diff options
| author | Ravikiran G Thirumalai <kiran@scalex86.org> | 2006-03-22 03:07:38 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 10:53:55 -0500 |
| commit | 68ed0040a8c9d06b73cda322a1f740749bd6e41a (patch) | |
| tree | 73fe9f14b93466716b4a79007a33839ee42aad33 /arch | |
| parent | 5e7a99ac452d7a4ce43b8bacb3495475e1f9fd71 (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.c | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/timers/timer_tsc.c | 2 | ||||
| -rw-r--r-- | 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 be242723c339..17a6fe7166e7 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; | |||
| 46 | * | 46 | * |
| 47 | * -johnstul@us.ibm.com "math is hard, lets go shopping!" | 47 | * -johnstul@us.ibm.com "math is hard, lets go shopping!" |
| 48 | */ | 48 | */ |
| 49 | static unsigned long cyc2ns_scale; | 49 | static unsigned long cyc2ns_scale __read_mostly; |
| 50 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ | 50 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ |
| 51 | 51 | ||
| 52 | static inline void set_cyc2ns_scale(unsigned long cpu_khz) | 52 | 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 a7f5a2aceba2..5e41ee29c8cf 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); | |||
| 74 | * | 74 | * |
| 75 | * -johnstul@us.ibm.com "math is hard, lets go shopping!" | 75 | * -johnstul@us.ibm.com "math is hard, lets go shopping!" |
| 76 | */ | 76 | */ |
| 77 | static unsigned long cyc2ns_scale; | 77 | static unsigned long cyc2ns_scale __read_mostly; |
| 78 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ | 78 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ |
| 79 | 79 | ||
| 80 | static inline void set_cyc2ns_scale(unsigned long cpu_khz) | 80 | 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 3080f84bf7b7..ee5ce3d3cbc3 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) | |||
| 477 | return IRQ_HANDLED; | 477 | return IRQ_HANDLED; |
| 478 | } | 478 | } |
| 479 | 479 | ||
| 480 | static unsigned int cyc2ns_scale; | 480 | static unsigned int cyc2ns_scale __read_mostly; |
| 481 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ | 481 | #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ |
| 482 | 482 | ||
| 483 | static inline void set_cyc2ns_scale(unsigned long cpu_khz) | 483 | static inline void set_cyc2ns_scale(unsigned long cpu_khz) |