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[2620:137:e000::1:20]) by mx.google.com with ESMTP id l16-20020a170903245000b001b55c029108si5614065pls.363.2023.06.26.10.34.05; Mon, 26 Jun 2023 10:34:17 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=JbE9+VbX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229664AbjFZRNk (ORCPT + 99 others); Mon, 26 Jun 2023 13:13:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230079AbjFZRNi (ORCPT ); Mon, 26 Jun 2023 13:13:38 -0400 Received: from mail-pg1-x52f.google.com (mail-pg1-x52f.google.com [IPv6:2607:f8b0:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88E1E10CB for ; Mon, 26 Jun 2023 10:13:37 -0700 (PDT) Received: by mail-pg1-x52f.google.com with SMTP id 41be03b00d2f7-53482b44007so1712303a12.2 for ; Mon, 26 Jun 2023 10:13:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687799617; x=1690391617; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=sFA2O0087NjvyF0S8z80vIbG5VDSf/bqj4h/bFzML38=; b=JbE9+VbXHtv0KaXgv8REdZPmNZCdym4muJIwo1avxe7YnLPOVhuCTngHxzR6LhnUaL 8mgRNK4mi2wp25WOg6OQJpa/L2qVAgloBqhdi+L71OHMt/AeCi+b1kAgBhe4bOutjJZ/ 9yN/tbqmrk4isFmrPiQ7bT5bMugSCQqvFDpht+pQ/hsOaD+bRtCzkYDrCGH9mkIFNAcO OED2MdW4AQSjB/TLds5FMzIMsTB98yWJy1+IAJ3+eJ1atPzX+/bb3iCYfztcsSG/sleQ rg/yyEPB0ZX76v/dRVRWuCALQxaALnOsGumZ7VRVjVQ7U7ZxmYoeVcq7U5xjMaczgGpm pRQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687799617; x=1690391617; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sFA2O0087NjvyF0S8z80vIbG5VDSf/bqj4h/bFzML38=; b=e6mW/YOlwbFte7+/CDcm/n23PEKQXWf3ZP8Q5zM76kVt49icI6o15e1Ujom7MOnc5z D7SVosRXmIWesEXgmzuo+eoqSPk6Y9TjR80BjgydLUSLApSdYIPRrr9bghVPkiivS09D egtmAvn2aPJ7UKA7IMOWE6KjysX6qdddk8OB2bt+GZXR5c4biMAeowEqJstVCkmk0zwA QlIy2pOY1qaSAEcQGDjRqgO0t2VgIJpM2PWAgk34r4pYO8LDaw4fkHNwEVA2ryN/o1dv hv75bOcWcB6BDsM2qYRaGG3RC5d6oSCJoQfJe0bGN0gU1Az3kSG5aHjvWL1ZB/uf2xTf mXTQ== X-Gm-Message-State: AC+VfDzTtuyD4ZH0FdybXJlL+ezZXKg1fCOvMY6mNMUlxJN7Vd+EhRn1 M9if0eIKDRvN4N5Xo1aBGW6SFbep5M0= X-Received: by 2002:a17:90a:4e:b0:25b:b2ba:2ff4 with SMTP id 14-20020a17090a004e00b0025bb2ba2ff4mr19276461pjb.17.1687799616908; Mon, 26 Jun 2023 10:13:36 -0700 (PDT) Received: from google.com ([2620:15c:211:201:9abd:c54f:4c3a:e10a]) by smtp.gmail.com with ESMTPSA id ip4-20020a17090b314400b0025374fedab4sm6413464pjb.22.2023.06.26.10.13.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jun 2023 10:13:35 -0700 (PDT) Sender: Minchan Kim Date: Mon, 26 Jun 2023 10:13:33 -0700 From: Minchan Kim To: Sergey Senozhatsky Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Alexey Romanov Subject: Re: [PATCHv2 1/3] zsmalloc: do not scan for allocated objects in empty zspage Message-ID: References: <20230624053120.643409-1-senozhatsky@chromium.org> <20230624053120.643409-2-senozhatsky@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230624053120.643409-2-senozhatsky@chromium.org> X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 24, 2023 at 02:12:14PM +0900, Sergey Senozhatsky wrote: > zspage migration can terminate as soon as it moves the last > allocated object from the source zspage. Add a simple helper > zspage_empty() that tests zspage ->inuse on each migration > iteration. > > Suggested-by: Alexey Romanov > Signed-off-by: Sergey Senozhatsky Acked-by: Minchan Kim