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From: Pavel Tatashin <pasha.tatashin@oracle.com>
To: steven.sistare@oracle.com, daniel.m.jordan@oracle.com,
	linux@armlinux.org.uk, schwidefsky@de.ibm.com,
	heiko.carstens@de.ibm.com, john.stultz@linaro.org,
	sboyd@codeaurora.org, x86@kernel.org,
	linux-kernel@vger.kernel.org, mingo@redhat.com,
	tglx@linutronix.de, hpa@zytor.com, douly.fnst@cn.fujitsu.com,
	peterz@infradead.org, prarit@redhat.com, feng.tang@intel.com,
	pmladek@suse.com, gnomes@lxorguk.ukuu.org.uk,
	linux-s390@vger.kernel.org, pasha.tatashin@oracle.com,
	boris.ostrovsky@oracle.com, jgross@suse.com, pbonzini@redhat.com
Subject: [PATCH v14 05/25] x86/kvmclock: Mark variables __initdata and __ro_after_init
Date: Tue, 17 Jul 2018 22:21:51 -0400	[thread overview]
Message-ID: <20180718022211.6259-6-pasha.tatashin@oracle.com> (raw)
In-Reply-To: <20180718022211.6259-1-pasha.tatashin@oracle.com>

From: Thomas Gleixner <tglx@linutronix.de>

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

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.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


  parent reply	other threads:[~2018-07-18  2:24 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-18  2:21 [PATCH v14 00/25] Early boot time stamps Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 01/25] x86/kvmclock: Remove memblock dependency Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 02/25] x86/kvmclock: Remove page size requirement from wall_clock Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 03/25] x86/kvmclock: Decrapify kvm_register_clock() Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 04/25] x86/kvmclock: Cleanup the code Pavel Tatashin
2018-07-18  2:21 ` Pavel Tatashin [this message]
2018-07-18  2:21 ` [PATCH v14 06/25] x86/kvmclock: Move kvmclock vsyscall param and init to kvmclock Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 07/25] x86/kvmclock: Switch kvmclock data to a PER_CPU variable Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 08/25] x86/kvmclock: Avoid TSC recalibration Pavel Tatashin
2018-07-18 11:14   ` Paolo Bonzini
2018-07-18 13:33     ` Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 09/25] x86: text_poke() may access uninitialized struct pages Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 10/25] x86: initialize static branching early Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 11/25] x86/CPU: Call detect_nopl() only on the BSP Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 12/25] x86/tsc: redefine notsc to behave as tsc=unstable Pavel Tatashin
2018-07-18  2:21 ` [PATCH v14 13/25] x86/xen/time: initialize pv xen time in init_hypervisor_platform Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 14/25] x86/xen/time: output xen sched_clock time from 0 Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 15/25] s390/time: add read_persistent_wall_and_boot_offset() Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 16/25] time: replace read_boot_clock64() with read_persistent_wall_and_boot_offset() Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 17/25] time: default boot time offset to local_clock() Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 18/25] s390/time: remove read_boot_clock64() Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 19/25] ARM/time: " Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 20/25] x86/tsc: calibrate tsc only once Pavel Tatashin
2018-07-19  5:33   ` Dou Liyang
2018-07-19  6:25     ` Thomas Gleixner
2018-07-19  6:48       ` Dou Liyang
2018-07-19 10:33   ` Peter Zijlstra
2018-07-19 11:01     ` Thomas Gleixner
2018-07-19 15:58       ` Pavel Tatashin
2018-07-19 16:19         ` Thomas Gleixner
2018-07-19 16:49           ` Pavel Tatashin
2018-07-19 18:38             ` Pavel Tatashin
2018-07-19 20:44               ` Thomas Gleixner
2018-07-19 20:46                 ` Pavel Tatashin
2018-07-23  9:28                   ` Alan Cox
2018-07-18  2:22 ` [PATCH v14 21/25] x86/tsc: initialize cyc2ns when tsc freq. is determined Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 22/25] x86/tsc: use tsc early Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 23/25] sched: move sched clock initialization and merge with generic clock Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 24/25] sched: early boot clock Pavel Tatashin
2018-07-19 10:39   ` Peter Zijlstra
2018-07-19 14:16     ` Pavel Tatashin
2018-07-18  2:22 ` [PATCH v14 25/25] sched: use static key for sched_clock_running Pavel Tatashin
2018-07-19 10:48   ` Peter Zijlstra
2018-07-19 14:24     ` Pavel Tatashin

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