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Subject: Re: [PATCH v3] selftests: cgroup: fix test_kmem_basic slab1 check
From:   Muchun Song <muchun.song@linux.dev>
In-Reply-To: <zff2gqiy4cggy4px2hbcyna6eipy56qc4itx5cx5agtxlzdxt7@dvfdarqkucac>
Date:   Fri, 4 Aug 2023 14:36:36 +0800
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Michal Hocko <mhocko@kernel.org>,
        Roman Gushchin <roman.gushchin@linux.dev>,
        Shakeel Butt <shakeelb@google.com>, Tejun Heo <tj@kernel.org>,
        Zefan Li <lizefan.x@bytedance.com>,
        Shuah Khan <shuah@kernel.org>, cgroups@vger.kernel.org,
        Linux-MM <linux-mm@kvack.org>, linux-kselftest@vger.kernel.org,
        LKML <linux-kernel@vger.kernel.org>
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Message-Id: <22339C68-8BCA-4CB4-895B-9FE679D4D34B@linux.dev>
References: <zff2gqiy4cggy4px2hbcyna6eipy56qc4itx5cx5agtxlzdxt7@dvfdarqkucac>
To:     Lucas Karpinski <lkarpins@redhat.com>
Precedence: bulk


> On Aug 4, 2023, at 02:25, Lucas Karpinski <lkarpins@redhat.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@redhat.com>

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

Thanks