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Fri, 20 Aug 2021 04:42:18 -0700 (PDT) MIME-Version: 1.0 References: <1629417219-74853-1-git-send-email-wang.yong12@zte.com.cn> In-Reply-To: <1629417219-74853-1-git-send-email-wang.yong12@zte.com.cn> From: Shakeel Butt Date: Fri, 20 Aug 2021 04:42:07 -0700 Message-ID: Subject: Re: [PATCH v2] mm: Add configuration to control whether vmpressure notifier is enabled To: yongw.pur@gmail.com Cc: Tejun Heo , Jonathan Corbet , Andrew Morton , Michal Hocko , Vladimir Davydov , Thomas Gleixner , "Peter Zijlstra (Intel)" , Roman Gushchin , alexs@kernel.org, Wei Yang , Hui Su , Stephen Rothwell , wang.yong12@zte.com.cn, Cgroups , linux-doc@vger.kernel.org, LKML , Linux MM , yang.yang29@zte.com.cn, wangyong Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: DD3451906 X-Stat-Signature: 8wko4sm61n5gpiz6ikqk16m86hfrkx4b Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=google.com header.s=20161025 header.b=RQV3qkbR; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf22.hostedemail.com: domain of shakeelb@google.com designates 209.85.208.177 as permitted sender) smtp.mailfrom=shakeelb@google.com X-HE-Tag: 1629459740-781104 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, Aug 19, 2021 at 4:54 PM wrote: > > From: wangyong > > Inspired by PSI features, vmpressure inotifier function should > also be configured to decide whether it is used, because it is an > independent feature which notifies the user of memory pressure. > It is also used by the networking stack to check memory pressure. See mem_cgroup_under_socket_pressure().