Tim Chen fd36c0072c tick/sched: Preserve number of idle sleeps across CPU hotplug events ...

commit 9a574ea9069be30b835a3da772c039993c43369b upstream.

Commit 71fee48f ("tick-sched: Fix idle and iowait sleeptime accounting vs
CPU hotplug") preserved total idle sleep time and iowait sleeptime across
CPU hotplug events.

Similar reasoning applies to the number of idle calls and idle sleeps to
get the proper average of sleep time per idle invocation.

Preserve those fields too.

Fixes: 71fee48f ("tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug")
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240122233534.3094238-1-tim.c.chen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 7c0fdf4485c7bb02a1c7d7a4a68c3686d6ac5d53)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>

2024-03-08 08:21:29 +00:00

..

alarmtimer.c

alarmtimer: Prevent starvation by small intervals and SIG_IGN

2023-02-25 11:50:31 +01:00

clockevents.c

clockevents: Make clockevents_config() static

2017-03-23 12:14:05 -07:00

clocksource.c

clocksource: Prevent double add_timer_on() for watchdog_timer

2020-02-14 16:32:20 -05:00

hrtimer.c

timers: Prevent union confusion from unexpected restart_syscall()

2023-03-11 16:26:41 +01:00

itimer.c

time: Prevent undefined behaviour in timespec64_to_ns()

2020-11-18 18:27:52 +01:00

jiffies.c

jiffies: Revert bogus conversion of NSEC_PER_SEC to TICK_NSEC

2017-03-07 11:03:28 +01:00

Kconfig

rcu: Remove nohz_full full-system-idle state machine

2017-06-08 18:52:39 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ntp_internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ntp.c

ntp: Limit TAI-UTC offset

2019-07-31 07:28:27 +02:00

posix-clock.c

ptp: fix the race between the release of ptp_clock and cdev

2020-01-04 14:00:12 +01:00

posix-cpu-timers.c

kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()

2021-03-24 11:05:05 +01:00

posix-stubs.c

timers: Prevent union confusion from unexpected restart_syscall()

2023-03-11 16:26:41 +01:00

posix-timers.c

posix-timers: Ensure timer ID search-loop limit is valid

2023-08-11 11:33:48 +02:00

posix-timers.h

posix-timers: Make forward callback return s64

2018-10-03 17:00:50 -07:00

sched_clock.c

timers, sched_clock: Update timeout for clock wrap

2017-03-23 12:30:27 -07:00

test_udelay.c

…

tick-broadcast-hrtimer.c

tick: broadcast-hrtimer: Fix a race in bc_set_next

2019-10-11 18:18:46 +02:00

tick-broadcast.c

tick/broadcast: Use for_each_cpu() specially on UP kernels

2018-05-22 18:54:00 +02:00

tick-common.c

ktime: Cleanup ktime_set() usage

2016-12-25 17:21:22 +01:00

tick-internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tick-oneshot.c

ktime: Get rid of the union

2016-12-25 17:21:22 +01:00

tick-sched.c

tick/sched: Preserve number of idle sleeps across CPU hotplug events

2024-03-08 08:21:29 +00:00

tick-sched.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

time.c

time: Make sure jiffies_to_msecs() preserves non-zero time periods

2018-07-03 11:24:56 +02:00

timeconst.bc

time: Introduce jiffies64_to_nsecs()

2017-02-01 09:13:45 +01:00

timeconv.c

…

timecounter.c

clocksource: Use a plain u64 instead of cycle_t

2016-12-25 11:04:12 +01:00

timekeeping_debug.c

PM / timekeeping: Print debug messages when requested

2017-07-23 00:03:43 +02:00

timekeeping_internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

timekeeping.c

timekeeping: Add raw clock fallback for random_get_entropy()

2022-06-25 11:46:38 +02:00

timekeeping.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

timer_list.c

timer_list: Guard procfs specific code

2019-07-31 07:28:28 +02:00

timer.c

random32: make prandom_u32() output unpredictable

2020-11-18 18:28:00 +01:00