From patchwork Tue Apr 11 02:31:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 13206959 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 2DDD3C76196 for ; Tue, 11 Apr 2023 02:31:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229827AbjDKCb3 (ORCPT ); Mon, 10 Apr 2023 22:31:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229536AbjDKCb3 (ORCPT ); Mon, 10 Apr 2023 22:31:29 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0089270D for ; Mon, 10 Apr 2023 19:31:27 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 9B0811FDFE for ; Tue, 11 Apr 2023 02:31:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1681180286; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7qnBM7DClDz1r4nDxQmy4gfkSeOL3vTGQlZ/PxSMxcs=; b=GzOj7p3T+IwgqY7Em3KI0VV5DP58vSRskSXIv/srYYIx3n7jAjTiHyqkR9BlXCzyu8DSLT vsoUkZ9e18z3GYMrnKTqzznO7lrTvJSZT30txPYgSSPG/YVAgEiN4bkOBFrrlXMS6N2NFz MYxAWgC39ZV9f9TnWNVm+vq51pmKlC8= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 0B13A13638 for ; Tue, 11 Apr 2023 02:31:25 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id eAAYM33GNGRWDgAAMHmgww (envelope-from ) for ; Tue, 11 Apr 2023 02:31:25 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH 2/2] btrfs-progs: move block-group-tree out of experimental features Date: Tue, 11 Apr 2023 10:31:06 +0800 Message-Id: <4cc5819796bd2af6de78b7a1919b4f8ed02b985f.1681180159.git.wqu@suse.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The feedback from the community on block group tree is very positive, the only complain is, end users need to recompile btrfs-progs with experimental features to enjoy the new feature. So let's move it out of experimental features and let more people enjoy faster mount speed. Also change the option of btrfstune, from `-b` to `--enable-block-group-tree` to avoid short option. Signed-off-by: Qu Wenruo Reviewed-by: Anand Jain --- Documentation/btrfs-man5.rst | 6 ++++++ Documentation/btrfstune.rst | 4 ++-- Documentation/mkfs.btrfs.rst | 5 +++++ common/fsfeatures.c | 4 +--- tune/main.c | 18 ++++++++---------- 5 files changed, 22 insertions(+), 15 deletions(-) diff --git a/Documentation/btrfs-man5.rst b/Documentation/btrfs-man5.rst index b50064fe9931..c625a9585457 100644 --- a/Documentation/btrfs-man5.rst +++ b/Documentation/btrfs-man5.rst @@ -66,6 +66,12 @@ big_metadata the filesystem uses *nodesize* for metadata blocks, this can be bigger than the page size +block_group_tree + (since: 6.1) + + block group item representation using a dedicated b-tree, this can greatly + reduce mount time for large filesystems. + compress_lzo (since: 2.6.38) diff --git a/Documentation/btrfstune.rst b/Documentation/btrfstune.rst index f4400f1f527a..c84c1e7e7092 100644 --- a/Documentation/btrfstune.rst +++ b/Documentation/btrfstune.rst @@ -24,8 +24,8 @@ means. Please refer to the *FILESYSTEM FEATURES* in :doc:`btrfs(5)` OPTIONS ------- --b - (since kernel 6.1, needs experimental build of btrfs-progs) +--enable-block-group-tree + (since kernel 6.1) Enable block group tree feature (greatly reduce mount time), enabled by mkfs feature *block-group-tree*. diff --git a/Documentation/mkfs.btrfs.rst b/Documentation/mkfs.btrfs.rst index e80f4c5c83ee..fe52f4406bf2 100644 --- a/Documentation/mkfs.btrfs.rst +++ b/Documentation/mkfs.btrfs.rst @@ -283,6 +283,11 @@ free-space-tree Enable the free space tree (mount option *space_cache=v2*) for persisting the free