Merge tag 'timers-urgent-2026-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:

- Fix auxiliary timekeeper update & locking bug

- Reduce the sensitivity of the clocksource watchdog,
to fix false positive measurements that marked the
TSC clocksource unstable

* tag 'timers-urgent-2026-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource: Reduce watchdog readout delay limit to prevent false positives
timekeeping: Adjust the leap state for the correct auxiliary timekeeper

kernel/time/clocksource.c

···
 
 static enum wd_read_status cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
 {
-	int64_t md = 2 * watchdog->uncertainty_margin;
+	int64_t md = watchdog->uncertainty_margin;
 	unsigned int nretries, max_retries;
 	int64_t wd_delay, wd_seq_delay;
 	u64 wd_end, wd_end2;

kernel/time/timekeeping.c

···
 		timekeeping_update_from_shadow(tkd, TK_CLOCK_WAS_SET);
 		result->clock_set = true;
 	} else {
-		tk_update_leap_state_all(&tk_core);
+		tk_update_leap_state_all(tkd);
 	}
 
 	/* Update the multiplier immediately if frequency was set directly */