Wen Yang 61f27ba2dd timekeeping: Prevent 32bit truncation in scale64_check_overflow() ...

[ Upstream commit 4cbbc3a0eeed675449b1a4d080008927121f3da3 ]

While unlikely the divisor in scale64_check_overflow() could be >= 32bit in
scale64_check_overflow(). do_div() truncates the divisor to 32bit at least
on 32bit platforms.

Use div64_u64() instead to avoid the truncation to 32-bit.

[ tglx: Massaged changelog ]

Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200120100523.45656-1-wenyang@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-10-01 20:40:09 +02:00

..

alarmtimer.c

alarmtimer: Change remaining ENOTSUPP to EOPNOTSUPP

2019-11-10 11:23:32 +01:00

clockevents.c

clockevents: Make clockevents_subsys static

2016-07-19 10:48:06 +02:00

clocksource.c

clocksource: Prevent double add_timer_on() for watchdog_timer

2020-02-14 16:31:08 -05:00

hrtimer.c

hrtimer: Annotate lockless access to timer->state

2020-01-04 13:41:08 +01:00

itimer.c

itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper

2016-01-17 11:13:55 +01:00

jiffies.c

jiffies: Use CLOCKSOURCE_MASK instead of constant

2016-02-27 08:55:31 +01:00

Kconfig

rcu: Drop RCU_USER_QS in favor of NO_HZ_FULL

2015-07-06 13:52:18 -07:00

Makefile

time: Remove development rules from Kbuild/Makefile

2015-07-01 09:57:35 +02:00

ntp_internal.h

ntp: Fix second_overflow's input parameter type to be 64bits

2015-12-16 16:50:56 -08:00

ntp.c

ntp: Limit TAI-UTC offset

2019-08-04 09:33:21 +02:00

posix-clock.c

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

2020-05-20 08:15:32 +02:00

posix-cpu-timers.c

posix-timers: Sanitize overrun handling

2018-11-10 07:43:01 -08:00

posix-timers.c

posix-timers: Sanitize overrun handling

2018-11-10 07:43:01 -08:00

sched_clock.c

timers, sched_clock: Update timeout for clock wrap

2018-03-22 09:17:42 +01:00

test_udelay.c

time: Avoid timespec in udelay_test

2016-06-20 12:47:26 -07:00

tick-broadcast-hrtimer.c

tick/broadcast-hrtimer: Set name of the ce_broadcast_hrtimer

2016-07-05 17:02:19 +02:00

tick-broadcast.c

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

2018-05-22 16:57:58 +02:00

tick-common.c

clockevents: Remove unused set_mode() callback

2015-09-14 11:00:55 +02:00

tick-internal.h

timers: Forward the wheel clock whenever possible

2016-07-07 10:35:11 +02:00

tick-oneshot.c

clockevents: Provide functions to set and get the state

2015-06-02 14:40:47 +02:00

tick-sched.c

nohz: Fix local_timer_softirq_pending()

2018-08-09 12:17:57 +02:00

tick-sched.h

timers/nohz: Convert tick dependency mask to atomic_t

2016-03-29 11:52:11 +02:00

time.c

time: Introduce jiffies64_to_nsecs()

2018-10-10 08:53:18 +02:00

timeconst.bc

time: Introduce jiffies64_to_nsecs()

2018-10-10 08:53:18 +02:00

timeconv.c

time: Add time64_to_tm()

2016-06-20 12:47:15 -07:00

timecounter.c

…

timekeeping_debug.c

timekeeping: Use deferred printk() in debug code

2017-02-23 17:44:36 +01:00

timekeeping_internal.h

clocksource: Make clocksource validation work for all clocksources

2015-12-19 15:59:57 +01:00

timekeeping.c

timekeeping: Prevent 32bit truncation in scale64_check_overflow()

2020-10-01 20:40:09 +02:00

timekeeping.h

hrtimer: Make offset update smarter

2015-04-22 17:06:49 +02:00

timer_list.c

timer_list: Guard procfs specific code

2019-08-04 09:33:21 +02:00

timer_stats.c

timer/debug: Change /proc/timer_stats from 0644 to 0600

2019-05-10 17:52:11 +02:00

timer.c

random32: update the net random state on interrupt and activity

2020-08-21 11:01:52 +02:00