Messages in this thread Patch in this message | | | Date | Fri, 12 Jun 2009 15:07:43 -0700 | From | Tim Bird <> | Subject | [PATCH] ftrace,arm: add notrace to ARM sched_clock routines - resend |
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Add notrace attribute to sched_clock, to avoid recursion with ftrace function tracing.
Signed-off-by: Tim Bird <tim.bird@am.sony.com> --- arch/arm/mach-mmp/time.c | 2 +- arch/arm/mach-pxa/time.c | 2 +- arch/arm/mach-realview/core.c | 2 +- arch/arm/mach-sa1100/generic.c | 2 +- arch/arm/mach-versatile/core.c | 2 +- arch/arm/plat-omap/common.c | 4 ++-- 6 files changed, 7 insertions(+), 7 deletions(-)
--- a/arch/arm/mach-mmp/time.c +++ b/arch/arm/mach-mmp/time.c @@ -72,7 +72,7 @@ static inline uint32_t timer_read(void) return __raw_readl(TIMERS_VIRT_BASE + TMR_CVWR(0)); }
-unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(timer_read()); return (v * tcr2ns_scale) >> TCR2NS_SCALE_FACTOR; --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c @@ -51,7 +51,7 @@ static void __init set_oscr2ns_scale(uns oscr2ns_scale++; }
-unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(OSCR); return (v * oscr2ns_scale) >> OSCR2NS_SCALE_FACTOR; --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -60,7 +60,7 @@ void __iomem *gic_cpu_base_addr; * This is the RealView sched_clock implementation. This has * a resolution of 41.7ns, and a maximum value of about 179s. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v;
--- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -131,7 +131,7 @@ EXPORT_SYMBOL(cpufreq_get); * * ( * 1E9 / 3686400 => * 78125 / 288) */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(OSCR);
--- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -237,7 +237,7 @@ void __init versatile_map_io(void) * long as there is always less than 89 seconds between successive * calls to this function. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long v = cnt32_to_63(readl(VERSATILE_REFCOUNTER));
--- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -185,7 +185,7 @@ console_initcall(omap_add_serial_console
#include <linux/clocksource.h>
-static cycle_t omap_32k_read(struct clocksource *cs) +static cycle_t notrace omap_32k_read(struct clocksource *cs) { return omap_readl(TIMER_32K_SYNCHRONIZED); } @@ -203,7 +203,7 @@ static struct clocksource clocksource_32 * Returns current time from boot in nsecs. It's OK for this to wrap * around for now, as it's just a relative time stamp. */ -unsigned long long sched_clock(void) +unsigned long long notrace sched_clock(void) { unsigned long long ret;
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