tick: Document protections for tick related data

The protection rules for tick_next_period and last_jiffies_update are blury
at best. Clarify this.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201117132006.197713794@linutronix.de
This commit is contained in:
Thomas Gleixner 2020-11-17 14:19:44 +01:00
commit c398960cd8
2 changed files with 6 additions and 2 deletions