linux-kernel - [PATCH v2 0/3] A few uclamp fixes

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Date:   Thu, 10 Jun 2021 15:13:03 +0000
From:   Quentin Perret <qperret@...gle.com>
To:     mingo@...hat.com, peterz@...radead.org, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, qais.yousef@....com, rickyiu@...gle.com,
        wvw@...gle.com, patrick.bellasi@...bug.net, xuewen.yan94@...il.com
Cc:     linux-kernel@...r.kernel.org, kernel-team@...roid.com,
        Quentin Perret <qperret@...gle.com>
Subject: [PATCH v2 0/3] A few uclamp fixes

Hi all,

This series groups together the v2 of a few patches I orignally sent
independently from each others:

  https://lore.kernel.org/r/20210609143339.1194238-1-qperret@google.com
  https://lore.kernel.org/r/20210609170132.1386495-1-qperret@google.com
  https://lore.kernel.org/r/20210609175901.1423553-1-qperret@google.com

But since they're all touching uclamp-related things, I figured I might
as well group them in a series.

The first one is a pure fix, and the two others change a bit the
sched_setattr behaviour for uclamp to make it more convenient to use,
and allow to put restrictions on the per-task API.

Changes since v1:
 - fixed the CAP_SYS_NICE check to handle the uclamp_{min,max} = -1
   cases correctly;
 - fixed commit message of UCLAMP_FLAG_IDLE patch.

Thanks,
Quentin

Quentin Perret (3):
  sched: Fix UCLAMP_FLAG_IDLE setting
  sched: Skip priority checks with SCHED_FLAG_KEEP_PARAMS
  sched: Make uclamp changes depend on CAP_SYS_NICE

 kernel/sched/core.c | 64 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 11 deletions(-)

-- 
2.32.0.272.g935e593368-goog