Merge tag 'timers-core-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer core updates from Thomas Gleixner:

 - Prevent a thundering herd problem when the timekeeper CPU is delayed
   and a large number of CPUs compete to acquire jiffies_lock to do the
   update. Limit it to one CPU with a separate "uncontended" atomic
   variable.

 - A set of improvements for the timer migration mechanism:

     - Support imbalanced NUMA trees correctly

     - Support dynamic exclusion of CPUs from the migrator duty to allow
       the cpuset/isolation mechanism to exclude them from handling
       timers of remote idle CPUs

 - The usual small updates, cleanups and enhancements

* tag 'timers-core-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/migration: Exclude isolated cpus from hierarchy
  cpumask: Add initialiser to use cleanup helpers
  sched/isolation: Force housekeeping if isolcpus and nohz_full don't leave any
  cgroup/cpuset: Rename update_unbound_workqueue_cpumask() to update_isolation_cpumasks()
  timers/migration: Use scoped_guard on available flag set/clear
  timers/migration: Add mask for CPUs available in the hierarchy
  timers/migration: Rename 'online' bit to 'available'
  selftests/timers/nanosleep: Add tests for return of remaining time
  selftests/timers: Clean up kernel version check in posix_timers
  time: Fix a few typos in time[r] related code comments
  time: tick-oneshot: Add missing Return and parameter descriptions to kernel-doc
  hrtimer: Store time as ktime_t in restart block
  timers/migration: Remove dead code handling idle CPU checking for remote timers
  timers/migration: Remove unused "cpu" parameter from tmigr_get_group()
  timers/migration: Assert that hotplug preparing CPU is part of stable active hierarchy
  timers/migration: Fix imbalanced NUMA trees
  timers/migration: Remove locking on group connection
  timers/migration: Convert "while" loops to use "for"
  tick/sched: Limit non-timekeeper CPUs calling jiffies update

1 files changed, 4 insertions, 4 deletions

diff --git a/include/linux/delay.h b/include/linux/delay.h
index 89866bab100d..46412c00033a 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -68,7 +68,7 @@ void usleep_range_state(unsigned long min, unsigned long max,
  * @min:	Minimum time in microseconds to sleep
  * @max:	Maximum time in microseconds to sleep
  *
- * For basic information please refere to usleep_range_state().
+ * For basic information please refer to usleep_range_state().
  *
  * The task will be in the state TASK_UNINTERRUPTIBLE during the sleep.
  */
@@ -82,10 +82,10 @@ static inline void usleep_range(unsigned long min, unsigned long max)
  * @min:	Minimum time in microseconds to sleep
  * @max:	Maximum time in microseconds to sleep
  *
- * For basic information please refere to usleep_range_state().
+ * For basic information please refer to usleep_range_state().
  *
  * The sleeping task has the state TASK_IDLE during the sleep to prevent
- * contribution to the load avarage.
+ * contribution to the load average.
  */
 static inline void usleep_range_idle(unsigned long min, unsigned long max)
 {
@@ -96,7 +96,7 @@ static inline void usleep_range_idle(unsigned long min, unsigned long max)
  * ssleep - wrapper for seconds around msleep
  * @seconds:	Requested sleep duration in seconds
  *
- * Please refere to msleep() for detailed information.
+ * Please refer to msleep() for detailed information.
  */
 static inline void ssleep(unsigned int seconds)
 {