linux-kernel - Re: [PATCH v4 4/4] sched/fair: Kill wake

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: <20200207111904.GC239598@google.com>
Date:   Fri, 7 Feb 2020 11:19:04 +0000
From:   Quentin Perret <qperret@...gle.com>
To:     Valentin Schneider <valentin.schneider@....com>
Cc:     linux-kernel@...r.kernel.org, mingo@...hat.com,
        peterz@...radead.org, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, morten.rasmussen@....com,
        adharmap@...eaurora.org, pkondeti@...eaurora.org
Subject: Re: [PATCH v4 4/4] sched/fair: Kill wake_cap()

On Thursday 06 Feb 2020 at 19:19:57 (+0000), Valentin Schneider wrote:
> From: Morten Rasmussen <morten.rasmussen@....com>
> 
> Capacity-awareness in the wake-up path previously involved disabling
> wake_affine in certain scenarios. We have just made select_idle_sibling()
> capacity-aware, so this isn't needed anymore.
> 
> Remove wake_cap() entirely.
> 
> Signed-off-by: Morten Rasmussen <morten.rasmussen@....com>
> [Changelog tweaks]
> Signed-off-by: Valentin Schneider <valentin.schneider@....com>

Reviewed-by: Quentin Perret <qperret@...gle.com>

I wanted to suggest removing the CA code from update_sg_wakeup_stats()
which is now called only on fork/exec, but I suppose we still want it
for util_clamp, so n/m.

Thanks for the series,
Quentin