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 7E20AC79F9E for ; Mon, 7 Sep 2026 21:29:13 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 915326B0096; Mon, 7 Sep 2026 17:29:12 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8C6506B0098; Mon, 7 Sep 2026 17:29:12 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7B53D6B0099; Mon, 7 Sep 2026 17:29:12 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 602636B0096 for ; Mon, 7 Sep 2026 17:29:12 -0400 (EDT) Received: from smtpin09.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id E7BCF402F5 for ; Mon, 7 Sep 2026 21:29:11 +0000 (UTC) X-FDA: 85188256902.09.53B4FC8 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf04.hostedemail.com (Postfix) with ESMTP id 62F9640009 for ; Mon, 7 Sep 2026 21:29:10 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=mEkeflrW; spf=pass (imf04.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788816550; 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-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=SCl+jEvdrjqF72ntttZG2eEJe2zsb8hqXfy1vCrvzWU=; b=67CZbDV/k2H/fQry7NSkogyb7WDKxXKWk9qb/lY3MBJOwDWbBEKJvCc1Dh/VUyj751aDZZ ydcJEK11JD9fAgf0bAutWkMqjJ1hMHuZ2NwO6cBMs1N66lXrfiqmVDa0+atcD8hMLN3Oa+ z2Q4FWSPFfC8zCi5fYGsufz1mJloMlg= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788816550; b=ErldTuRnRtogRwS9TGVrB3xyl8pyr5gBWTkkIqPZ1rAWLhLNfZVDX3JYZcWXzHMdfW7k9V k4qyocXJY8wEC/zZYllKAJFeC6HDjbnRA7Ozo4VB8vwueMlu/S7+kBveD0cIVlLGUE13JC t7BKp0Fh8DwwZ1dw/DcF2IBmb0vyv8o= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=mEkeflrW; spf=pass (imf04.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id B1712601DE; Mon, 7 Sep 2026 21:29:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65E0E1F00A3A; Mon, 7 Sep 2026 21:29:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788816549; bh=SCl+jEvdrjqF72ntttZG2eEJe2zsb8hqXfy1vCrvzWU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mEkeflrWN0r6Z+I8Juu6xf4YbiwhChACWok2YclBi8b5nJBlIpqf1i1momt9AzMLn HI1QtdkqTbNw4Jerj49Q9WTpWX98qUbvbygdjgic02n/DaTSMEahTmlv1lPyfkNLUM WYq/jtyC+ORcrpiixiCUqCGT3HhBkClPjn+0e1dhgw14q14WbqLaTNBJ1+rTTBFm0z Wo+OnNoio7rYWCJuwuHi8LhB5Cz3YZD+JVd+OY+K/vMlx6/4gF71U4NBaqZ8jahuv/ zpeq5EIJQp6qYxFG4w7AcQ9aa36+t+qChh4tHUDjmdDzzGm6jRaybZIc0+0lUtQj6p kQif/l2wruLaA== From: SJ Park To: Ye Liu Cc: SJ Park , Thomas Gleixner , Peter Zijlstra , "Rafael J. Wysocki" , Andrew Morton , Ingo Molnar , Will Deacon , Boqun Feng , "Paul E. McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Uladzislau Rezki , Juri Lelli , Vincent Guittot , Steven Rostedt , Masami Hiramatsu , Josh Poimboeuf , Ye Liu , Michal Hocko , mic@digikod.net, oleg@redhat.com, david@kernel.org, linmiaohe@huawei.com, nao.horiguchi@gmail.com, gnoack3000@gmail.com, ljs@kernel.org, rientjes@google.com, shakeel.butt@linux.dev, xu.xin16@zte.com.cn, chengming.zhou@linux.dev, tony.luck@intel.com, reinette.chatre@intel.com, x86@kernel.org, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, pavel@kernel.org, lance.yang@linux.dev, pmladek@suse.com, longman@redhat.com, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang@linux.dev, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kprateek.nayak@amd.com, mark.rutland@arm.com, Dave.Martin@arm.com, james.morse@arm.com, babu.moger@amd.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, rcu@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: [PATCH v2 5/8] kernel: convert process/thread iterators to for_each_*_rculock Date: Mon, 7 Sep 2026 14:28:59 -0700 Message-ID: <20260907212900.88422-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260907081334.1152889-6-ye.liu@linux.dev> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: yaa1xtsqgyo4heojx71zdqw4dajhu3yw X-Rspamd-Queue-Id: 62F9640009 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1788816550-877202 X-HE-Meta: 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 DfXLmsAT Ia3AJ/oi9Xy0iJUNNu07vqS8p+O7H34LCoQKVyXWgN0dGf+PKeuwEjLbRp0v0hES+ULPfJXmFWzrD7ZLH+hCjkmR7DbfSm5Ks31GWVckDULchVboNY0Lblz98mrR0BbY5c5CMhQoIFgw3Ogzbj9BQpMR1WF5yZottbteVLW80uVAFJFTgbT0mHwM9G1fM03sAqkamC5vNbOosYgYemfo+ohcu8NCWTvO6u63bn/wsumnhiwSw4FveM8uxPZNetOM8gQRKPUTjmhzWlIi69WVGN3R0SU3rJwtoUSXsjfMJrB9xbFEof1zfzqI3MGOhrXj/eQXtEaspEpbk0P8VtoF0QTkIxvGcPjNbcIL6stB82bqqRKaWsMPSGaJFDSsS+NAgPIDUgTa/5rHNxZsMhTqLme3VCECUMyPhYV05 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 7 Sep 2026 16:13:31 +0800 Ye Liu wrote: > From: Ye Liu > > Replace the manual rcu_read_lock()/rcu_read_unlock() and guard(rcu) > pairs combined with for_each_process(), for_each_thread() and > for_each_process_thread() loops across kernel/ with the > for_each_*_rculock() macros, which scope the RCU read lock to the > loop body via scoped_guard(rcu). > > No functional change. Looks good and correct to me. > > Signed-off-by: Ye Liu > Acked-by: Michal Hocko Reviewed-by: SJ Park Thanks, SJ [...]