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authorRavikiran G Thirumalai <kiran@scalex86.org>2006-03-22 00:07:38 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 07:53:55 -0800
commit68ed0040a8c9d06b73cda322a1f740749bd6e41a (patch)
tree73fe9f14b93466716b4a79007a33839ee42aad33 /arch
parent5e7a99ac452d7a4ce43b8bacb3495475e1f9fd71 (diff)
[PATCH] x86: mark cyc2ns_scale readmostly
This variable is rarely written to. Mark the variable accordingly. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/timers/timer_hpet.c2
-rw-r--r--arch/i386/kernel/timers/timer_tsc.c2
-rw-r--r--arch/x86_64/kernel/time.c2
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 be242723c33..17a6fe7166e 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 a7f5a2aceba..5e41ee29c8c 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 3080f84bf7b..ee5ce3d3cbc 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)