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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-20 12:02:20 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-20 12:02:20 -0700 |
commit | efa7e8673c78cc6de2d6c367eb6f50449c57ed90 (patch) | |
tree | 2759535bd50e6d6cc4801a02106ee26f27aa610f /kernel/time.c | |
parent | 02d6112cd7d75bf30685ee4b2e9dc0291b4d3133 (diff) | |
parent | bd807f9c5b90c236c3d173a5815d620bc1b1316d (diff) | |
download | lwn-efa7e8673c78cc6de2d6c367eb6f50449c57ed90.tar.gz lwn-efa7e8673c78cc6de2d6c367eb6f50449c57ed90.zip |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Prevent people from directly including <asm/rwsem.h>.
[IA64] remove time interpolator
[IA64] Convert to generic timekeeping/clocksource
[IA64] refresh some config files for 64K pagesize
[IA64] Delete iosapic_free_rte()
[IA64] fallocate system call
[IA64] Enable percpu vector domain for IA64_DIG
[IA64] Enable percpu vector domain for IA64_GENERIC
[IA64] Support irq migration across domain
[IA64] Add support for vector domain
[IA64] Add mapping table between irq and vector
[IA64] Check if irq is sharable
[IA64] Fix invalid irq vector assumption for iosapic
[IA64] Use dynamic irq for iosapic interrupts
[IA64] Use per iosapic lock for indirect iosapic register access
[IA64] Cleanup lock order in iosapic_register_intr
[IA64] Remove duplicated members in iosapic_rte_info
[IA64] Remove block structure for locking in iosapic.c
Diffstat (limited to 'kernel/time.c')
-rw-r--r-- | kernel/time.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/kernel/time.c b/kernel/time.c index ffe19149d770..e325597f5bf5 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -136,7 +136,6 @@ static inline void warp_clock(void) write_seqlock_irq(&xtime_lock); wall_to_monotonic.tv_sec -= sys_tz.tz_minuteswest * 60; xtime.tv_sec += sys_tz.tz_minuteswest * 60; - time_interpolator_reset(); write_sequnlock_irq(&xtime_lock); clock_was_set(); } @@ -309,92 +308,6 @@ struct timespec timespec_trunc(struct timespec t, unsigned gran) } EXPORT_SYMBOL(timespec_trunc); -#ifdef CONFIG_TIME_INTERPOLATION -void getnstimeofday (struct timespec *tv) -{ - unsigned long seq,sec,nsec; - - do { - seq = read_seqbegin(&xtime_lock); - sec = xtime.tv_sec; - nsec = xtime.tv_nsec+time_interpolator_get_offset(); - } while (unlikely(read_seqretry(&xtime_lock, seq))); - - while (unlikely(nsec >= NSEC_PER_SEC)) { - nsec -= NSEC_PER_SEC; - ++sec; - } - tv->tv_sec = sec; - tv->tv_nsec = nsec; -} -EXPORT_SYMBOL_GPL(getnstimeofday); - -int do_settimeofday (struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - { - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - time_adjust = 0; /* stop active adjtime() */ - time_status |= STA_UNSYNC; - time_maxerror = NTP_PHASE_LIMIT; - time_esterror = NTP_PHASE_LIMIT; - time_interpolator_reset(); - } - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} -EXPORT_SYMBOL(do_settimeofday); - -void do_gettimeofday (struct timeval *tv) -{ - unsigned long seq, nsec, usec, sec, offset; - do { - seq = read_seqbegin(&xtime_lock); - offset = time_interpolator_get_offset(); - sec = xtime.tv_sec; - nsec = xtime.tv_nsec; - } while (unlikely(read_seqretry(&xtime_lock, seq))); - - usec = (nsec + offset) / 1000; - - while (unlikely(usec >= USEC_PER_SEC)) { - usec -= USEC_PER_SEC; - ++sec; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; - - /* - * Make sure xtime.tv_sec [returned by sys_time()] always - * follows the gettimeofday() result precisely. This - * condition is extremely unlikely, it can hit at most - * once per second: - */ - if (unlikely(xtime.tv_sec != tv->tv_sec)) { - unsigned long flags; - - write_seqlock_irqsave(&xtime_lock, flags); - update_wall_time(); - write_sequnlock_irqrestore(&xtime_lock, flags); - } -} -EXPORT_SYMBOL(do_gettimeofday); - -#else /* CONFIG_TIME_INTERPOLATION */ - #ifndef CONFIG_GENERIC_TIME /* * Simulate gettimeofday using do_gettimeofday which only allows a timeval @@ -410,7 +323,6 @@ void getnstimeofday(struct timespec *tv) } EXPORT_SYMBOL_GPL(getnstimeofday); #endif -#endif /* CONFIG_TIME_INTERPOLATION */ /* Converts Gregorian date to seconds since 1970-01-01 00:00:00. * Assumes input in normal date format, i.e. 1980-12-31 23:59:59 |