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From: Roman Gushchin To: Shakeel Butt Cc: Andrew Morton , Johannes Weiner , Michal Hocko , Muchun Song , Yosry Ahmed , "T . J . Mercier" , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 7/8] memcg: warn for unexpected events and stats Message-ID: References: <20240501172617.678560-1-shakeel.butt@linux.dev> <20240501172617.678560-8-shakeel.butt@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240501172617.678560-8-shakeel.butt@linux.dev> X-Migadu-Flow: FLOW_OUT X-Stat-Signature: iosiayhey337jicndf39cxz1whndckkt X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 305D040003 X-HE-Tag: 1714605795-8977 X-HE-Meta: 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 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: List-Subscribe: List-Unsubscribe: On Wed, May 01, 2024 at 10:26:16AM -0700, Shakeel Butt wrote: > To reduce memory usage by the memcg events and stats, the kernel uses > indirection table and only allocate stats and events which are being > used by the memcg code. To make this more robust, let's add warnings > where unexpected stats and events indexes are used. > > Signed-off-by: Shakeel Butt Reviewed-by: Roman Gushchin