From: Steven Rostedt <rostedt@goodmis.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Christoph Hellwig <hch@infradead.org>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Gregory Haskins <ghaskins@novell.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Thomas Gleixner <tglx@linutronix.de>,
Tim Bird <tim.bird@am.sony.com>, Sam Ravnborg <sam@ravnborg.org>,
"Frank Ch. Eigler" <fche@redhat.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
John Stultz <johnstul@us.ibm.com>,
Arjan van de Ven <arjan@infradead.org>,
Steven Rostedt <srostedt@redhat.com>
Subject: [PATCH 10/20 -v5] add notrace annotations to timing events
Date: Wed, 23 Jan 2008 11:02:46 -0500 [thread overview]
Message-ID: <20080123160442.706010266@goodmis.org> (raw)
In-Reply-To: 20080123160236.969334052@goodmis.org
[-- Attachment #1: mcount-add-time-notrace-annotations.patch --]
[-- Type: text/plain, Size: 5179 bytes --]
This patch adds notrace annotations to timer functions
that will be used by tracing. This helps speed things up and
also keeps the ugliness of printing these functions down.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
arch/x86/kernel/apic_32.c | 2 +-
arch/x86/kernel/hpet.c | 2 +-
arch/x86/kernel/time_32.c | 2 +-
arch/x86/kernel/tsc_32.c | 2 +-
arch/x86/kernel/tsc_64.c | 4 ++--
arch/x86/lib/delay_32.c | 6 +++---
drivers/clocksource/acpi_pm.c | 8 ++++----
7 files changed, 13 insertions(+), 13 deletions(-)
Index: linux-mcount.git/arch/x86/kernel/apic_32.c
===================================================================
--- linux-mcount.git.orig/arch/x86/kernel/apic_32.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/kernel/apic_32.c 2008-01-23 10:27:14.000000000 -0500
@@ -577,7 +577,7 @@ static void local_apic_timer_interrupt(v
* interrupt as well. Thus we cannot inline the local irq ... ]
*/
-void fastcall smp_apic_timer_interrupt(struct pt_regs *regs)
+notrace fastcall void smp_apic_timer_interrupt(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
Index: linux-mcount.git/arch/x86/kernel/hpet.c
===================================================================
--- linux-mcount.git.orig/arch/x86/kernel/hpet.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/kernel/hpet.c 2008-01-23 10:27:14.000000000 -0500
@@ -295,7 +295,7 @@ static int hpet_legacy_next_event(unsign
/*
* Clock source related code
*/
-static cycle_t read_hpet(void)
+static notrace cycle_t read_hpet(void)
{
return (cycle_t)hpet_readl(HPET_COUNTER);
}
Index: linux-mcount.git/arch/x86/kernel/time_32.c
===================================================================
--- linux-mcount.git.orig/arch/x86/kernel/time_32.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/kernel/time_32.c 2008-01-23 10:27:14.000000000 -0500
@@ -122,7 +122,7 @@ static int set_rtc_mmss(unsigned long no
int timer_ack;
-unsigned long profile_pc(struct pt_regs *regs)
+notrace unsigned long profile_pc(struct pt_regs *regs)
{
unsigned long pc = instruction_pointer(regs);
Index: linux-mcount.git/arch/x86/kernel/tsc_32.c
===================================================================
--- linux-mcount.git.orig/arch/x86/kernel/tsc_32.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/kernel/tsc_32.c 2008-01-23 10:27:14.000000000 -0500
@@ -269,7 +269,7 @@ core_initcall(cpufreq_tsc);
static unsigned long current_tsc_khz = 0;
-static cycle_t read_tsc(void)
+static notrace cycle_t read_tsc(void)
{
cycle_t ret;
Index: linux-mcount.git/arch/x86/kernel/tsc_64.c
===================================================================
--- linux-mcount.git.orig/arch/x86/kernel/tsc_64.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/kernel/tsc_64.c 2008-01-23 10:27:14.000000000 -0500
@@ -248,13 +248,13 @@ __setup("notsc", notsc_setup);
/* clock source code: */
-static cycle_t read_tsc(void)
+static notrace cycle_t read_tsc(void)
{
cycle_t ret = (cycle_t)get_cycles_sync();
return ret;
}
-static cycle_t __vsyscall_fn vread_tsc(void)
+static notrace cycle_t __vsyscall_fn vread_tsc(void)
{
cycle_t ret = (cycle_t)get_cycles_sync();
return ret;
Index: linux-mcount.git/arch/x86/lib/delay_32.c
===================================================================
--- linux-mcount.git.orig/arch/x86/lib/delay_32.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/arch/x86/lib/delay_32.c 2008-01-23 10:27:14.000000000 -0500
@@ -24,7 +24,7 @@
#endif
/* simple loop based delay: */
-static void delay_loop(unsigned long loops)
+static notrace void delay_loop(unsigned long loops)
{
int d0;
