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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92206C3601E for ; Fri, 11 Apr 2025 00:00:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 24637280146; Thu, 10 Apr 2025 20:00:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1F71E280138; Thu, 10 Apr 2025 20:00:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0C03B280146; Thu, 10 Apr 2025 20:00:23 -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 E0549280138 for ; Thu, 10 Apr 2025 20:00:22 -0400 (EDT) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 7868DC15CB for ; Fri, 11 Apr 2025 00:00:24 +0000 (UTC) X-FDA: 83319805968.06.FE71843 Received: from out-186.mta1.migadu.com (out-186.mta1.migadu.com [95.215.58.186]) by imf14.hostedemail.com (Postfix) with ESMTP id C688710000B for ; Fri, 11 Apr 2025 00:00:22 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=cc3gI6SW; spf=pass (imf14.hostedemail.com: domain of roman.gushchin@linux.dev designates 95.215.58.186 as permitted sender) smtp.mailfrom=roman.gushchin@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=1744329623; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=6sWCEwfn1sFr1IFbEijwYkuh53sbb6VptPWgsOJyegI=; b=ooWZ0b/Z5Q7l8m1FKKmuBtijh8MvUrO+vgX75JzIfjrL4SCrzPYUHdgIUsNETrC03iuw/5 9zvSvs9kckmH5C2VPTMk/k9AlWWy29lpmNBNMGcrSNI3nXxYljF7+haZRX/Tevx9Qs1jCg TgFLTaL03kzlNI1W5HdJRjU0bdH/Pow= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1744329623; a=rsa-sha256; cv=none; b=Yf8w2ZeTddcE25lGVgmG3HEBqeoWE25wOFzUyl0su80bFgqNutC7OQ9dtIT+EPBamthJSN 6Yvd0lmDtdtM1cem83ta+DPuMIWQ9+B0j0TEwprVfDzLRaZQRFug7e3vurhPGLKUL8VXY/ qFe7EZXNJ6hu7ZZMlk0ysdHYIWVxH3k= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=cc3gI6SW; spf=pass (imf14.hostedemail.com: domain of roman.gushchin@linux.dev designates 95.215.58.186 as permitted sender) smtp.mailfrom=roman.gushchin@linux.dev; dmarc=pass (policy=none) header.from=linux.dev X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1744329621; 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: in-reply-to:in-reply-to:references:references; bh=6sWCEwfn1sFr1IFbEijwYkuh53sbb6VptPWgsOJyegI=; b=cc3gI6SWNxqIlRHMfU9oR1gCq3DQMclPD/cDnfL6YU5rubUDPvq69lcgct8IMymJW4gu1W 3DOJQdehp9lhfOr80Ul3R8ON1naeuk/W+eSIDRGJP6Jp5QJ5uYKpOHPD3lszWXwA6u/odY 4xFF7keOj3XPWdGCrYo6e/qcEQJcf/E= From: Roman Gushchin To: Shakeel Butt Cc: Andrew Morton , Johannes Weiner , Michal Hocko , Muchun Song , Yosry Ahmed , Waiman Long , Vlastimil Babka , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Meta kernel team Subject: Re: [PATCH] memcg: decouple memcg_hotplug_cpu_dead from stock_lock In-Reply-To: <20250410210623.1016767-1-shakeel.butt@linux.dev> (Shakeel Butt's message of "Thu, 10 Apr 2025 14:06:23 -0700") References: <20250410210623.1016767-1-shakeel.butt@linux.dev> Date: Fri, 11 Apr 2025 00:00:15 +0000 Message-ID: <7ia41ptz1sa8.fsf@castle.c.googlers.com> MIME-Version: 1.0 Content-Type: text/plain X-Migadu-Flow: FLOW_OUT X-Stat-Signature: h8rcod7bn8ace8ihxfdy5nfqe1chwkrb X-Rspam-User: X-Rspamd-Queue-Id: C688710000B X-Rspamd-Server: rspam08 X-HE-Tag: 1744329622-572878 X-HE-Meta: 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 nzIHxb/Q LSTOsyeNmKuIkr2QePQpb/bw4inAAWqWJD8LS5y4+AQEDu1PKkaoePkLYYQ4MdZBr4mykSQP79ITEKub5hiq2j+deQ6YqRMfkWT1euZFVKv5SDUHuPYre5oL2RSaQfvUQkpq1EwSK1YhR5Jg= 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: List-Subscribe: List-Unsubscribe: Shakeel Butt writes: > The function memcg_hotplug_cpu_dead works on the stock of a remote dead > CPU and drain_obj_stock works on the given stock instead of local stock, > so there is no need to take local stock_lock anymore. > > Signed-off-by: Shakeel Butt Acked-by: Roman Gushchin Thanks!