Re: [PATCH v7 01/15] sched/core: uclamp: Add CPU's clamp buckets refcounting
From: Peter Zijlstra <peterz@infradead.org>
Date: 2019-03-13 17:22:45
Also in:
linux-pm, lkml
From: Peter Zijlstra <peterz@infradead.org>
Date: 2019-03-13 17:22:45
Also in:
linux-pm, lkml
On Wed, Mar 13, 2019 at 04:12:29PM +0000, Patrick Bellasi wrote:
Yes, the for looks better, but perhaps like that:
unsigned int bucket_id = UCLAMP_BUCKETS;
/*
* Both min and max clamps are MAX aggregated, thus the topmost
* bucket with some tasks defines the rq's clamp value.
*/
for (; bucket_id >= 0; --bucket_id) {GCC will be clever and figure that unsigned will never be smaller than 0 and turn the above into an infinite loop or something daft. That is; use 'int', not 'unsigned int' for bucket_id.