On 4/15/21 3:33 AM, Ming Lei wrote:

 /**
- * percpu_ref_tryget_live - try to increment a live percpu refcount
+ * percpu_ref_tryget_many_live - try to increment a live percpu refcount
  * @ref: percpu_ref to try-get
+ * @nr: number of references to get

You may want to change "increment" into "increase" to make it more clear
that this function may increase the percpu refcount by more than one.

Anyway:

Reviewed-by: Bart Van Assche <bvanassche@acm.org>