linux-kernel - Re: [PATCH v2] misc_cgroup: use a counter to count the number of failures

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Date:   Fri, 13 Aug 2021 18:16:49 -0700
From:   Vipin Sharma <vipinsh@...gle.com>
To:     brookxu <brookxu.cn@...il.com>
Cc:     tj@...nel.org, lizefan.x@...edance.com, hannes@...xchg.org,
        linux-kernel@...r.kernel.org, cgroups@...r.kernel.org
Subject: Re: [PATCH v2] misc_cgroup: use a counter to count the number of failures

On Fri, Aug 13, 2021 at 5:15 PM brookxu <brookxu.cn@...il.com> wrote:
>
> From: Chunguang Xu <brookxu@...cent.com>
>
> For a container, we only print an error log when the resource
> charge fails. There may be some problems here:
>
> 1. If a large number of containers are created and deleted,
>    there will be a lot of error logs.
> 2. According to an error log, we cannot better understand
>    the actual pressure of resources.
>
> Therefore, perhaps we should use a failcnt counter to count
> the number of failures, so that we can easily understand the
> actual pressure of resources and avoid too many error log..
>
> v2: rename failcnt to nr_fails.
>
> Signed-off-by: Chunguang Xu <brookxu@...cent.com>
> ---
>  include/linux/misc_cgroup.h |  4 ++--
>  kernel/cgroup/misc.c        | 37 ++++++++++++++++++++++++++++++-------
>  2 files changed, 32 insertions(+), 9 deletions(-)
>

Acked-by: Vipin Sharma <vipinsh@...gle.com>