From: Andrew Morton <akpm@linux-foundation.org>
To: Waiman Long <longman@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Tejun Heo <tj@kernel.org>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
linux-mm@kvack.org, Shakeel Butt <shakeelb@google.com>
Subject: Re: [PATCH] memcg: Add kmem.slabinfo to v2 for debugging purpose
Date: Wed, 26 Jun 2019 15:25:53 -0700 [thread overview]
Message-ID: <20190626152553.6f9178a0361e699a5d53e360@linux-foundation.org> (raw)
In-Reply-To: <20190626165614.18586-1-longman@redhat.com>
On Wed, 26 Jun 2019 12:56:14 -0400 Waiman Long <longman@redhat.com> wrote:
> With memory cgroup v1, there is a kmem.slabinfo file that can be
> used to view what slabs are allocated to the memory cgroup. There
> is currently no such equivalent in memory cgroup v2. This file can
> be useful for debugging purpose.
>
> This patch adds an equivalent kmem.slabinfo to v2 with the caveat that
> this file will only show up as ".__DEBUG__.memory.kmem.slabinfo" when the
> "cgroup_debug" parameter is specified in the kernel boot command line.
> This is to avoid cluttering the cgroup v2 interface with files that
> are seldom used by end users.
>
> ...
>
> mm/memcontrol.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
A change to the kernel's user interface triggers a change to the
kernel's user interface documentation. This should be automatic by
now :(
next prev parent reply other threads:[~2019-06-26 22:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-26 16:56 Waiman Long
2019-06-26 22:25 ` Andrew Morton [this message]
2019-06-27 13:47 ` Waiman Long
2019-06-27 14:20 ` Tejun Heo
2019-06-27 20:59 ` Waiman Long
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