linux-kernel - Re: [PATCH v3] selftests: cgroup: fix test_kmem

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Date:   Fri, 4 Aug 2023 14:36:36 +0800
From:   Muchun Song <muchun.song@...ux.dev>
To:     Lucas Karpinski <lkarpins@...hat.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Shakeel Butt <shakeelb@...gle.com>, Tejun Heo <tj@...nel.org>,
        Zefan Li <lizefan.x@...edance.com>,
        Shuah Khan <shuah@...nel.org>, cgroups@...r.kernel.org,
        Linux-MM <linux-mm@...ck.org>, linux-kselftest@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] selftests: cgroup: fix test_kmem_basic slab1 check



> On Aug 4, 2023, at 02:25, Lucas Karpinski <lkarpins@...hat.com> wrote:
> 
> test_kmem_basic creates 100,000 negative dentries, with each one mapping
> to a slab object. After memory.high is set, these are reclaimed through
> the shrink_slab function call which reclaims all 100,000 entries. The
> test passes the majority of the time because when slab1 is calculated,
> it is often above 0, however, 0 is also an acceptable value.
> 
> Signed-off-by: Lucas Karpinski <lkarpins@...hat.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>

Thanks