Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Kamil Konieczny <k.konieczny@samsung.com>
To:     k.konieczny@samsung.com
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>
Subject: [PATCH v2 0/3] devfreq: improve devfreq statistics counting
Date:   Wed,  4 Dec 2019 16:00:15 +0100
Message-Id: <20191204150018.5234-1-k.konieczny@samsung.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"
CMS-TYPE: 201P
References: <CGME20191204150032eucas1p1c10713b3308e45e086dd66099057e2b6@eucas1p1.samsung.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi,

this patch series tries to improve devfreq statistics:

- do conversion to use 64-bit jiffies for storing elapsed time and prevent
  counters overflow,

- add ability to reset statistics using sysfs,

- move statistics data to separate structure for improved code
  readability and maintenance.

Changes in v2:
- added Acked-by to first patch
- dropped spinlock patch, there is mutex used for protecting stats data
- rewrite clearing statistics, suggested by Chanwoo Choi: reuse
  trans_stats sysfs file, any write to it will clear devfreq stats
- dropped change var name last_stat_updated
- squashed three last patches into one, as it turned out that freq_table
  from devfreq_profile is used by other drivers
- rebased on linux-next

Kamil Konieczny (3):
  devfreq: change time stats to 64-bit
  devfreq: add clearing transitions stats
  devfreq: move statistics to separate struct

 drivers/devfreq/devfreq.c | 86 +++++++++++++++++++++++++++------------
 include/linux/devfreq.h   | 31 ++++++++++----
 2 files changed, 81 insertions(+), 36 deletions(-)

-- 
2.24.0