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 X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24221C433E3 for ; Wed, 19 Aug 2020 07:31:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 02819206B5 for ; Wed, 19 Aug 2020 07:31:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HkLu+KZU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727884AbgHSHbw (ORCPT ); Wed, 19 Aug 2020 03:31:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727021AbgHSHbV (ORCPT ); Wed, 19 Aug 2020 03:31:21 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2575C061342 for ; Wed, 19 Aug 2020 00:31:21 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id p37so10975616pgl.3 for ; Wed, 19 Aug 2020 00:31:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6N4bqwfNNNZuZtRemXRTub25zoiixDBfSkDUqn/XADg=; b=HkLu+KZUHC0mxsHFcTvOI7gNdiVUJI5oxGafSvyOb7RwRXmkb5xt+cC/BGWNhnQvg/ qhyUSWdQ3cQpyKkVSeW/c68l8tTLq5OZoa4BwVImxzLTPrXvTAvKc96UJCgtBi9TeMQy nW22U7zUf84d+l7UUalKO2a0S6OzRnESbvkHV3QYSTgKZcT0Ns1MR5AryevWB5MAGNRx c47mo6iRYiZLmqknniIX5t5OR6q3itWp9Fi8gyGUa+8Y1wZEBf40UDaD6wu5TeVcfzyl DQVBi/3ojpTJ66rHoUOKKq1tExEHtmYPuRFIoidC/gfVlDji6zEIQ2lh+MXwh3s4AXYg EFkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6N4bqwfNNNZuZtRemXRTub25zoiixDBfSkDUqn/XADg=; b=NEFgQWmAAyEJZ+3FYSzOxdH3y+N7WmR62BzFwecz/PjqTh5Z8pL+290HKDcxd00ZnB 63cM2LKIaf6pce8m11Ch92wSoweKZ1BUmuqL9SbiF1pODnGlOFlAKNr+1pQpv58wSSFD CZbpOtyO53fb63X6fTCduzFCYq8NN0c2iS94yADvbmTKDoLurFR6Y/joRXU9cDL2umsy SL4qkf7XXQJpZdH2gLP9jaIiwRXi2QRW9neipYMM528PHLENNKtRbifV2h0l24IhsfAv Citfr3VoVosKGdi9iwPhmalhQ3XnCdVfEh72lQSFYlSLbGVrXasz2tMpl8n1CwKp7H72 CkZw== X-Gm-Message-State: AOAM5331uSKLYwMOOIREKXIyfPMmISCRKGVZQPIqGe4y7oEXInacsKbU 0HQiFArFWLC+zrbvO+Xa9kzBYoHm+nA= X-Google-Smtp-Source: ABdhPJzea/igWT104K9Yk6FsaTlyhlrw5N3zPQTdibtymmcAQoUM2yIMYTQnznLZIXDX0qHyMzYbHg== X-Received: by 2002:a63:711e:: with SMTP id m30mr16321796pgc.40.1597822281060; Wed, 19 Aug 2020 00:31:21 -0700 (PDT) Received: from harshads-520.kir.corp.google.com ([2620:15c:17:10:a6ae:11ff:fe11:86a2]) by smtp.googlemail.com with ESMTPSA id q6sm2040019pjr.20.2020.08.19.00.31.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Aug 2020 00:31:20 -0700 (PDT) From: Harshad Shirwadkar To: linux-ext4@vger.kernel.org Cc: tytso@mit.edu, lyx1209@gmail.com, Harshad Shirwadkar Subject: [PATCH 4/9] ext4: add prefetching support for freespace trees Date: Wed, 19 Aug 2020 00:30:59 -0700 Message-Id: <20200819073104.1141705-5-harshadshirwadkar@gmail.com> X-Mailer: git-send-email 2.28.0.220.ged08abb693-goog In-Reply-To: <20200819073104.1141705-1-harshadshirwadkar@gmail.com> References: <20200819073104.1141705-1-harshadshirwadkar@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org This patch supports creation of freespace trees for prefetched block bitmaps. Signed-off-by: Harshad Shirwadkar --- fs/ext4/mballoc.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 74bdc2dcb49c..1f4e69c6f488 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3145,6 +3145,9 @@ ext4_group_t ext4_mb_prefetch(struct super_block *sb, ext4_group_t group, void ext4_mb_prefetch_fini(struct super_block *sb, ext4_group_t group, unsigned int nr) { + struct ext4_buddy e4b; + int ret; + while (nr-- > 0) { struct ext4_group_desc *gdp = ext4_get_group_desc(sb, group, NULL); @@ -3159,8 +3162,15 @@ void ext4_mb_prefetch_fini(struct super_block *sb, ext4_group_t group, ext4_free_group_clusters(sb, gdp) > 0 && !(ext4_has_group_desc_csum(sb) && (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)))) { - if (ext4_mb_init_group(sb, group, GFP_NOFS)) + if (ext4_mb_frsp_on(sb)) { + ret = ext4_mb_load_allocator(sb, group, &e4b, + 0); + if (ret) + break; + ext4_mb_unload_allocator(&e4b); + } else if (ext4_mb_init_group(sb, group, GFP_NOFS)) { break; + } } } } -- 2.28.0.220.ged08abb693-goog