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[2620:137:e000::1:20]) by mx.google.com with ESMTP id s15-20020a056402520f00b0046af2ddb0a6si851985edd.94.2022.11.28.20.56.06; Mon, 28 Nov 2022 20:56:26 -0800 (PST) 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=@chromium.org header.s=google header.b="Mz/KYQj4"; 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=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235341AbiK2D6S (ORCPT + 82 others); Mon, 28 Nov 2022 22:58:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235201AbiK2D6Q (ORCPT ); Mon, 28 Nov 2022 22:58:16 -0500 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 140AAA1A6 for ; Mon, 28 Nov 2022 19:58:16 -0800 (PST) Received: by mail-pf1-x436.google.com with SMTP id o1so7952164pfp.12 for ; Mon, 28 Nov 2022 19:58:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; 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=UxmZ2Yys/5XwKGWY9dVGrUIryLuN0T7PNro9+OrkmPY=; b=Mz/KYQj4557rDREjSNJ+QjdnEF0OsZ3QzTnxYeBm1s9iqvUlnqNM2QgIYXHIdn5zGB JHdIiAR/eSUu6+cYxpeRUKTg3BrF1aYKJN7zQEGDTvvQblhZXd5X7C6Kje7MSKp86pVy 7LGdDYpEfLlf8JzpdnEW4kvx4+PPWUJwF1rok= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=UxmZ2Yys/5XwKGWY9dVGrUIryLuN0T7PNro9+OrkmPY=; b=WEz0INazXig0v2gcUfhFMGD66cS+pbWt4IbEa/emQ0dr+bpFpPjE4Z0jvQm1bx/loD QRT3VwzlVybGeHW4t+JRI7dU/CGz1hkgF+WBEteJ7xudbElfLLZLAOoGSBhYuDt2HBd4 e02q72Sxhzv0nkhyDslQdV6VXRPRHwPOpFzMChA4TcgQV/sCg7yRUeoxYADmn463KKZi SrgwrkEVb5IgS8l9dyUm2b94Y67u8u8OsTo/rrcBsbA3aZfu7sgzaNC2RLthP6+A1AYH o66EkkRw3zbnZhZm/9EChVQMCI9Ko/SKrrT8rO5wpP1v3gcxPQgnUusHE1B2a6CcP/6C WzeQ== X-Gm-Message-State: ANoB5pnN0IZ7xX+WcNZ+0YCGPs/zBThjBN1xsd2OQzY99TsVV8WrlKvZ Ti5SMoSutkPLRd39TUXF7vdtKA== X-Received: by 2002:a63:f90d:0:b0:477:7f9:aecd with SMTP id h13-20020a63f90d000000b0047707f9aecdmr37032793pgi.242.1669694295489; Mon, 28 Nov 2022 19:58:15 -0800 (PST) Received: from google.com ([240f:75:7537:3187:2565:b2f5:cacd:a5d9]) by smtp.gmail.com with ESMTPSA id h11-20020a62830b000000b0056c063dd4cfsm8818645pfe.66.2022.11.28.19.58.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Nov 2022 19:58:15 -0800 (PST) Date: Tue, 29 Nov 2022 12:58:10 +0900 From: Sergey Senozhatsky To: Nhat Pham Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, minchan@kernel.org, ngupta@vflare.org, senozhatsky@chromium.org, sjenning@redhat.com, ddstreet@ieee.org, vitaly.wool@konsulko.com Subject: Re: [PATCH v7 6/6] zsmalloc: Implement writeback mechanism for zsmalloc Message-ID: References: <20221128191616.1261026-1-nphamcs@gmail.com> <20221128191616.1261026-7-nphamcs@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221128191616.1261026-7-nphamcs@gmail.com> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 (22/11/28 11:16), Nhat Pham wrote: > This commit adds the writeback mechanism for zsmalloc, analogous to the > zbud allocator. Zsmalloc will attempt to determine the coldest zspage > (i.e least recently used) in the pool, and attempt to write back all the > stored compressed objects via the pool's evict handler. > > Signed-off-by: Nhat Pham Reviewed-by: Sergey Senozhatsky