From: tip-bot for John Stultz <johnstul@us.ibm.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, anton@samba.org, paulus@samba.org,
hpa@zytor.com, mingo@redhat.com, johnstul@us.ibm.com,
tglx@linutronix.de
Subject: [tip:timers/clocksource] powerpc: Cleanup xtime usage
Date: Tue, 27 Jul 2010 10:47:10 GMT [thread overview]
Message-ID: <tip-06d518e3dfb25334282c7e38b4d7a4eada215f6d@git.kernel.org> (raw)
In-Reply-To: <1279068988-21864-6-git-send-email-johnstul@us.ibm.com>
Commit-ID: 06d518e3dfb25334282c7e38b4d7a4eada215f6d
Gitweb: http://git.kernel.org/tip/06d518e3dfb25334282c7e38b4d7a4eada215f6d
Author: John Stultz <johnstul@us.ibm.com>
AuthorDate: Tue, 13 Jul 2010 17:56:22 -0700
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 27 Jul 2010 12:40:54 +0200
powerpc: Cleanup xtime usage
This removes powerpc's direct xtime usage, allowing for further
generic timeekeping cleanups
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
LKML-Reference: <1279068988-21864-6-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/powerpc/kernel/time.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 6fcd648..0711d60 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -864,9 +864,9 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
/* XXX this assumes clock->shift == 22 */
/* 4611686018 ~= 2^(20+64-22) / 1e9 */
new_tb_to_xs = (u64) mult * 4611686018ULL;
- new_stamp_xsec = (u64) xtime.tv_nsec * XSEC_PER_SEC;
+ new_stamp_xsec = (u64) wall_time->tv_nsec * XSEC_PER_SEC;
do_div(new_stamp_xsec, 1000000000);
- new_stamp_xsec += (u64) xtime.tv_sec * XSEC_PER_SEC;
+ new_stamp_xsec += (u64) wall_time->tv_sec * XSEC_PER_SEC;
/*
* tb_update_count is used to allow the userspace gettimeofday code
@@ -884,7 +884,7 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
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->stamp_xtime = xtime;
+ vdso_data->stamp_xtime = *wall_time;
smp_wmb();
++(vdso_data->tb_update_count);
}
@@ -1093,7 +1093,7 @@ void __init time_init(void)
vdso_data->tb_orig_stamp = tb_last_jiffy;
vdso_data->tb_update_count = 0;
vdso_data->tb_ticks_per_sec = tb_ticks_per_sec;
- vdso_data->stamp_xsec = (u64) xtime.tv_sec * XSEC_PER_SEC;
+ vdso_data->stamp_xsec = (u64) get_seconds() * XSEC_PER_SEC;
vdso_data->tb_to_xs = tb_to_xs;
write_sequnlock_irqrestore(&xtime_lock, flags);
next prev parent reply other threads:[~2010-07-27 10:47 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-14 0:56 [PATCH 00/11] -tip Timekeeping changes for 2.6.36 John Stultz
2010-07-14 0:56 ` [PATCH 01/11] x86: Fix vtime/file timestamp inconsistencies John Stultz
2010-07-14 0:56 ` [PATCH 02/11] Implement timespec_add John Stultz
2010-07-14 0:56 ` [PATCH 03/11] time: Kill off CONFIG_GENERIC_TIME John Stultz
2010-07-14 0:56 ` [PATCH 04/11] powerpc: Simplify update_vsyscall John Stultz
2010-07-14 0:56 ` [PATCH 05/11] powerpc: Cleanup xtime usage John Stultz
2010-07-14 0:56 ` [PATCH 06/11] Fix update_vsyscall to provide wall_to_monotonic offset John Stultz
2010-07-14 0:56 ` [PATCH 07/11] Convert um to use read_persistent_clock John Stultz
2010-07-14 0:56 ` [PATCH 08/11] Cleanup hrtimer.c's direct access to wall_to_monotonic John Stultz
2010-07-14 0:56 ` [PATCH 09/11] Make xtime and wall_to_monotonic static John Stultz
2010-07-14 0:56 ` [PATCH 10/11] Convert common x86 clocksources to use clocksource_register_hz/khz John Stultz
2010-07-14 0:56 ` [PATCH 11/11] Add __clocksource_updatefreq_hz/khz methods John Stultz
2010-07-27 10:49 ` [tip:timers/clocksource] clocksource: " tip-bot for John Stultz
2010-07-27 10:48 ` [tip:timers/clocksource] x86: Convert common clocksources to use clocksource_register_hz/khz tip-bot for John Stultz
2010-07-27 10:48 ` [tip:timers/clocksource] timekeeping: Make xtime and wall_to_monotonic static tip-bot for John Stultz
2010-07-27 10:48 ` [tip:timers/clocksource] hrtimer: Cleanup direct access to wall_to_monotonic tip-bot for John Stultz
2010-07-27 10:47 ` [tip:timers/clocksource] um: Convert to use read_persistent_clock tip-bot for John Stultz
2010-07-27 10:47 ` [tip:timers/clocksource] timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset tip-bot for John Stultz
2010-07-27 10:47 ` tip-bot for John Stultz [this message]
2010-07-27 10:46 ` [tip:timers/clocksource] powerpc: Simplify update_vsyscall tip-bot for John Stultz
2010-07-27 23:41 ` [PATCH 04/11] " Paul Mackerras
2010-07-28 1:33 ` john stultz
2010-07-27 10:46 ` [tip:timers/clocksource] time: Kill off CONFIG_GENERIC_TIME tip-bot for John Stultz
2010-07-27 10:46 ` [tip:timers/clocksource] time: Implement timespec_add tip-bot for John Stultz
2010-07-14 2:40 ` [PATCH 01/11] x86: Fix vtime/file timestamp inconsistencies KOSAKI Motohiro
2010-07-14 16:19 ` john stultz
2010-07-15 1:51 ` KOSAKI Motohiro
2010-07-15 2:46 ` john stultz
2010-07-15 4:41 ` KOSAKI Motohiro
2010-07-15 19:30 ` john stultz
2010-07-15 2:51 ` john stultz
2010-07-15 4:41 ` KOSAKI Motohiro
2010-07-27 10:45 ` [tip:timers/clocksource] " tip-bot for John Stultz
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