linux/kernel/time
Thomas Gleixner 136bccbc2e ntp: Read reference time only once
The reference time is required twice in ntp_update_offset(). It will not
change in the meantime as the calling code holds the timekeeper lock. Read
it only once and store it into a local variable.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20240911-devel-anna-maria-b4-timers-ptp-ntp-v1-6-2d52f4e13476@linutronix.de
2024-10-02 16:53:39 +02:00
..
alarmtimer.c treewide: Fix wrong singular form of jiffies in comments 2024-09-08 20:47:40 +02:00
clockevents.c treewide: Fix wrong singular form of jiffies in comments 2024-09-08 20:47:40 +02:00
clocksource-wdtest.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
clocksource.c clocksource: Set cs_watchdog_read() checks based on .uncertainty_margin 2024-08-02 18:37:13 +02:00
hrtimer.c In the v6.12 scheduler development cycle we had 63 commits from 18 contributors: 2024-09-19 15:55:58 +02:00
itimer.c
jiffies.c clocksource: Make clocksource watchdog test safe for slow-HZ systems 2021-08-28 17:01:32 +02:00
Kconfig clocksource: Make the int help prompt unit readable in ncurses 2024-04-30 00:12:22 +02:00
Makefile timers: Implement the hierarchical pull model 2024-02-22 17:52:32 +01:00
namespace.c vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy 2022-12-01 11:35:40 +01:00
ntp_internal.h ntp: Make sure RTC is synchronized when time goes backwards 2024-09-10 13:50:40 +02:00
ntp.c ntp: Read reference time only once 2024-10-02 16:53:39 +02:00
posix-clock.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
posix-cpu-timers.c posix-timers: Consolidate signal queueing 2024-07-29 21:57:35 +02:00
posix-stubs.c posix-timers: Get rid of [COMPAT_]SYS_NI() uses 2023-12-20 21:30:27 -08:00
posix-timers.c treewide: Fix wrong singular form of jiffies in comments 2024-09-08 20:47:40 +02:00
posix-timers.h posix-timers: Consolidate signal queueing 2024-07-29 21:57:35 +02:00
sched_clock.c time/sched_clock: Provide sched_clock_noinstr() 2023-06-05 21:11:04 +02:00
test_udelay.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
tick-broadcast-hrtimer.c time/tick-broadcast: Remove RCU_NONIDLE() usage 2023-01-13 11:48:16 +01:00
tick-broadcast.c tick/broadcast: Move per CPU pointer access into the atomic section 2024-07-31 12:37:43 +02:00
tick-common.c tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device() 2024-06-10 20:18:13 +02:00
tick-internal.h tick: Move broadcast cancellation up to CPUHP_AP_TICK_DYING 2024-02-26 11:37:32 +01:00
tick-legacy.c
tick-oneshot.c time: Fix various kernel-doc problems 2023-01-03 11:07:58 +01:00
tick-sched.c tick/sched: Combine WARN_ON_ONCE and print_once 2024-07-03 21:32:55 +02:00
tick-sched.h tick/sched: Fix struct tick_sched doc warnings 2024-04-01 10:36:35 +02:00
time_test.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
time.c time: add kernel-doc in time.c 2023-07-14 13:47:07 -06:00
timeconst.bc
timeconv.c time: Improve performance of time64_to_tm() 2021-06-24 11:51:59 +02:00
timecounter.c time/timecounter: Mark 1st argument of timecounter_cyc2time() as const 2021-04-16 21:03:50 +02:00
timekeeping_debug.c
timekeeping_internal.h
timekeeping.c ntp: Make sure RTC is synchronized when time goes backwards 2024-09-10 13:50:40 +02:00
timekeeping.h
timer_list.c tick: Split nohz and highres features from nohz_mode 2024-02-26 11:37:32 +01:00
timer_migration.c timers/migration: Fix grammar in comment 2024-07-22 18:03:34 +02:00
timer_migration.h timers/migration: Rename childmask by groupmask to make naming more obvious 2024-07-22 18:03:34 +02:00
timer.c Updates for timers and timekeeping: 2024-09-17 07:25:37 +02:00
vsyscall.c vdso: Add vdso_data:: Max_cycles 2024-04-08 15:03:07 +02:00