Thomas Gleixner 97e5379253 timekeeping: Provide timekeeping_restore_shadow() ...

Functions which operate on the real timekeeper, e.g. do_settimeofday(),
have error conditions. If they are hit a full timekeeping update is still
required because the already committed operations modified the timekeeper.

When switching these functions to operate on the shadow timekeeper then the
full update can be avoided in the error case, but the modified shadow
timekeeper has to be restored.

Provide a helper function for that.

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/20241009-devel-anna-maria-b4-timers-ptp-timekeeping-v2-15-554456a44a15@linutronix.de

2024-10-25 19:49:14 +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: Remove unused clocksource_change_rating

2024-10-10 21:03:10 +02:00

hrtimer.c

timers: Move *sleep*() and timeout functions into a separate file

2024-10-16 00:36:46 +02:00

itimer.c

…

jiffies.c

…

Kconfig

clocksource: Make the int help prompt unit readable in ncurses

2024-04-30 00:12:22 +02:00

Makefile

timers: Move *sleep*() and timeout functions into a separate file

2024-10-16 00:36:46 +02:00

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: Move pps monitors into ntp_data

2024-10-02 16:53:41 +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

posix-timers: Replace call_rcu() by kfree_rcu() for simple kmem_cache_free() callback

2024-10-24 11:22:54 +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

sleep_timeout.c

timers: Add a warning to usleep_range_state() for wrong order of arguments

2024-10-16 00:36:47 +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: Remove '%' from numeric constant in kernel-doc comment

2024-10-16 00:30:26 +02:00

timeconst.bc

…

timeconv.c

…

timecounter.c

…

timekeeping_debug.c

timekeeping: Add percpu counter for tracking floor swap events

2024-10-06 20:56:07 +02:00

timekeeping_internal.h

timekeeping: Encapsulate locking/unlocking of timekeeper_lock

2024-10-25 19:49:13 +02:00

timekeeping.c

timekeeping: Provide timekeeping_restore_shadow()

2024-10-25 19:49:14 +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

timers: Move *sleep*() and timeout functions into a separate file

2024-10-16 00:36:46 +02:00

vsyscall.c

timekeeping: Encapsulate locking/unlocking of timekeeper_lock

2024-10-25 19:49:13 +02:00