posix-timers: Add comments about timer lookup

Document how the timer ID validation in the hash table works.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.091081515@linutronix.de
This commit is contained in:
Thomas Gleixner 2023-04-25 20:49:03 +02:00
commit ae88967d71