linux-kernel - Re: [PATCH v7 0/3] Move pm_runtime accounted time to raw nsec

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <2577730.BvIW2u5g9k@aspire.rjw.lan>
Date:   Thu, 31 Jan 2019 00:50:44 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Vincent Guittot <vincent.guittot@...aro.org>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        thara.gopinath@...aro.org, linux@...ck-us.net,
        ulf.hansson@...aro.org
Subject: Re: [PATCH v7 0/3] Move pm_runtime accounted time to raw nsec

On Wednesday, January 23, 2019 8:50:12 AM CET Vincent Guittot wrote:
> Move pm_runtime accounted time to raw nsec. The subject of the patchset
> has changed as 1st patch o the previous versions has been queued by
> Rafael.
> 
> Patch 1 set accounting_timestamp to 0 in pm_runtime_init and update it when enable.
> So we remove ordering constraint between timekeeping_init and pm_runtime_init
> 
> Patch 2 moves time accounting on raw ns. This patch initially used
> ktime instead of raw ns but it was easier to move i915 driver on raw ns
> than on ktime.
> 
> Change since v6:
> - move code that set accounting_timestamp in pm_runtime_enable
> 
> Changes since v5:
> - removed patches already queued.
> - set accounting_timestamp to 0 in pm_runtime_init and update it when enable
> 
> Changes since v4:
> -Update commit message
> 
> Changes since v3:
> - Rebase on v4.20-rc7 without patch that has been queued by Rafael
> - Simplify the new interface pm_runtime_suspended_time()
> 
> Changes since v2:
> - remove patch1 that has been queued by rafael
> - add new interface in pm_runtime to get accounted time
> - reorder patchset to prevent compilation error
> 
> Changes since v1:
> - updated commit message of patch 1
> - Added patches 2 & 3 to move runtime_pm accounting on raw ns
>   
> Thara Gopinath (1):
>   PM-runtime: Replace jiffies based accounting with ktime-based
>     accounting
> 
> Vincent Guittot (1):
>   PM-runtime: update accounting_timestamp only when enable
> 
>  drivers/base/power/runtime.c | 26 ++++++++++++++++----------
>  drivers/base/power/sysfs.c   | 11 ++++++++---
>  include/linux/pm.h           |  6 +++---
>  3 files changed, 27 insertions(+), 16 deletions(-)

Both patches applied, thanks!