space cache. +block-group-tree + (kernel support since 6.1) + + Enable the block group tree to greatly reduce mount time for large filesystems. + BLOCK GROUPS, CHUNKS, RAID -------------------------- diff --git a/common/fsfeatures.c b/common/fsfeatures.c index 4aca96f6e4fe..50500c652265 100644 --- a/common/fsfeatures.c +++ b/common/fsfeatures.c @@ -171,7 +171,6 @@ static const struct btrfs_feature mkfs_features[] = { .desc = "support zoned devices" }, #endif -#if EXPERIMENTAL { .name = "block-group-tree", .compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_BLOCK_GROUP_TREE, @@ -181,6 +180,7 @@ static const struct btrfs_feature mkfs_features[] = { VERSION_NULL(default), .desc = "block group tree to reduce mount time" }, +#if EXPERIMENTAL { .name = "extent-tree-v2", .incompat_flag = BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2, @@ -222,7 +222,6 @@ static const struct btrfs_feature runtime_features[] = { VERSION_TO_STRING2(default, 5,15), .desc = "free space tree (space_cache=v2)" }, -#if EXPERIMENTAL { .name = "block-group-tree", .compat_ro_flag = BTRFS_FEATURE_COMPAT_RO_BLOCK_GROUP_TREE, @@ -232,7 +231,6 @@ static const struct btrfs_feature runtime_features[] = { VERSION_NULL(default), .desc = "block group tree to reduce mount time" }, -#endif /* Keep this one last */ { .name = "list-all", diff --git a/tune/main.c b/tune/main.c index c5d2e37aef3d..f5a94cdbdb5f 100644 --- a/tune/main.c +++ b/tune/main.c @@ -70,6 +70,7 @@ static const char * const tune_usage[] = { OPTLINE("-x", "enable skinny metadata extent refs (mkfs: skinny-metadata)"), OPTLINE("-n", "enable no-holes feature (mkfs: no-holes, more efficient sparse file representation)"), OPTLINE("-S <0|1>", "set/unset seeding status of a device"), + OPTLINE("--enable-block-group-tree", "enable block group tree (mkfs: block-group-tree, for less mount time)"), "", "UUID changes:", OPTLINE("-u", "rewrite fsid, use a random one"), @@ -84,7 +85,6 @@ static const char * const tune_usage[] = { "", "EXPERIMENTAL FEATURES:", OPTLINE("--csum CSUM", "switch checksum for data and metadata to CSUM"), - OPTLINE("-b", "enable block group tree (mkfs: block-group-tree, for less mount time)"), #endif NULL }; @@ -113,27 +113,22 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[]) btrfs_config_init(); while(1) { - enum { GETOPT_VAL_CSUM = GETOPT_VAL_FIRST }; + enum { GETOPT_VAL_CSUM = GETOPT_VAL_FIRST, + GETOPT_VAL_ENABLE_BLOCK_GROUP_TREE }; static const struct option long_options[] = { { "help", no_argument, NULL, GETOPT_VAL_HELP}, + { "enable-block-group-tree", no_argument, NULL, + GETOPT_VAL_ENABLE_BLOCK_GROUP_TREE}, #if EXPERIMENTAL { "csum", required_argument, NULL, GETOPT_VAL_CSUM }, #endif { NULL, 0, NULL, 0 } }; -#if EXPERIMENTAL - int c = getopt_long(argc, argv, "S:rxfuU:nmM:b", long_options, NULL); -#else int c = getopt_long(argc, argv, "S:rxfuU:nmM:", long_options, NULL); -#endif if (c < 0) break; switch(c) { - case 'b': - btrfs_warn_experimental("Feature: conversion to block-group-tree"); - to_bg_tree = true; - break; case 'S': seeding_flag = 1; seeding_value = arg_strtou64(optarg); @@ -167,6 +162,9 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[]) ctree_flags |= OPEN_CTREE_IGNORE_FSID_MISMATCH; change_metadata_uuid = 1; break; + case GETOPT_VAL_ENABLE_BLOCK_GROUP_TREE: + to_bg_tree = true; + break; #if EXPERIMENTAL case GETOPT_VAL_CSUM: btrfs_warn_experimental(