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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B062BC001DE for ; Fri, 28 Jul 2023 03:53:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233276AbjG1Dx4 (ORCPT ); Thu, 27 Jul 2023 23:53:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233216AbjG1Dxn (ORCPT ); Thu, 27 Jul 2023 23:53:43 -0400 Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BB0E2D64 for ; Thu, 27 Jul 2023 20:53:42 -0700 (PDT) Received: by mail-pf1-x42c.google.com with SMTP id d2e1a72fcca58-686ed1d2594so1628284b3a.2 for ; Thu, 27 Jul 2023 20:53:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1690516422; x=1691121222; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=He4/7ZjAaJYV3oY1Q5qsfXRQN2c+aw/i3Z8upeCFxZY=; b=UJJSmsvKuA+7vHlEK5zqxwvD8B6Yt8XfXuAItoiHvAj3OoqGrALOYkCYQccCqOBd5Z tmtMhmnK6zN87HaVH9ygwQIQdC4SZMGydBwDwFW+ZmxwVd+Yinpn/4wGAvXFE++zJAos O2FXcKEu9fLVqrGMsoLKFn9LRJ/AlJZ69+Cpw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690516422; x=1691121222; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=He4/7ZjAaJYV3oY1Q5qsfXRQN2c+aw/i3Z8upeCFxZY=; b=S9bUCgh1DKwOStV1Zc4mTN/QRAqcrDfVMZy+T4/nJwMnVHQvB2kLNiUJcUqCDd+AS5 8MMK5WC4ogL87/q7Ny9MC7XpXqtq/ucuXDnhC51RLbHWNnQGtv18FEtxkYRxBWsorKMB FPA05e5iaChuo/nya87vkMyQHKERRAOf7bRukoAZTGb0hIzxVZPRm8t/cUPTgQYEySp8 b47kaENi5e6bMKmaN4/HtgGEwclsW3PD8z0tas6OUaWE7F8Xp64ZfHsYfyY5gisX0j1q rQMlNC2SS/WNgHgYlU3wjdTxhyb0KxfcLkaqb74akennZAJ7+BQknHyow19pCcAh0k2W ZomQ== X-Gm-Message-State: ABy/qLbA0PljGYOcrlcYboCxkiNepAOGA9Wb06/0Et20RG9IBAVa3kvY H1TU3pieTAb6rgUPkQKlshehow== X-Google-Smtp-Source: APBJJlGsTHxAEzSXpONNRDxyKgcp4KNYdrSE+s2zmuMCZXMTXa7hKLkFVzAtadS71u0jqoE5bCgxyA== X-Received: by 2002:a05:6a00:194f:b0:680:2b80:8479 with SMTP id s15-20020a056a00194f00b006802b808479mr868615pfk.19.1690516421816; Thu, 27 Jul 2023 20:53:41 -0700 (PDT) Received: from google.com ([2401:fa00:8f:203:9314:7aae:8542:aa2d]) by smtp.gmail.com with ESMTPSA id d26-20020aa78e5a000000b006870ff20242sm212301pfr.186.2023.07.27.20.53.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 20:53:41 -0700 (PDT) Date: Fri, 28 Jul 2023 12:53:36 +0900 From: Sergey Senozhatsky To: Andrew Yang Cc: Minchan Kim , Sergey Senozhatsky , Andrew Morton , Matthias Brugger , AngeloGioacchino Del Regno , Sebastian Andrzej Siewior , wsd_upstream@mediatek.com, casper.li@mediatek.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: Re: [PATCH v2] zsmalloc: Fix races between modifications of fullness and isolated Message-ID: <20230728035336.GL955071@google.com> References: <20230727062910.6337-1-andrew.yang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230727062910.6337-1-andrew.yang@mediatek.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (23/07/27 14:29), Andrew Yang wrote: > > Since fullness and isolated share the same unsigned int, > modifications of them should be protected by the same lock. > > Signed-off-by: Andrew Yang > Fixes: c4549b871102 ("zsmalloc: remove zspage isolation for migration") Reviewed-by: Sergey Senozhatsky