From 61a492fb1759f3e892ad0408e36d3575c5f890d0 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Tue, 23 Sep 2014 10:50:56 -0700 Subject: [PATCH] x86_64/vdso: Remove jiffies from the vvar page I think that the jiffies vvar was once used for the vgetcpu cache. That code is long gone, so let's just make jiffies be a normal variable. Signed-off-by: Andy Lutomirski Link: http://lkml.kernel.org/r/fcfee6f8749af14d96373a9e2656354ad0b95499.1411494540.git.luto@amacapital.net Signed-off-by: Ingo Molnar --- arch/x86/include/asm/vvar.h | 1 - arch/x86/kernel/time.c | 2 +- arch/x86/vdso/vgetcpu.c | 1 - 3 files changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h index 5d2b9ad2c6d2..5f6d40734a3b 100644 --- a/arch/x86/include/asm/vvar.h +++ b/arch/x86/include/asm/vvar.h @@ -44,7 +44,6 @@ extern char __vvar_page; /* DECLARE_VVAR(offset, type, name) */ -DECLARE_VVAR(0, volatile unsigned long, jiffies) DECLARE_VVAR(16, int, vgetcpu_mode) DECLARE_VVAR(128, struct vsyscall_gtod_data, vsyscall_gtod_data) diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c index 0fa29609b2c4..25adc0e16eaa 100644 --- a/arch/x86/kernel/time.c +++ b/arch/x86/kernel/time.c @@ -23,7 +23,7 @@ #include #ifdef CONFIG_X86_64 -__visible DEFINE_VVAR(volatile unsigned long, jiffies) = INITIAL_JIFFIES; +__visible volatile unsigned long jiffies __cacheline_aligned = INITIAL_JIFFIES; #endif unsigned long profile_pc(struct pt_regs *regs) diff --git a/arch/x86/vdso/vgetcpu.c b/arch/x86/vdso/vgetcpu.c index 2f94b039e55b..add1d98d2477 100644 --- a/arch/x86/vdso/vgetcpu.c +++ b/arch/x86/vdso/vgetcpu.c @@ -7,7 +7,6 @@ #include #include -#include #include #include #include -- 2.39.2