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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q20-20020a056402519400b0046abbd721e4si23099885edd.300.2023.01.13.05.12.16; Fri, 13 Jan 2023 05:12:42 -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=@gmail.com header.s=20210112 header.b=VV85mTEQ; 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=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241569AbjAMNME (ORCPT + 99 others); Fri, 13 Jan 2023 08:12:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230482AbjAMNL2 (ORCPT ); Fri, 13 Jan 2023 08:11:28 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5492636315 for ; Fri, 13 Jan 2023 04:59:20 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id bj3so19160165pjb.0 for ; Fri, 13 Jan 2023 04:59:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=krjTcP+Olcn9DsdB5Mkg9+Rakj50UWZJ91qIIjSVYfo=; b=VV85mTEQK8exgFDT+XzgtYq+QugP5JE+PB6JlYPa9LAViXHvUXXi9pkeXQoygkxM8q ydImAB4McSvmNf5y7RSPUkFL6vu6OEqJly0/OM6h/y1QV3QGmQbWriasYxiBl1GBiuOX 8JX/IvhF+uw/tySM1pT4zK1+LaZvUPWUDH5VMY0gptUBESE4PbpKKaKqRkefhrkZspBk 9YaI9FD/z+HVhhWMxqUReQSzJJtaYTfijWbe+xXuu2ssDbOQNsAofz9G1s20TuFvh6h9 cuXBrZoWARdcTprcOWTzuwfdu4g6NnsYjhokDzuEPOoEa5506v4qYW7oA/levKXOTDyG r93w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=krjTcP+Olcn9DsdB5Mkg9+Rakj50UWZJ91qIIjSVYfo=; b=OVGLDpHT9sDScrupGnF29k4xLArSw1YKz8eNKqqAPgFXOlIr73tKV5L95YjBiMCTfM Rr3V6pg30jMnCmYOVjcB2xNU8Sx8kDy8ydILZNQElPM7jZYB1QX22sQB1RyVN6zu1+25 GMfbKK5yTYIzdnSZHsa/9DiRWGVyb1uZRBAPQmLP8VKe4M6aeRByZMzin025yxL7mUkV b+gHCL+PS0nG3HHFP345JZuuPbVE/8x6ytypSPg1B2QUEPLHydwXGz2zkdkljxDWqtKM eO572Apt2pmh1AME1YOiD0T/OzSksmcl39Z3ZyMluctnavns8yGV7UByscSzba8Rd+qX zoGQ== X-Gm-Message-State: AFqh2koamNGtTZuOV6dq6h0YNd/wJYCxuGcNLarV6auOQZaIe606Jc3A hhLVH9GEoYaFkUQYt2QqB6wUFgSNRVo= X-Received: by 2002:a17:902:c948:b0:188:a6ea:279f with SMTP id i8-20020a170902c94800b00188a6ea279fmr109457559pla.12.1673614759801; Fri, 13 Jan 2023 04:59:19 -0800 (PST) Received: from mi-HP-ProDesk-680-G4-MT.mioffice.cn ([43.224.245.252]) by smtp.gmail.com with ESMTPSA id j3-20020a170903028300b001944bf0b57asm5453820plr.204.2023.01.13.04.59.17 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 13 Jan 2023 04:59:19 -0800 (PST) From: qixiaoyu1 X-Google-Original-From: qixiaoyu1 To: Jaegeuk Kim , Chao Yu Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, xiongping1@xiaomi.com, qixiaoyu1 Subject: [PATCH 1/2] f2fs: fix wrong calculation of block age Date: Fri, 13 Jan 2023 20:58:58 +0800 Message-Id: <20230113125859.15651-1-qixiaoyu1@xiaomi.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,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 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754913111440509882?= X-GMAIL-MSGID: =?utf-8?q?1754913111440509882?= Currently we wrongly calculate the new block age to old * LAST_AGE_WEIGHT / 100. Fix it to new * (100 - LAST_AGE_WEIGHT) / 100 + old * LAST_AGE_WEIGHT / 100. Signed-off-by: qixiaoyu1 --- fs/f2fs/extent_cache.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c index 342af24b2f8c..93a1ab186517 100644 --- a/fs/f2fs/extent_cache.c +++ b/fs/f2fs/extent_cache.c @@ -874,11 +874,7 @@ void f2fs_update_read_extent_tree_range_compressed(struct inode *inode, static unsigned long long __calculate_block_age(unsigned long long new, unsigned long long old) { - unsigned long long diff; - - diff = (new >= old) ? new - (new - old) : new + (old - new); - - return div_u64(diff * LAST_AGE_WEIGHT, 100); + return new - new / 100 * LAST_AGE_WEIGHT + old / 100 * LAST_AGE_WEIGHT; } /* This returns a new age and allocated blocks in ei */ From patchwork Fri Jan 13 12:58:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: qixiaoyu1 X-Patchwork-Id: 43299 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp261716wrt; Fri, 13 Jan 2023 05:13:34 -0800 (PST) X-Google-Smtp-Source: AMrXdXuL4Cp6L1bV4YnBJa8PFHbCvzC2/QDJ0amdvPwCRptwN2sHiQhoHMXTog5zcu9Z9qJWZDUr X-Received: by 2002:a05:6402:357:b0:49b:b274:b816 with SMTP id r23-20020a056402035700b0049bb274b816mr4126017edw.37.1673615614164; Fri, 13 Jan 2023 05:13:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673615614; cv=none; d=google.com; s=arc-20160816; b=BXubArIRnD+Iw1AHDLq/sMJdi+2EzUtTVDyUNZhCTI6f2OrHLRedjXO+0c+4sB/IeH