[GIT PULL] timer subsystem fixes
From: Ingo Molnar
Date: Sun Nov 01 2026 - 02:03:15 EST
Linus,
Please pull the latest timers/urgent Git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-2026-11-01
for you to fetch changes up to f322d7f7ae56bce728ba03a387e35380bc4ad939:
Misc timer fixes:
- Fix on-stack hrtimer cleanup in play_idle_precise(), and
add the hrtimer_on_stack cleanup class to facilitate the fix
(Hui Su)
- Fix clock_getres() system call's handling of NULL output
pointer in the !CONFIG_POSIX_TIMERS case (Hungyu Lin)
- Fix get_cpu_itimer() to return TICK_NSEC when the sampled CPU time
is exactly equal to the nonzero expiry (Hungyu Lin)
- Fix do_timens_ktime_to_host() time offset subtraction underflow
check (Hungyu Lin)
- Report zero remaining time for disarmed SIGEV_NONE posix timers,
and add a self-test to detect this bug in the future (Hung-Jui Lin)
- Fix NOHZ 'full kick' handling bug that can cause missed
tick updates (Peng Wang)
- Fix field access bug in the vdso/gettimeofday code that works
only by accident (Thomas Weißschuh)
- Fix & prevent immediate clocksource watchdog rerun after a delay
(Karl Mehltretter)
Thanks,
Ingo
------------------>
Hui Su (2):
hrtimer: Add cleanup class for on-stack timers
sched/idle: Use hrtimer cleanup class in play_idle_precise()
Hung-Jui Lin (2):
posix-timers: Report zero remaining time for disarmed SIGEV_NONE timers
selftests: timers: Add a test for disarmed SIGEV_NONE timers
Hungyu Lin (3):
posix-timers: Accept NULL clock_getres() output in stubs
timers/itimer: Keep a nonzero value at CPU timer expiry
time/namespace: Fix overflow when converting absolute deadlines
Karl Mehltretter (1):
clocksource: Prevent immediate watchdog rerun after a delay
Peng Wang (1):
tick/nohz: Reevaluate the tick for kicks flushed outside hardirq
Thomas Weißschuh (1):
vdso/gettimeofday: Correct the read of tz_minuteswest and tz_dsttime
include/linux/hrtimer.h | 24 +++++++++++++++
kernel/sched/idle.c | 16 ++++++----
kernel/time/clocksource.c | 2 +-
kernel/time/hrtimer.c | 8 +++--
kernel/time/itimer.c | 2 +-
kernel/time/namespace.c | 2 +-
kernel/time/posix-stubs.c | 4 +--
kernel/time/posix-timers.c | 25 ++++++++--------
kernel/time/tick-sched.c | 14 ++++++++-
lib/vdso/gettimeofday.c | 4 +--
tools/testing/selftests/timers/posix_timers.c | 43 ++++++++++++++++++++++++++-
11 files changed, 114 insertions(+), 30 deletions(-)