From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 896C28632E for ; Tue, 11 Mar 2025 15:09:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741705764; cv=none; b=OW6ji+Z0DZL04dz5ytyYFINLHkDEKgDSAOYg4f3Fg3d6LpWNwyU9rRyYFU52hOUZ01GcQbbUd+FqsvsbnzMQb2yspsD/+ENjpDJUHMpDD32mtEMIadbmH8DaHT+Sbv3jXG7VfiseaUbMeGLZlw99KeweWG1O8jNunBmRY09CoWw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741705764; c=relaxed/simple; bh=vb9WVjdXujyqG9HdkP9fDFqYDOXfh1MwdGvNDloJU5k=; h=From:Message-ID:Date:MIME-Version:Subject:To:Cc:References: In-Reply-To:Content-Type; b=c+VvZzmwBfEuzkYD2Kv94wscsSijh2tehlWSJ1h38oDE3UMnjCu5mPnnqatx7A5Ju/TihJzX4MKsPXgKwodNzv9zAQaKoeXxbm2Fn++hre1EAzogw1ky8KhtooG6Fb0/LAYHp17U5MKNvO+Ix68TAkCmmRrp1uXtFYb3NQz6a2M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=P5zYq44x; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="P5zYq44x" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741705761; h=from:from: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; bh=Jm5p6f/MWK5U7DpW+NpwXR9aqI/JKbBrooREb2Q78R8=; b=P5zYq44xbxy2cVT2aVemQ9QqXgIUuNU/gM6CV1+uoZLkOzU1atJMX27aOCWVkwYVJd0zKw gNHWfD3hVe7i0TFFdZVKjLxtOB1OS9xpUkJDb54RFxCBhbvby2wU8OhTDqmu7HSKPK6LuA mbGnF7d4B49q05ORECEMB5t5N2Pa3pQ= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-583-87KPsg12MzmGfCvNoAXC2g-1; Tue, 11 Mar 2025 11:09:20 -0400 X-MC-Unique: 87KPsg12MzmGfCvNoAXC2g-1 X-Mimecast-MFC-AGG-ID: 87KPsg12MzmGfCvNoAXC2g_1741705759 Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-7c54005ee2dso595285085a.0 for ; Tue, 11 Mar 2025 08:09:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741705759; x=1742310559; h=content-transfer-encoding:in-reply-to:content-language:references :cc:to:subject:user-agent:mime-version:date:message-id:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Jm5p6f/MWK5U7DpW+NpwXR9aqI/JKbBrooREb2Q78R8=; b=SZwks365qTSE5Gv6HPyXxJn0y2yqUgM/tDHIU9Ri5pZOq8i5fgq/PCXIwJo9gNFMYH LahYQfUUngkA6EKCDXyYybwQWjDIPHJH3S2xq1lptBSA9yA0mPOl2f/S41VA1l5haxNT yWFEl8kBfuP6izwpZgSKs4+fHSs7PB7Y/cIdibVVTulJFjMSLEa9cHKtadpmbsZxyHI5 2LAb2/InBniF8Kx1FLIo+7rm9CBjFNxAVld2pVdptz+z76Yxy3I95oTfqKC/9LA+x+C7 2PtuwTg30W+16GRfi1Bi8yoxv3sDRHGqXqUwxzu+I/sRGePKT2licIkRZOxtxB6ER2+f U1yQ== X-Forwarded-Encrypted: i=1; AJvYcCUD0FcR7rQH40KEs9mxMHyx2paMqyqdf/jPLBp5XOKY6CZ5lWgcTDfYypeoZNljXPCOBVmfOtG5IhV/aZA=@vger.kernel.org X-Gm-Message-State: AOJu0YwexWCamFgPwDSkNjI5VFL4VYiHTw0bUhXPhgcdK7Yj/rAdbPRk R15Y62p9r4Jv0qZGb6oTn6spl4tJ8TF7OXfwC0eaJPNu/9o753pT6oJx22VLEcs/YOZSVdXe08G t6qBMNd0gFvOr8FQrOdjAp/kzMHLGYu8U3eH7CCsTTCgPRaVpLJxP96S/o18IqA== X-Gm-Gg: ASbGncs0fwZmhu8022m2JfhkafuMKUvQLAa0dSMSpmbv0Ko8yvot6LdFeFKqS9tlcqZ 59Q3YYmThlCJUlQziW+uf/OCRZH+HYx5TTeV5YeMxrhrcpzun7/+VeJ4rW+ks5mIwgZmDoyIibN alvlSByD37vU/YYGyDPZLssHhGeaQWnbSxqgxVDwqFkry0iaXdnB+58VaYF9lrq0FyPA9JVSe3V bRn3FLmCNO+vGvCVIH1Te8/tzO1648jjPuUUxKCYEqBrC6enb3M5FZwT+kl/gK/qTVw5B18irxw njdpFou1r9gfhrLwBLbuU2ohD6YQBgN2qeSkveGeL0EhiAK5bWLdBCFHPaHSDw== X-Received: by 2002:a05:620a:2856:b0:7c5:65fb:fe0e with SMTP id af79cd13be357-7c565fbfffcmr271088585a.6.1741705759555; Tue, 11 Mar 2025 08:09:19 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHgw7eoIv2Vhl38GQs/MzX9nIqjX6y3ka9V536jOtKWJtrjsXcbVnJyTgSX7O+tWt6UW0RICQ== X-Received: by 2002:a05:620a:2856:b0:7c5:65fb:fe0e with SMTP id af79cd13be357-7c565fbfffcmr271085485a.6.1741705759324; Tue, 11 Mar 2025 08:09:19 -0700 (PDT) Received: from ?IPV6:2601:188:c100:5710:315f:57b3:b997:5fca? ([2601:188:c100:5710:315f:57b3:b997:5fca]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7c553a1e421sm349610085a.116.2025.03.11.08.09.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Mar 2025 08:09:18 -0700 (PDT) From: Waiman Long X-Google-Original-From: Waiman Long Message-ID: Date: Tue, 11 Mar 2025 11:09:18 -0400 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 06/11] cgroup/cpuset-v1: Add deprecation messages to memory_migrate To: =?UTF-8?Q?Michal_Koutn=C3=BD?= , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Tejun Heo , Johannes Weiner References: <20250311123640.530377-1-mkoutny@suse.com> <20250311123640.530377-7-mkoutny@suse.com> Content-Language: en-US In-Reply-To: <20250311123640.530377-7-mkoutny@suse.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 3/11/25 8:36 AM, Michal Koutný wrote: > Memory migration (between cgroups) was given up in v2 due to performance > reasons of its implementation. Migration between NUMA nodes within one > memcg may still make sense to modify affinity at runtime though. > > Signed-off-by: Michal Koutný > --- > kernel/cgroup/cpuset-v1.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/cgroup/cpuset-v1.c b/kernel/cgroup/cpuset-v1.c > index b243bdd952d78..7c37fabcf0ba8 100644 > --- a/kernel/cgroup/cpuset-v1.c > +++ b/kernel/cgroup/cpuset-v1.c > @@ -436,6 +436,7 @@ static int cpuset_write_u64(struct cgroup_subsys_state *css, struct cftype *cft, > retval = cpuset_update_flag(CS_SCHED_LOAD_BALANCE, cs, val); > break; > case FILE_MEMORY_MIGRATE: > + pr_info_once("cpuset.%s is deprecated\n", cft->name); > retval = cpuset_update_flag(CS_MEMORY_MIGRATE, cs, val); > break; > case FILE_MEMORY_PRESSURE_ENABLED: Acked-by: Waiman Long