From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 431C847F78C; Wed, 9 Sep 2026 16:12:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788970339; cv=none; b=SE5FPBmsiNbZpZHjaamGMR1W3Z+QHLeNY5gIRBADVbdHUsFCvi/xhNn99by7/e6KbppRvreQnRqVK6fzN3hXarIGAGCFtUEt2k2hP9grq0lsynSXSsFkM609Ju691sskvBgCUcQLrlZE6Jr03k2RQ5uVcPwbIfoz4oXZU3C0/10= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788970339; c=relaxed/simple; bh=8LpGVVsPK//f23rtjFiDmjO5lWL1yhrGGqm9myl1WC0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=m4Au1+SdeuhOd43XCMeKOjU4Cgqr0S7vk0d2o/INIe69lcA2k6DnymuqQsu1guwTy2YxzLS94TPTeYo8a/SzBeHXcyCEtu3m2SnQ9Acs3T6iaied1uQ2Bj+BEMehEczYER41zTcwwkfg7GugD3sGy2/y/HcFxXN9VdEF/DM7hjk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nyx0WwC8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nyx0WwC8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87A0E1F00A3A; Wed, 9 Sep 2026 16:12:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788970337; bh=/HRifwmxeGvJe7kJs7f3I4hA30d5I/e+qt2AvENBJgw=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=nyx0WwC8UXgF34bKIGpOOMilC7CTqwRb74EUJPBwOD8zVZaOP/m+QoC1+1+QXBLt/ lTsBx6bAauoPLpTk4fvWWqGcLUFKrCg3CpY6RAd19V9JrL7mIL4Cc94wFPLTDfWLGO lM/HydDSpOuuvNg6yX+FAHvfctaOsCOHCoLvs4xsWL8ydpc+CwzOAtBisx9yiDwZQM /gNhRtIjpTbpgSN0MSdZpBFB8iIKswgR34L4IFdqxhL2p0oROblebe5FgYhaFL/oO+ ucJkyiVhZEOCzUcRGPLScUmvvJNGbpK5ozMotdNNzdvV/Vz4Gp4d54lmqJKrlJR+nW WLBFC+AEdIHMg== Message-ID: <5c856f40-35ef-49f1-9ecd-4266891bc0a3@kernel.org> Date: Wed, 9 Sep 2026 18:11:58 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/8] mm/ksm: convert process iterator to for_each_process_rculock To: Ye Liu , Andrew Morton Cc: Ye Liu , Michal Hocko , SJ Park , peterz@infradead.org, paulmck@kernel.org, mingo@redhat.com, rostedt@goodmis.org, jpoimboe@kernel.org, mic@digikod.net, oleg@redhat.com, tglx@kernel.org, linmiaohe@huawei.com, nao.horiguchi@gmail.com, rafael@kernel.org, gnoack3000@gmail.com, ljs@kernel.org, rientjes@google.com, shakeel.butt@linux.dev, xu.xin16@zte.com.cn, chengming.zhou@linux.dev, will@kernel.org, boqun@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joelagnelf@nvidia.com, josh@joshtriplett.org, urezki@gmail.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, 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, mhiramat@kernel.org, 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 References: <20260907081334.1152889-1-ye.liu@linux.dev> <20260907081334.1152889-4-ye.liu@linux.dev> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/7/26 10:13, Ye Liu wrote: > From: Ye Liu > > Replace the manual rcu_read_lock()/rcu_read_unlock() pair combined > with for_each_process() loop in mm/ksm.c with for_each_process_rculock(), > which scopes the RCU read lock to the loop body via scoped_guard(rcu). > > No functional change. > > Signed-off-by: Ye Liu > Acked-by: Michal Hocko > Reviewed-by: SJ Park > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David