From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 29D23C88E77 for ; Wed, 16 Sep 2026 02:36:31 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 42EBC6B009E; Tue, 15 Sep 2026 22:36:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3DF396B009F; Tue, 15 Sep 2026 22:36:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2CFC66B00A0; Tue, 15 Sep 2026 22:36:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 0EFD16B009E for ; Tue, 15 Sep 2026 22:36:30 -0400 (EDT) Received: from smtpin02.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 92574160580 for ; Wed, 16 Sep 2026 02:36:29 +0000 (UTC) X-FDA: 85218061698.02.567DC83 Received: from mta0.migadu.com (out-227.mta0.migadu.com [91.218.175.227]) by imf12.hostedemail.com (Postfix) with ESMTP id 9F6B540006 for ; Wed, 16 Sep 2026 02:36:27 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ttFq3DWY; spf=pass (imf12.hostedemail.com: domain of muchun.song@linux.dev designates 91.218.175.227 as permitted sender) smtp.mailfrom=muchun.song@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1789526187; b=LeryVR2I8ScI3WLx+J3VzCI+fn3AKnMHhhQCiZnE4vI28AmELHLTzoCyyU43CDqUMltxPV G//irLa8KvbT2jHGQgVT/ThgRuFmLpQSxhmRLzmquYQkA18lVjRFKCmMq50gcgZcCkUNT0 pLiyJB2xFIGapSksY1kMb3kAenuQwwQ= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ttFq3DWY; spf=pass (imf12.hostedemail.com: domain of muchun.song@linux.dev designates 91.218.175.227 as permitted sender) smtp.mailfrom=muchun.song@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1789526187; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=CbEQrIA83IYrhW8D4seHdk5E5umblkqPOzrNx/6qe6g=; b=nf0Bb4kzZj7K5fsz6vgn2chkZG29+C4XuA3J6vBLU/kKNsLk0HrkqoQiVChzXicbRL1oZO vur2YFNO++n7WHXibD5M5L9lb9bSUsfOgf1crLdsv45xYtiUU2nEcBO3Gw52/xZ2raudn/ jLNdnjc0DUdeQ+ifeu7JC45b5sd4WFI= X-Envelope-To: linux-mm@kvack.org DKIM-Signature: a=rsa-sha256; bh=7Dz4fms3T/cjCdtsDYuHqhdriRacQBPm6AH3anwvlj4=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1789526186; v=1; x=1790130986; b=ttFq3DWYHJZhgvzRXlNISEXYnO9+a0TLmYENr95Sir8R3XqPdJSJAmgdHapbjlea+8ffH6HQ bG8OH1LIvXMk/RLyxUtd7KxUxdHXZUepRxw2IDAJC2LHDSlrO3LFXerkoKiwEpVoOiaddVCJ1u/ oFz3PkKYN5o0RLu7RsIA41gE= X-Envelope-To: linux-mm@kvack.org Received: by mta12.migadu.com with ESMTPS id 9d20baf603adb599; Wed, 16 Sep 2026 02:36:25 +0000 X-Mizu-Trace-ID: 9d20baf603adb599 X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.700.51.1.1\)) Subject: Re: [PATCH v3 09/11] mm: memcontrol: constify the swap accounting helpers From: Muchun Song In-Reply-To: <20260915-folio_memcg-const-v3-9-c239a6010b58@columbia.edu> Date: Wed, 16 Sep 2026 10:36:09 +0800 Cc: Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Kairui Song , Qi Zheng , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Baoquan He , Baolin Wang , Chris Li , Kemeng Shi , Nhat Pham , Youngjun Park , "Matthew Wilcox (Oracle)" , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: References: <20260915-folio_memcg-const-v3-0-c239a6010b58@columbia.edu> <20260915-folio_memcg-const-v3-9-c239a6010b58@columbia.edu> To: Tal Zussman X-Mailer: Apple Mail (2.3864.700.51.1.1) X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 9F6B540006 X-Stat-Signature: c1hbij8no7thcp63nq53nkw9djizkxr1 X-HE-Tag: 1789526187-134193 X-HE-Meta: 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 N7qFMfLI XYHLUDCBQIZn/GXD75C0XHytUvPc385YlLHFJj3mVkqDhH2xyZQj62N+KyOk+hrE4wlebwJPTrOMc50lSAE4I1Eq8iOSDZMhrsz5yKzt2K6N2jVBxIfxEfEjmYZYC6LRckrj1PYobqsoL3D9vsnS13v/bi4mAiPQqjZy+EVlBv5ER09WPAPNgNTmHhMkFu5+7N9Ywh7t0N9fypyy3kTUNvsqwlhFO/G/eS+7xEI0ofSDidH7a8lq9de/TSCjY5ZiyitnRmH6mdZxUAlU= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Sep 16, 2026, at 07:20, Tal Zussman wrote: > > mem_cgroup_get_nr_swap_pages(), mem_cgroup_get_folio_swap_margin(), and > mem_cgroup_swap_full() only read swap counters and limits. Constify > them. > > Remove externs from function declarations while at it. > > Signed-off-by: Tal Zussman Acked-by: Muchun Song Thanks.