Jason A. Donenfeld 96ba981f09 timekeeping: contribute wall clock to rng on time change ... [ Upstream commit b8ac29b401 ] The rng's random_init() function contributes the real time to the rng at boot time, so that events can at least start in relation to something particular in the real world. But this clock might not yet be set that point in boot, so nothing is contributed. In addition, the relation between minor clock changes from, say, NTP, and the cycle counter is potentially useful entropic data. This commit addresses this by mixing in a time stamp on calls to settimeofday and adjtimex. No entropy is credited in doing so, so it doesn't make initialization faster, but it is still useful input to have. Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-08-17 14:24:24 +02:00
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Kconfig	-----BEGIN PGP SIGNATURE-----	2021-06-29 12:31:16 -07:00
Makefile	time: Improve performance of time64_to_tm()	2021-06-24 11:51:59 +02:00
alarmtimer.c	alarmtimer: Check RTC features instead of ops	2021-05-11 21:28:04 +02:00
clockevents.c	clockevents: Use list_move() instead of list_del()/list_add()	2021-06-22 17:16:46 +02:00
clocksource-wdtest.c	clocksource: Make clocksource watchdog test safe for slow-HZ systems	2021-08-28 17:01:32 +02:00
clocksource.c	clocksource: Avoid accidental unstable marking of clocksources	2022-01-27 11:04:08 +01:00
hrtimer.c	wireguard: ratelimiter: use hrtimer in selftest	2022-08-17 14:23:37 +02:00
itimer.c	time: Prevent undefined behaviour in timespec64_to_ns()	2020-10-26 11:48:11 +01:00
jiffies.c	clocksource: Make clocksource watchdog test safe for slow-HZ systems	2021-08-28 17:01:32 +02:00
namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
ntp.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
ntp_internal.h	ntp: Make the RTC synchronization more reliable	2020-12-11 10:40:52 +01:00
posix-clock.c	posix-clocks: Rename the clock_get() callback to clock_get_timespec()	2020-01-14 12:20:49 +01:00
posix-cpu-timers.c	posix-cpu-timers: Clear task::posix_cputimers_work in copy_process()	2021-11-18 19:17:14 +01:00
posix-stubs.c	posix-timers: Make clock_nanosleep() time namespace aware	2020-01-14 12:20:55 +01:00
posix-timers.c	fix race between exit_itimers() and /proc/pid/timers	2022-07-21 21:24:11 +02:00
posix-timers.h	posix-clocks: Introduce clock_get_ktime() callback	2020-01-14 12:20:51 +01:00
sched_clock.c	time/sched_clock: Mark sched_clock_read_begin/retry() as notrace	2020-10-26 11:34:31 +01:00
test_udelay.c	time/debug: Remove dentry pointer for debugfs	2021-03-18 11:20:26 +01:00
tick-broadcast-hrtimer.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
tick-broadcast.c	timer_list: Print name of per-cpu wakeup device	2021-05-31 17:04:49 +02:00
tick-common.c	timekeeping: Distangle resume and clock-was-set events	2021-08-10 17:57:23 +02:00
tick-internal.h	clocksource: Make clocksource watchdog test safe for slow-HZ systems	2021-08-28 17:01:32 +02:00
tick-legacy.c	timekeeping: remove xtime_update	2020-10-30 21:57:07 +01:00
tick-oneshot.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
tick-sched.c	tick/nohz: unexport __init-annotated tick_nohz_full_setup()	2022-07-02 16:41:12 +02:00
tick-sched.h	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
time.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00
time_test.c	time/kunit: Add missing MODULE_LICENSE()	2021-06-28 07:40:23 +02:00
timeconst.bc	time: Add SPDX license identifiers	2018-11-23 11:51:20 +01:00
timeconv.c	time: Improve performance of time64_to_tm()	2021-06-24 11:51:59 +02:00
timecounter.c	time/timecounter: Mark 1st argument of timecounter_cyc2time() as const	2021-04-16 21:03:50 +02:00
timekeeping.c	timekeeping: contribute wall clock to rng on time change	2022-08-17 14:24:24 +02:00
timekeeping.h	asm-generic: cross-architecture timer cleanup	2020-12-16 00:07:17 -08:00
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/vsyscall: Provide vdso_update_begin/end()	2020-08-06 10:57:30 +02:00
timer.c	timers: Fix warning condition in __run_timers()	2022-04-20 09:34:21 +02:00
timer_list.c	timer_list: Print name of per-cpu wakeup device	2021-05-31 17:04:49 +02:00
vsyscall.c	timekeeping, clocksource: Fix various typos in comments	2021-03-22 23:06:48 +01:00