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Fri, 24 Nov 2023 20:11:10 -0800 (PST) Date: Sat, 25 Nov 2023 04:11:07 +0000 In-Reply-To: <20231123193937.11628-2-ddrokosov@salutedevices.com> Mime-Version: 1.0 References: <20231123193937.11628-1-ddrokosov@salutedevices.com> <20231123193937.11628-2-ddrokosov@salutedevices.com> Message-ID: <20231125041107.wgpskqegywpt7l2o@google.com> Subject: Re: [PATCH v3 1/2] mm: memcg: print out cgroup ino in the memcg tracepoints From: Shakeel Butt To: Dmitry Rokosov Cc: rostedt@goodmis.org, mhiramat@kernel.org, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, muchun.song@linux.dev, mhocko@suse.com, akpm@linux-foundation.org, kernel@sberdevices.ru, rockosov@gmail.com, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Content-Type: text/plain; charset="us-ascii" X-Rspam-User: X-Stat-Signature: cxy7wqasf563iyzjgsjbynr77jps4cwk X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 7B828C0012 X-HE-Tag: 1700885471-157690 X-HE-Meta: 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 gs+kKh8I 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.077721, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Nov 23, 2023 at 10:39:36PM +0300, Dmitry Rokosov wrote: > Sometimes, it becomes necessary to determine the memcg tracepoint event > that has occurred. This is particularly relevant in scenarios involving > a large cgroup hierarchy, where users may wish to trace the process of > reclamation within a specific cgroup(s) by applying a filter. > > The function cgroup_ino() is a useful tool for this purpose. > To integrate cgroup_ino() into the existing memcg tracepoints, this > patch introduces a new tracepoint template for the begin() and end() > events. > > Signed-off-by: Dmitry Rokosov Acked-by: Shakeel Butt