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s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=RASqUJNJKvi6chUPf50pDvBaP0SIK/nJTpfi9HQbRPo=; b=V1+aqX8DQFJ2BpYcyQZHznieo7qkPcwnsooN9lHybB7dGIUN9FF2yp04yQMujov63z J7Kc21LYjftjIx6eoe8qiJ+x8qjCfBIhS753cR0l41KZJXmrmxlnzG4IqnaHjWIM9txQ fS3NO94HdJJSjn9h7JjyOQZWJnYDbHPhZaQ08hNijRlyZDOLQ93/dFQVcoCNuRXB6rma XgQPdVjKhO7amsck8rWKItIU39XVPfA+2tad15KtPnCA0vGDT9Q7Hw2QfcpIgc/ERGcE zahmKg0EAutKiGPsjaxKKerO20l4vFFtRsYhSPizVu42vSPOPboMv/LnGYsF+mf9wqzW 9isw== X-Gm-Message-State: AOAM53135HnujoGoK8OEBqjKcX1VEK4Scbwh+HizdJBb9aqGdE2x+I7+ 6HEcAjbPooZQKxJiCDgcYStG/ws+JzCsTVnt6qxJDg== X-Google-Smtp-Source: ABdhPJys23/+YRk8+SWODCOySRzNS6wzVDGMHd5o0Sx6XZMCYCGNhQs7SiVfRrJce26QPi4Bs7RcuMTmiR/nZOLO6yY= X-Received: by 2002:a05:6512:482:: with SMTP id v2mr13935646lfq.3.1592963029804; Tue, 23 Jun 2020 18:43:49 -0700 (PDT) MIME-Version: 1.0 References: <20200623174037.3951353-1-guro@fb.com> <20200623174037.3951353-11-guro@fb.com> In-Reply-To: <20200623174037.3951353-11-guro@fb.com> From: Shakeel Butt Date: Tue, 23 Jun 2020 18:43:38 -0700 Message-ID: Subject: Re: [PATCH v7 10/19] mm: memcg/slab: deprecate memory.kmem.slabinfo To: Roman Gushchin Cc: Andrew Morton , Christoph Lameter , Johannes Weiner , Michal Hocko , Linux MM , Vlastimil Babka , Kernel Team , LKML Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: BF67A18140B60 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.037643, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jun 23, 2020 at 10:40 AM Roman Gushchin wrote: > > Deprecate memory.kmem.slabinfo. > > An empty file will be presented if corresponding config options are > enabled. > > The interface is implementation dependent, isn't present in cgroup v2, and > is generally useful only for core mm debugging purposes. In other words, > it doesn't provide any value for the absolute majority of users. > > A drgn-based replacement can be found in tools/cgroup/slabinfo.py . tools/cgroup/memcg_slabinfo.py*