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| author | John Stultz <john.stultz@linaro.org> | 2012-09-11 19:58:13 -0400 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2012-09-24 12:38:08 -0400 |
| commit | 576094b7f0aaf41aadab9b7d4e5bd85faa432711 (patch) | |
| tree | 9cf7a86b58e5b6242625663af274b594085487fa /kernel | |
| parent | 706394211648117762edfaeffd6fc04bf3b1a75d (diff) | |
| download | linux-stable-576094b7f0aaf41aadab9b7d4e5bd85faa432711.tar.gz linux-stable-576094b7f0aaf41aadab9b7d4e5bd85faa432711.tar.bz2 linux-stable-576094b7f0aaf41aadab9b7d4e5bd85faa432711.zip | |
time: Introduce new GENERIC_TIME_VSYSCALL
Now that we moved everyone over to GENERIC_TIME_VSYSCALL_OLD,
introduce the new declaration and config option for the new
update_vsyscall method.
Cc: Tony Luck <tony.luck@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/Kconfig | 4 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 14 |
2 files changed, 5 insertions, 13 deletions
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index 489c86154d1f..8601f0db1261 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -13,6 +13,10 @@ config ARCH_CLOCKSOURCE_DATA bool # Timekeeping vsyscall support +config GENERIC_TIME_VSYSCALL + bool + +# Timekeeping vsyscall support config GENERIC_TIME_VSYSCALL_OLD bool diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 7c2851384c46..ce618010c373 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -42,15 +42,6 @@ static inline void tk_normalize_xtime(struct timekeeper *tk) } } -static struct timespec tk_xtime(struct timekeeper *tk) -{ - struct timespec ts; - - ts.tv_sec = tk->xtime_sec; - ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift); - return ts; -} - static void tk_set_xtime(struct timekeeper *tk, const struct timespec *ts) { tk->xtime_sec = ts->tv_sec; @@ -192,14 +183,11 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk) /* must hold write on timekeeper.lock */ static void timekeeping_update(struct timekeeper *tk, bool clearntp) { - struct timespec xt; - if (clearntp) { tk->ntp_error = 0; ntp_clear(); } - xt = tk_xtime(tk); - update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult); + update_vsyscall(tk); } /** |