linux-kernel - Re: [PATCH v2] sched: RT bandwidth interface for cgroup unified hierarchy

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: <862ed496-921f-b21e-48e8-123422b33b4a@infradead.org>
Date:   Tue, 21 Jun 2022 19:06:50 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Chengming Zhou <zhouchengming@...edance.com>, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, tj@...nel.org,
        lizefan.x@...edance.com, hannes@...xchg.org, corbet@....net
Cc:     cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] sched: RT bandwidth interface for cgroup unified
 hierarchy



On 6/21/22 18:55, Chengming Zhou wrote:
> We need to run RT threads in cgroup unified hierarchy, but we can't
> since the default rt_bandwidth.rt_runtime of non-root task_group is 0
> and we haven't interface to update it.
> 
> This patch add RT bandwidth interface "cpu.max.rt" and update the
> documentation accordingly.
> 
> Signed-off-by: Chengming Zhou<zhouchengming@...edance.com>
> ---
> v2:
>   - minor fix for documentation per Randy's review. Thanks.

Documentation changes look good. Thanks.

> ---
>   Documentation/admin-guide/cgroup-v2.rst | 13 +++++++++++
>   kernel/sched/core.c                     | 31 +++++++++++++++++++++++++
>   kernel/sched/rt.c                       |  2 +-
>   kernel/sched/sched.h                    |  1 +
>   4 files changed, 46 insertions(+), 1 deletion(-)