kthread: Document kthread_affine_preferred()

The documentation of this new API has been overlooked during its
introduction. Fill the gap.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Marco Crivellari <marco.crivellari@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
This commit is contained in:
Frederic Weisbecker 2025-08-26 17:16:48 +02:00
commit d279138a27