IZdnYaPHnUYKJcFjuwgUC0b/Yl7PmOkXWRmOzGm7Yr1jpsVwyfANsQrF+ADz09UCQb9W ZYHoX3vH7LtIdLM0pP/5J1vbZLtat3dsL+Y4IbFVqEaK+R23lJ3pW4+WKF2e5ab5Wmvs M4grZQl7QtdS71dqGp4WRPtReEe66R0FLp8S+kcCqQ9IHpFsg65nHvNi8uiuLI2/1Eyt ONMMQ1E2DmN3W/KavzqJQPbVXkMPkwBkwgYghSvM1hF21CLXo0E02TAM/1tftq3LscF1 BlYQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=b2GF+E99ye3xLBw4zeGrDxAlN/CsQQRneamSV4aiYR4=; b=NZbZFmGV2FgzCeCgZv6WVApIZ/HR2tmfegroMnRXUuKJwwGDqfJAlSfRoOyZ5SDsKL xfmDPXmnoIFZkD5f5CUW6igJUguZfGdvBPYYDUUg8qXHkA4uOasg7QnrSDOuvlDUqALL kctB2+hdSOlB2pbXuP9tf7XZk6s8Q8RjSHxApZMsL87LTyrsdn5C4J2Xlzh2qNpv1Jc5 sDFjT2FZfpPtJjfnEqsfpxBNE/1cQHFxWTMJLr2q5ZODneWL1/bzRxl1Fc+4kVigpo2Q K6hmjZtZb1fiHvv5Alrk1xAxocnWCGYPzv04uK/+aKNH6ZydMwEUZeQnPAfx9Ke2Ec8C x0yA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=BsnEKymp; 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=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. 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By default it was initialized as 2621440 blocks (equals to 10GB). + +What: /sys/fs/f2fs//last_age_weight +Date: January 2023 +Contact: "Ping Xiong" +Description: When DATA SEPARATION is on, it controls the weight of last data block age. diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c index 93a1ab186517..47222a899385 100644 --- a/fs/f2fs/extent_cache.c +++ b/fs/f2fs/extent_cache.c @@ -871,10 +871,12 @@ void f2fs_update_read_extent_tree_range_compressed(struct inode *inode, } #endif -static unsigned long long __calculate_block_age(unsigned long long new, - unsigned long long old) +static unsigned long long __calculate_block_age(struct f2fs_sb_info *sbi, + unsigned long long new, unsigned long long old) { - return new - new / 100 * LAST_AGE_WEIGHT + old / 100 * LAST_AGE_WEIGHT; + unsigned int weight = sbi->last_age_weight; + + return new - new / 100 * weight + old / 100 * weight; } /* This returns a new age and allocated blocks in ei */ @@ -906,7 +908,7 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei, cur_age = ULLONG_MAX - tei.last_blocks + cur_blocks; if (tei.age) - ei->age = __calculate_block_age(cur_age, tei.age); + ei->age = __calculate_block_age(sbi, cur_age, tei.age); else ei->age = cur_age; ei->last_blocks = cur_blocks; @@ -1222,6 +1224,7 @@ void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi) atomic64_set(&sbi->allocated_data_blocks, 0); sbi->hot_data_age_threshold = DEF_HOT_DATA_AGE_THRESHOLD; sbi->warm_data_age_threshold = DEF_WARM_DATA_AGE_THRESHOLD; + sbi->last_age_weight = LAST_AGE_WEIGHT; } int __init f2fs_create_extent_cache(void) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e8953c3dc81a..c3609cbc28c7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1679,6 +1679,7 @@ struct f2fs_sb_info { /* The threshold used for hot and warm data seperation*/ unsigned int hot_data_age_threshold; unsigned int warm_data_age_threshold; + unsigned int last_age_weight; /* basic filesystem units */ unsigned int log_sectors_per_block; /* log2 sectors per block */ diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 83a366f3ee80..a70cf674d8e7 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -686,6 +686,15 @@ static ssize_t __sbi_store(struct f2fs_attr *a, return count; } + if (!strcmp(a->attr.name, "last_age_weight")) { + if (t <= 0 || t >= 100) + return -EINVAL; + if (t == *ui) + return count; + *ui = (unsigned int)t; + return count; + } + *ui = (unsigned int)t; return count; @@ -944,6 +953,7 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, revoked_atomic_block, revoked_atomic_block) /* For block age extent cache */ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, hot_data_age_threshold, hot_data_age_threshold); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, warm_data_age_threshold, warm_data_age_threshold); +F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, last_age_weight, last_age_weight); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -1042,6 +1052,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(revoked_atomic_block), ATTR_LIST(hot_data_age_threshold), ATTR_LIST(warm_data_age_threshold), + ATTR_LIST(last_age_weight), NULL, }; ATTRIBUTE_GROUPS(f2fs);