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Diffstat (limited to 'kernel/time/timekeeping.c')
-rw-r--r--kernel/time/timekeeping.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 8a364aa9881a..b348749a9fc6 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1323,8 +1323,8 @@ out:
write_seqcount_end(&tk_core.seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
- /* signal hrtimers about time change */
- clock_was_set();
+ /* Signal hrtimers about time change */
+ clock_was_set(CLOCK_SET_WALL);
if (!ret)
audit_tk_injoffset(ts_delta);
@@ -1371,8 +1371,8 @@ error: /* even if we error out, we forwarded the time, so call update */
write_seqcount_end(&tk_core.seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
- /* signal hrtimers about time change */
- clock_was_set();
+ /* Signal hrtimers about time change */
+ clock_was_set(CLOCK_SET_WALL);
return ret;
}
@@ -1746,8 +1746,8 @@ void timekeeping_inject_sleeptime64(const struct timespec64 *delta)
write_seqcount_end(&tk_core.seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
- /* signal hrtimers about time change */
- clock_was_set();
+ /* Signal hrtimers about time change */
+ clock_was_set(CLOCK_SET_WALL | CLOCK_SET_BOOT);
}
#endif
@@ -1810,8 +1810,10 @@ void timekeeping_resume(void)
touch_softlockup_watchdog();
+ /* Resume the clockevent device(s) and hrtimers */
tick_resume();
- hrtimers_resume();
+ /* Notify timerfd as resume is equivalent to clock_was_set() */
+ timerfd_resume();
}
int timekeeping_suspend(void)
@@ -2125,7 +2127,7 @@ static u64 logarithmic_accumulation(struct timekeeper *tk, u64 offset,
* timekeeping_advance - Updates the timekeeper to the current time and
* current NTP tick length
*/
-static void timekeeping_advance(enum timekeeping_adv_mode mode)
+static bool timekeeping_advance(enum timekeeping_adv_mode mode)
{
struct timekeeper *real_tk = &tk_core.timekeeper;
struct timekeeper *tk = &shadow_timekeeper;
@@ -2196,9 +2198,8 @@ static void timekeeping_advance(enum timekeeping_adv_mode mode)
write_seqcount_end(&tk_core.seq);
out:
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
- if (clock_set)
- /* Have to call _delayed version, since in irq context*/
- clock_was_set_delayed();
+
+ return !!clock_set;
}
/**
@@ -2207,7 +2208,8 @@ out:
*/
void update_wall_time(void)
{
- timekeeping_advance(TK_ADV_TICK);
+ if (timekeeping_advance(TK_ADV_TICK))
+ clock_was_set_delayed();
}
/**
@@ -2387,8 +2389,9 @@ int do_adjtimex(struct __kernel_timex *txc)
{
struct timekeeper *tk = &tk_core.timekeeper;
struct audit_ntp_data ad;
- unsigned long flags;
+ bool clock_set = false;
struct timespec64 ts;
+ unsigned long flags;
s32 orig_tai, tai;
int ret;
@@ -2423,6 +2426,7 @@ int do_adjtimex(struct __kernel_timex *txc)
if (tai != orig_tai) {
__timekeeping_set_tai_offset(tk, tai);
timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
+ clock_set = true;
}
tk_update_leap_state(tk);
@@ -2433,10 +2437,10 @@ int do_adjtimex(struct __kernel_timex *txc)
/* Update the multiplier immediately if frequency was set directly */
if (txc->modes & (ADJ_FREQUENCY | ADJ_TICK))
- timekeeping_advance(TK_ADV_FREQ);
+ clock_set |= timekeeping_advance(TK_ADV_FREQ);
- if (tai != orig_tai)
- clock_was_set();
+ if (clock_set)
+ clock_was_set(CLOCK_REALTIME);
ntp_notify_cmos_timer();