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Date: Mon, 17 Sep 2012 18:04:58 -0400
From: John Stultz <john.stultz@...aro.org>
To: linux-kernel <linux-kernel@...r.kernel.org>
Cc: John Stultz <john.stultz@...aro.org>,
Tony Luck <tony.luck@...el.com>,
Paul Mackerras <paulus@...ba.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Andy Lutomirski <luto@...capital.net>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
Paul Turner <pjt@...gle.com>,
Steven Rostedt <rostedt@...dmis.org>,
Richard Cochran <richardcochran@...il.com>,
Prarit Bhargava <prarit@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 3/6][RFC] time: Convert CONFIG_GENERIC_TIME_VSYSCALL to CONFIG_GENERIC_TIME_VSYSCALL_OLD
To help migrate archtectures over to the new update_vsyscall method,
redfine CONFIG_GENERIC_TIME_VSYSCALL as CONFIG_GENERIC_TIME_VSYSCALL_OLD
Cc: Tony Luck <tony.luck@...el.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Paul Turner <pjt@...gle.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Richard Cochran <richardcochran@...il.com>
Cc: Prarit Bhargava <prarit@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
arch/ia64/Kconfig | 2 +-
arch/ia64/kernel/time.c | 2 +-
arch/powerpc/Kconfig | 2 +-
arch/powerpc/kernel/time.c | 2 +-
arch/s390/Kconfig | 2 +-
arch/s390/kernel/time.c | 2 +-
arch/x86/Kconfig | 2 +-
arch/x86/kernel/vsyscall_64.c | 2 +-
include/linux/timekeeper_internal.h | 7 ++++---
kernel/time/Kconfig | 2 +-
kernel/time/timekeeping.c | 2 +-
11 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 310cf57..f9e673c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -38,7 +38,7 @@ config IA64
select ARCH_TASK_STRUCT_ALLOCATOR
select ARCH_THREAD_INFO_ALLOCATOR
select ARCH_CLOCKSOURCE_DATA
- select GENERIC_TIME_VSYSCALL
+ select GENERIC_TIME_VSYSCALL_OLD
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index acb688f..d2f4e26 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -454,7 +454,7 @@ void update_vsyscall_tz(void)
{
}
-void update_vsyscall(struct timespec *wall, struct timespec *wtm,
+void update_vsyscall_old(struct timespec *wall, struct timespec *wtm,
struct clocksource *c, u32 mult)
{
write_seqcount_begin(&fsyscall_gtod_data.seq);
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 352f416..0881660 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -135,7 +135,7 @@ config PPC
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
select GENERIC_CMOS_UPDATE
- select GENERIC_TIME_VSYSCALL
+ select GENERIC_TIME_VSYSCALL_OLD
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 613a830d..c825809 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -712,7 +712,7 @@ static cycle_t timebase_read(struct clocksource *cs)
return (cycle_t)get_tb();
}
-void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
struct clocksource *clock, u32 mult)
{
u64 new_tb_to_xs, new_stamp_xsec;
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 107610e..ba488aa 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -121,7 +121,7 @@ config S390
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
select ARCH_WANT_IPC_PARSE_VERSION
select GENERIC_SMP_IDLE_THREAD
- select GENERIC_TIME_VSYSCALL
+ select GENERIC_TIME_VSYSCALL_OLD
select GENERIC_CLOCKEVENTS
select KTIME_SCALAR if 32BIT
select HAVE_ARCH_SECCOMP_FILTER
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index bfb62ad..c5430bf 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -219,7 +219,7 @@ struct clocksource * __init clocksource_default_clock(void)
return &clocksource_tod;
}
-void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
struct clocksource *clock, u32 mult)
{
if (clock != &clocksource_tod)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8ec3a1a..e3f3c1a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -93,7 +93,7 @@ config X86
select GENERIC_CLOCKEVENTS
select ARCH_CLOCKSOURCE_DATA if X86_64
select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
- select GENERIC_TIME_VSYSCALL if X86_64
+ select GENERIC_TIME_VSYSCALL_OLD if X86_64
select KTIME_SCALAR if X86_32
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 6ec8411..77dde29 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -82,7 +82,7 @@ void update_vsyscall_tz(void)
vsyscall_gtod_data.sys_tz = sys_tz;
}
-void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
struct clocksource *clock, u32 mult)
{
struct timespec monotonic;
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 9c1c2cf..a904d76 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -67,13 +67,14 @@ struct timekeeper {
};
-#ifdef CONFIG_GENERIC_TIME_VSYSCALL
+#ifdef CONFIG_GENERIC_TIME_VSYSCALL_OLD
extern void
-update_vsyscall(struct timespec *ts, struct timespec *wtm,
+update_vsyscall_old(struct timespec *ts, struct timespec *wtm,
struct clocksource *c, u32 mult);
extern void update_vsyscall_tz(void);
#else
-static inline void update_vsyscall(struct timespec *ts, struct timespec *wtm,
+static inline void
+update_vsyscall_old(struct timespec *ts, struct timespec *wtm,
struct clocksource *c, u32 mult)
{
}
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index fd42bd4..489c861 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -13,7 +13,7 @@ config ARCH_CLOCKSOURCE_DATA
bool
# Timekeeping vsyscall support
-config GENERIC_TIME_VSYSCALL
+config GENERIC_TIME_VSYSCALL_OLD
bool
# ktime_t scalar 64bit nsec representation
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 61f5fba..bdce688 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -199,7 +199,7 @@ static void timekeeping_update(struct timekeeper *tk, bool clearntp)
ntp_clear();
}
xt = tk_xtime(tk);
- update_vsyscall(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
+ update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
}
/**
--
1.7.9.5
--
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