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linux-stable/kernel/time
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Thomas Gleixner 9f24c540f7 lib/vdso: Update coarse timekeeper unconditionally 
The low resolution parts of the VDSO, i.e.:

  clock_gettime(CLOCK_*_COARSE), clock_getres(), time()

can be used even if there is no VDSO capable clocksource.

But if an architecture opts out of the VDSO data update then this
information becomes stale. This affects ARM when there is no architected
timer available. The lack of update causes userspace to use stale data
forever.

Make the update of the low resolution parts unconditional and only skip
the update of the high resolution parts if the architecture requests it.

Fixes: 44f57d788e ("timekeeping: Provide a generic update_vsyscall() implementation")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20200114185946.765577901@linutronix.de
2020-01-17 15:53:50 +01:00
..
alarmtimer.c Power management updates for 5.4-rc1 2019-09-17 19:15:14 -07:00
clockevents.c tick: Remove outgoing CPU from broadcast masks 2019-03-23 18:26:43 +01:00
clocksource.c clocksource: Move inline keyword to the beginning of function declarations 2019-06-14 17:04:03 +02:00
hrtimer.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 12:20:25 -08:00
itimer.c y2038: alarm: fix half-second cut-off 2019-11-25 21:52:35 +01:00
jiffies.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-06 14:50:46 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile timekeeping: Provide a generic update_vsyscall() implementation 2019-06-22 21:21:06 +02:00
ntp.c ntp/y2038: Remove incorrect time_t truncation 2019-11-12 08:13:44 +01:00
ntp_internal.h ntp: Audit NTP parameters adjustment 2019-04-15 18:14:01 -04:00
posix-clock.c ptp: fix the race between the release of ptp_clock and cdev 2019-12-30 20:19:27 -08:00
posix-cpu-timers.c posix-cpu-timers: Fix two trivial comments 2019-10-23 14:48:24 +02:00
posix-stubs.c time/posix-stubs: Provide compat itimer supoprt for alpha 2020-01-09 18:20:23 +01:00
posix-timers.c hrtimer: Improve comments on handling priority inversion against softirq kthread 2019-08-20 22:05:46 +02:00
posix-timers.h posix-timers: Use a callback for cancel synchronization on PREEMPT_RT 2019-08-20 22:05:46 +02:00
sched_clock.c timers/sched_clock: Include local timekeeping.h for missing declarations 2019-10-23 14:48:23 +02:00
test_udelay.c time/debug: Remove license boilerplate 2018-11-23 11:51:21 +01:00
tick-broadcast-hrtimer.c tick: broadcast-hrtimer: Fix a race in bc_set_next 2019-09-27 14:45:55 +02:00
tick-broadcast.c tick: Fix typos in comments 2019-04-19 19:17:04 +02:00
tick-common.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-06 14:50:46 -07:00
tick-internal.h tick: Remove outgoing CPU from broadcast masks 2019-03-23 18:26:43 +01:00
tick-oneshot.c hrtimers/tick/clockevents: Remove sloppy license references 2018-11-23 11:51:21 +01:00
tick-sched.c tick/sched: Annotate lockless access to last_jiffies_update 2020-01-15 10:54:12 +01:00
tick-sched.h tick/sched: Update tick_sched struct documentation 2019-03-24 20:29:32 +01:00
time.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 12:20:25 -08:00
timeconst.bc time: Add SPDX license identifiers 2018-11-23 11:51:20 +01:00
timeconv.c time: Add SPDX license identifiers 2018-11-23 11:51:20 +01:00
timecounter.c time: Remove license boilerplate 2018-11-23 11:51:21 +01:00
timekeeping.c timekeeping/vsyscall: Prevent math overflow in BOOTTIME update 2019-08-23 02:12:11 +02:00
timekeeping.h timers/sched_clock: Prevent generic sched_clock wrap caused by tick_freeze() 2019-04-18 14:34:53 +02:00
timekeeping_debug.c timekeeping/debug: No need to check return value of debugfs_create functions 2019-01-29 20:08:41 +01:00
timekeeping_internal.h timekeeping/ntp: Constify some function arguments 2018-07-19 17:08:05 -07:00
timer.c timer: Read jiffies once when forwarding base clk 2019-09-19 17:50:11 +02:00
timer_list.c timer_list: Guard procfs specific code 2019-06-23 00:08:52 +02:00
vsyscall.c lib/vdso: Update coarse timekeeper unconditionally 2020-01-17 15:53:50 +01:00