From 68ed0040a8c9d06b73cda322a1f740749bd6e41a Mon Sep 17 00:00:00 2001 From: Ravikiran G Thirumalai Date: Wed, 22 Mar 2006 00:07:38 -0800 Subject: [PATCH] [PATCH] x86: mark cyc2ns_scale readmostly This variable is rarely written to. Mark the variable accordingly. Signed-off-by: Ravikiran Thirumalai Signed-off-by: Shai Fultheim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/timers/timer_hpet.c | 2 +- arch/i386/kernel/timers/timer_tsc.c | 2 +- arch/x86_64/kernel/time.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c index be242723c3..17a6fe7166 100644 --- a/arch/i386/kernel/timers/timer_hpet.c +++ b/arch/i386/kernel/timers/timer_hpet.c @@ -46,7 +46,7 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; * * -johnstul@us.ibm.com "math is hard, lets go shopping!" */ -static unsigned long cyc2ns_scale; +static unsigned long cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ static inline void set_cyc2ns_scale(unsigned long cpu_khz) diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c index a7f5a2aceb..5e41ee29c8 100644 --- a/arch/i386/kernel/timers/timer_tsc.c +++ b/arch/i386/kernel/timers/timer_tsc.c @@ -74,7 +74,7 @@ late_initcall(start_lost_tick_compensation); * * -johnstul@us.ibm.com "math is hard, lets go shopping!" */ -static unsigned long cyc2ns_scale; +static unsigned long cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ static inline void set_cyc2ns_scale(unsigned long cpu_khz) diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 3080f84bf7..ee5ce3d3cb 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -477,7 +477,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) return IRQ_HANDLED; } -static unsigned int cyc2ns_scale; +static unsigned int cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ static inline void set_cyc2ns_scale(unsigned long cpu_khz) -- 2.39.5