diff options
author | John Stultz <johnstul@us.ibm.com> | 2010-07-13 17:56:23 -0700 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2010-07-27 12:40:54 +0200 |
commit | 7615856ebfee52b080c22d263ca4debbd0df0ac1 (patch) | |
tree | beb06e60af7560c28d5bad41f03a5238636e91fc /arch | |
parent | 06d518e3dfb25334282c7e38b4d7a4eada215f6d (diff) | |
download | linux-7615856ebfee52b080c22d263ca4debbd0df0ac1.tar.bz2 |
timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset
update_vsyscall() did not provide the wall_to_monotoinc offset,
so arch specific implementations tend to reference wall_to_monotonic
directly. This limits future cleanups in the timekeeping core, so
this patch fixes the update_vsyscall interface to provide
wall_to_monotonic, allowing wall_to_monotonic to be made static
as planned in Documentation/feature-removal-schedule.txt
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tony Luck <tony.luck@intel.com>
LKML-Reference: <1279068988-21864-7-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ia64/kernel/time.c | 7 | ||||
-rw-r--r-- | arch/powerpc/kernel/time.c | 8 | ||||
-rw-r--r-- | arch/s390/kernel/time.c | 8 | ||||
-rw-r--r-- | arch/x86/kernel/vsyscall_64.c | 6 |
4 files changed, 15 insertions, 14 deletions
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 653b3c46ea82..ed6f22eb5b12 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -471,7 +471,8 @@ void update_vsyscall_tz(void) { } -void update_vsyscall(struct timespec *wall, struct clocksource *c, u32 mult) +void update_vsyscall(struct timespec *wall, struct timespec *wtm, + struct clocksource *c, u32 mult) { unsigned long flags; @@ -487,9 +488,9 @@ void update_vsyscall(struct timespec *wall, struct clocksource *c, u32 mult) /* copy kernel time structures */ fsyscall_gtod_data.wall_time.tv_sec = wall->tv_sec; fsyscall_gtod_data.wall_time.tv_nsec = wall->tv_nsec; - fsyscall_gtod_data.monotonic_time.tv_sec = wall_to_monotonic.tv_sec + fsyscall_gtod_data.monotonic_time.tv_sec = wtm->tv_sec + wall->tv_sec; - fsyscall_gtod_data.monotonic_time.tv_nsec = wall_to_monotonic.tv_nsec + fsyscall_gtod_data.monotonic_time.tv_nsec = wtm->tv_nsec + wall->tv_nsec; /* normalize */ diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 0711d60f40b0..e215f76bba1c 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -849,8 +849,8 @@ static cycle_t timebase_read(struct clocksource *cs) return (cycle_t)get_tb(); } -void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, - u32 mult) +void update_vsyscall(struct timespec *wall_time, struct timespec *wtm, + struct clocksource *clock, u32 mult) { u64 new_tb_to_xs, new_stamp_xsec; @@ -882,8 +882,8 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, vdso_data->tb_orig_stamp = clock->cycle_last; vdso_data->stamp_xsec = new_stamp_xsec; vdso_data->tb_to_xs = new_tb_to_xs; - vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec; - vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec; + vdso_data->wtom_clock_sec = wtm->tv_sec; + vdso_data->wtom_clock_nsec = wtm->tv_nsec; vdso_data->stamp_xtime = *wall_time; smp_wmb(); ++(vdso_data->tb_update_count); diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index a2163c95eb98..aeb30c6f279c 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -207,8 +207,8 @@ struct clocksource * __init clocksource_default_clock(void) return &clocksource_tod; } -void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, - u32 mult) +void update_vsyscall(struct timespec *wall_time, struct timespec *wtm, + struct clocksource *clock, u32 mult) { if (clock != &clocksource_tod) return; @@ -219,8 +219,8 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, vdso_data->xtime_tod_stamp = clock->cycle_last; vdso_data->xtime_clock_sec = wall_time->tv_sec; vdso_data->xtime_clock_nsec = wall_time->tv_nsec; - vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec; - vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec; + vdso_data->wtom_clock_sec = wtm->tv_sec; + vdso_data->wtom_clock_nsec = wtm->tv_nsec; vdso_data->ntp_mult = mult; smp_wmb(); ++vdso_data->tb_update_count; diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index dce0c3c5a787..dcbb28c4b694 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -73,8 +73,8 @@ void update_vsyscall_tz(void) write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags); } -void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, - u32 mult) +void update_vsyscall(struct timespec *wall_time, struct timespec *wtm, + struct clocksource *clock, u32 mult) { unsigned long flags; @@ -87,7 +87,7 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock, vsyscall_gtod_data.clock.shift = clock->shift; vsyscall_gtod_data.wall_time_sec = wall_time->tv_sec; vsyscall_gtod_data.wall_time_nsec = wall_time->tv_nsec; - vsyscall_gtod_data.wall_to_monotonic = wall_to_monotonic; + vsyscall_gtod_data.wall_to_monotonic = *wtm; vsyscall_gtod_data.wall_time_coarse = __current_kernel_time(); write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags); } |