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Wed, 11 Aug 2021 10:20:27 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id Rrg1M2ukE2FQDQAAGKfGzw (envelope-from ); Wed, 11 Aug 2021 10:20:27 +0000 Subject: Re: [PATCH v14 035/138] mm/memcg: Use the node id in mem_cgroup_update_tree() To: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Michal Hocko , Johannes Weiner , Christoph Hellwig References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-36-willy@infradead.org> From: Vlastimil Babka Message-ID: <95316d90-fad8-61c4-edeb-c2fc56e0b346@suse.cz> Date: Wed, 11 Aug 2021 12:20:27 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210715033704.692967-36-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=JIUKtvQZ; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=rf3Qvjla; spf=pass (imf08.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.28 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 090063008BD3 X-Stat-Signature: d3usgesgqfx1ppquc4mg68gxierngbrd X-HE-Tag: 1628677228-410009 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 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote: > By using the node id in mem_cgroup_update_tree(), we can delete > soft_limit_tree_from_page() and mem_cgroup_page_nodeinfo(). Saves 42 > bytes of kernel text on my config. > > Signed-off-by: Matthew Wilcox (Oracle) > Acked-by: Michal Hocko > Acked-by: Johannes Weiner > Reviewed-by: Christoph Hellwig Acked-by: Vlastimil Babka