@@ -39,7 +39,7 @@ static void delay_loop(unsigned long loo
}
/* TSC based delay: */
-static void delay_tsc(unsigned long loops)
+static notrace void delay_tsc(unsigned long loops)
{
unsigned long bclock, now;
@@ -72,7 +72,7 @@ int read_current_timer(unsigned long *ti
return -1;
}
-void __delay(unsigned long loops)
+notrace void __delay(unsigned long loops)
{
delay_fn(loops);
}
Index: linux-mcount.git/drivers/clocksource/acpi_pm.c
===================================================================
--- linux-mcount.git.orig/drivers/clocksource/acpi_pm.c 2008-01-23 10:26:11.000000000 -0500
+++ linux-mcount.git/drivers/clocksource/acpi_pm.c 2008-01-23 10:27:14.000000000 -0500
@@ -30,13 +30,13 @@
*/
u32 pmtmr_ioport __read_mostly;
-static inline u32 read_pmtmr(void)
+static inline notrace u32 read_pmtmr(void)
{
/* mask the output to 24 bits */
return inl(pmtmr_ioport) & ACPI_PM_MASK;
}
-u32 acpi_pm_read_verified(void)
+notrace u32 acpi_pm_read_verified(void)
{
u32 v1 = 0, v2 = 0, v3 = 0;
@@ -56,12 +56,12 @@ u32 acpi_pm_read_verified(void)
return v2;
}
-static cycle_t acpi_pm_read_slow(void)
+static notrace cycle_t acpi_pm_read_slow(void)
{
return (cycle_t)acpi_pm_read_verified();
}
-static cycle_t acpi_pm_read(void)
+static notrace cycle_t acpi_pm_read(void)
{
return (cycle_t)read_pmtmr();
}
--
next prev parent reply other threads:[~2008-01-23 16:10 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-23 16:02 [PATCH 00/20 -v5] mcount and latency tracing utility -v5 Steven Rostedt
2008-01-23 16:02 ` [PATCH 01/20 -v5] printk - dont wakeup klogd with interrupts disabled Steven Rostedt
2008-01-23 17:06 ` Daniel Walker
2008-01-23 17:25 ` Mathieu Desnoyers
2008-01-23 17:49 ` Tim Bird
2008-01-24 10:35 ` Pavel Machek
2008-01-23 17:27 ` Steven Rostedt
2008-01-23 17:32 ` Mathieu Desnoyers
2008-01-23 17:43 ` Daniel Walker
2008-01-23 18:18 ` Steven Rostedt
2008-01-23 18:28 ` Daniel Walker
2008-01-23 18:43 ` Steven Rostedt
2008-01-23 18:50 ` Daniel Walker
2008-01-23 19:59 ` Daniel Walker
2008-01-24 22:42 ` [PATCH] defer printks in irqs Tim Bird
2008-01-24 22:48 ` Peter Zijlstra
2008-01-24 23:23 ` Tim Bird
2008-01-27 6:01 ` Andrew Morton
2008-01-28 21:14 ` Tim Bird
2008-01-24 10:36 ` [PATCH 01/20 -v5] printk - dont wakeup klogd with interrupts disabled Pavel Machek
2008-01-23 16:02 ` [PATCH 02/20 -v5] Add basic support for gcc profiler instrumentation Steven Rostedt
2008-01-23 16:02 ` [PATCH 03/20 -v5] Annotate core code that should not be traced Steven Rostedt
2008-01-23 16:02 ` [PATCH 04/20 -v5] x86_64: notrace annotations Steven Rostedt
2008-01-23 16:02 ` [PATCH 05/20 -v5] add notrace annotations to vsyscall Steven Rostedt
2008-01-23 16:02 ` [PATCH 06/20 -v5] add notrace annotations for NMI routines Steven Rostedt
2008-01-23 21:31 ` Mathieu Desnoyers
2008-01-23 21:58 ` Steven Rostedt
2008-01-26 5:25 ` Steven Rostedt
2008-01-28 11:51 ` Jan Kiszka
2008-01-28 12:15 ` Steven Rostedt
2008-01-23 16:02 ` [PATCH 07/20 -v5] handle accurate time keeping over long delays Steven Rostedt
2008-01-23 16:02 ` [PATCH 08/20 -v5] initialize the clock source to jiffies clock Steven Rostedt
2008-01-23 16:40 ` Tim Bird
2008-01-23 16:02 ` [PATCH 09/20 -v5] add get_monotonic_cycles Steven Rostedt
2008-01-23 16:02 ` Steven Rostedt [this message]
2008-01-23 16:02 ` [PATCH 11/20 -v5] mcount based trace in the form of a header file library Steven Rostedt
2008-01-23 16:02 ` [PATCH 12/20 -v5] Add context switch marker to sched.c Steven Rostedt
2008-01-23 16:02 ` [PATCH 13/20 -v5] Make the task State char-string visible to all Steven Rostedt
2008-01-23 16:02 ` [PATCH 14/20 -v5] Add tracing of context switches Steven Rostedt
2008-01-23 16:02 ` [PATCH 15/20 -v5] Generic command line storage Steven Rostedt
2008-01-23 16:02 ` [PATCH 16/20 -v5] trace generic call to schedule switch Steven Rostedt
2008-01-23 16:02 ` [PATCH 17/20 -v5] Add marker in try_to_wake_up Steven Rostedt
2008-01-23 16:02 ` [PATCH 18/20 -v5] mcount tracer for wakeup latency timings Steven Rostedt
2008-01-23 16:02 ` [PATCH 19/20 -v5] Trace irq disabled critical timings Steven Rostedt
2008-01-23 16:53 ` Steven Rostedt
2008-01-23 17:11 ` Steven Rostedt
2008-01-23 17:27 ` Frank Ch. Eigler
2008-01-23 17:45 ` Steven Rostedt
2008-01-23 17:54 ` Mathieu Desnoyers
2008-01-23 17:58 ` Peter Zijlstra
2008-01-23 18:25 ` Frank Ch. Eigler
2008-01-23 18:48 ` Steven Rostedt
2008-01-23 21:29 ` Mathieu Desnoyers
2008-01-23 16:02 ` [PATCH 20/20 -v5] trace preempt off " Steven Rostedt
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