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[209.85.220.41]) by mx.google.com with SMTPS id o32sor17426162pld.12.2019.07.02.12.12.10 for (Google Transport Security); Tue, 02 Jul 2019 12:12:10 -0700 (PDT) Received-SPF: pass (google.com: domain of rientjes@google.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=KYjUX95h; spf=pass (google.com: domain of rientjes@google.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=rientjes@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=ustizs9nQ/dvH8f3l0VeRsX7a+gE2MyRDhi2ExuynrQ=; b=KYjUX95hqXNvTfv32exnncUWRJEABX4uz/Gycd9AFxTIST4OXEiGp4h81QjfCiwIH7 ycunBDhPiYn7b+bF4IYG/9nVqdpsTIUVKM6pP0OyRG8kCdFjOHAzw4Wa/lu6Z6d2u4d5 PaScNBBegnKeTlIExx5CGoRSHq4bnnGkAkH2VKz+Fgje571NP5805RomuRs3D20LQZkw lCxjPGH/aymTPbHLFypkVaN9qcfE5RKJIyQ6CyOAL/HkqGfWVZER54G9nOVrdbTFy8/g FXpYf6REqgjmdxuLG+qlfCONPcsujmuGvEVQeMm4pzqqYcntCojNNQfHWLZQALSjhCW3 8MHg== X-Google-Smtp-Source: APXvYqz4wXXllh26Sw2vwZ0czX/JHY7+mfDNBiC+q6EuLJRFW2nSu4csXD4xq7TUdIQ+mg9+YBbouQ== X-Received: by 2002:a17:902:9897:: with SMTP id s23mr36862985plp.47.1562094729587; Tue, 02 Jul 2019 12:12:09 -0700 (PDT) Received: from [2620:15c:17:3:3a5:23a7:5e32:4598] ([2620:15c:17:3:3a5:23a7:5e32:4598]) by smtp.gmail.com with ESMTPSA id l44sm3000865pje.29.2019.07.02.12.12.08 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 02 Jul 2019 12:12:08 -0700 (PDT) Date: Tue, 2 Jul 2019 12:12:07 -0700 (PDT) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Waiman Long cc: Christoph Lameter , Pekka Enberg , Joonsoo Kim , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michal Hocko , Roman Gushchin , Johannes Weiner , Shakeel Butt , Vladimir Davydov Subject: Re: [PATCH-next v2] mm, memcg: Add ":deact" tag for reparented kmem caches in memcg_slabinfo In-Reply-To: <20190627184324.5875-1-longman@redhat.com> Message-ID: References: <20190627184324.5875-1-longman@redhat.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, 27 Jun 2019, Waiman Long wrote: > With Roman's kmem cache reparent patch, multiple kmem caches of the same > type can be seen attached to the same memcg id. All of them, except > maybe one, are reparent'ed kmem caches. It can be useful to tag those > reparented caches by adding a new slab flag "SLAB_DEACTIVATED" to those > kmem caches that will be reparent'ed if it cannot be destroyed completely. > > For the reparent'ed memcg kmem caches, the tag ":deact" will now be > shown in /memcg_slabinfo. > > [v2: Set the flag in the common code as suggested by Roman.] > > Signed-off-by: Waiman Long > Reviewed-by: Shakeel Butt > Acked-by: Roman Gushchin Acked-by: David Rientjes