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[PATCH 05/20 -v5] add notrace annotations to vsyscall.

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From: Steven Rostedt <rostedt@...>
To: LKML <linux-kernel@...>
Cc: Ingo Molnar <mingo@...>, Linus Torvalds <torvalds@...>, Andrew Morton <akpm@...>, Peter Zijlstra <a.p.zijlstra@...>, Christoph Hellwig <hch@...>, Mathieu Desnoyers <mathieu.desnoyers@...>, Gregory Haskins <ghaskins@...>, Arnaldo Carvalho de Melo <acme@...>, Thomas Gleixner <tglx@...>, Tim Bird <tim.bird@...>, Sam Ravnborg <sam@...>, Frank Ch. Eigler <fche@...>, Jan Kiszka <jan.kiszka@...>, John Stultz <johnstul@...>, Arjan van de Ven <arjan@...>, Steven Rostedt <srostedt@...>
Subject: [PATCH 05/20 -v5] add notrace annotations to vsyscall.
Date: Wednesday, January 23, 2008 - 12:02 pm

Add the notrace annotations to some of the vsyscall functions.


Signed-off-by: Steven Rostedt <srostedt@redhat.com>

---

 arch/x86/kernel/vsyscall_64.c  |    3 ++-

 arch/x86/vdso/vclock_gettime.c |   15 ++++++++-------

 arch/x86/vdso/vgetcpu.c        |    3 ++-

 include/asm-x86/vsyscall.h     |    3 ++-

 4 files changed, 14 insertions(+), 10 deletions(-)


Index: linux-mcount.git/arch/x86/kernel/vsyscall_64.c

===================================================================

--- linux-mcount.git.orig/arch/x86/kernel/vsyscall_64.c	2008-01-23 10:26:31.000000000 -0500

+++ linux-mcount.git/arch/x86/kernel/vsyscall_64.c	2008-01-23 10:26:49.000000000 -0500

@@ -42,7 +42,8 @@

 #include <asm/topology.h>

 #include <asm/vgtod.h>


-#define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr)))

+#define __vsyscall(nr) \

+		__attribute__ ((unused, __section__(".vsyscall_" #nr))) notrace

 #define __syscall_clobber "r11","rcx","memory"

 #define __pa_vsymbol(x)			\

 	({unsigned long v;  		\

Index: linux-mcount.git/arch/x86/vdso/vclock_gettime.c

===================================================================

--- linux-mcount.git.orig/arch/x86/vdso/vclock_gettime.c	2008-01-23 10:26:31.000000000 -0500

+++ linux-mcount.git/arch/x86/vdso/vclock_gettime.c	2008-01-23 10:26:49.000000000 -0500

@@ -24,7 +24,7 @@


 #define gtod vdso_vsyscall_gtod_data


-static long vdso_fallback_gettime(long clock, struct timespec *ts)

+notrace static long vdso_fallback_gettime(long clock, struct timespec *ts)

 {

 	long ret;

 	asm("syscall" : "=a" (ret) :

@@ -32,7 +32,7 @@ static long vdso_fallback_gettime(long c

 	return ret;

 }


-static inline long vgetns(void)

+notrace static inline long vgetns(void)

 {

 	long v;

 	cycles_t (*vread)(void);

@@ -41,7 +41,7 @@ static inline long vgetns(void)

 	return (v * gtod->clock.mult) >> gtod->clock.shift;

 }


-static noinline int do_realtime(struct timespec *ts)

+notrace static noinline int do_realtime(struct timesp...
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Previous thread: [PATCH 07/20 -v5] handle accurate time keeping over long delays by Steven Rostedt on Wednesday, January 23, 2008 - 12:02 pm. (1 message)

Next thread: [PATCH 01/20 -v5] printk - dont wakeup klogd with interrupts disabled by Steven Rostedt on Wednesday, January 23, 2008 - 12:02 pm. (19 messages)