock __initdata = 1;
+static int msr_kvm_system_time __ro_after_init = MSR_KVM_SYSTEM_TIME;
+static int msr_kvm_wall_clock __ro_after_init = MSR_KVM_WALL_CLOCK;
+static u64 kvm_sched_clock_offset __ro_after_init;
 
 static int __init parse_no_kvmclock(char *arg)
 {
@@ -50,7 +50,7 @@ early_param("no-kvmclock", parse_no_kvmclock);
 static u8 hv_clock_mem[PAGE_ALIGN(HV_CLOCK_SIZE)] __aligned(PAGE_SIZE);
 
 /* The hypervisor will put information about time periodically here */
-static struct pvclock_vsyscall_time_info *hv_clock;
+static struct pvclock_vsyscall_time_info *hv_clock __ro_after_init;
 static struct pvclock_wall_clock wall_clock;
 
 /*
-- 
2.18.0