From patchwork Wed Feb 8 10:57:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13132968 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 B6791C636CC for ; Wed, 8 Feb 2023 10:58:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229684AbjBHK6C (ORCPT ); Wed, 8 Feb 2023 05:58:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229781AbjBHK57 (ORCPT ); Wed, 8 Feb 2023 05:57:59 -0500 Received: from esa4.hgst.iphmx.com (esa4.hgst.iphmx.com [216.71.154.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 855991350D for ; Wed, 8 Feb 2023 02:57:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1675853878; x=1707389878; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=NRTeDJlDGNPZe4rmP93nfwwO1wDLXDmBxBioaGPke5Y=; b=nF19k6z4wSyGqsTwu9EmNH1LUN3b+Z6GFVllTkAfL06aZjFSgrc4u/tn 3Jys3dIzAQnlXFHC0JPEFy70QypRw2RO0jcQUWttLa9aUK3Rli6RpjGlX sltSNo0zMUeVchdlMBwk6WLsj4bKHsGmJHO/EI0jk+pZ3ljJg1lbj6Fsw tsZB8xMQhTnuP0LxuSXpisI+pJFT6o1EgczK+2KGgmxVkI5C283hQRFT+ kaGaxgLDzfTOW2/uSF5sq05n9PyOZjquTpFUzfIZsDC+iTwVFy7S6qERx zQGGLx/4EftslqCempnPFs4bhFDm8c6b58h0hAlWk2+v4PJKZxSCEE0KP g==; X-IronPort-AV: E=Sophos;i="5.97,280,1669046400"; d="scan'208";a="221115628" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 08 Feb 2023 18:57:57 +0800 IronPort-SDR: Jxk7W65zNm+qGEr3nZ03SwZbTxO6wQAR0ymv1hpq2Pf663n7c3OEybX6hLtkENOfXogum9yWcf c1Hzil8UL9Klp5+IpK3GBmfF2XSbxUCj7Lg2qiOex0CUT4KcOWZe0RWE4e+R20nGlJkYLXLcsU pgxBA532gijAy16FyDU/VKdrX18Cpt6BO/cdZqQAA8hakP6ADvezeWzabykpp7liuzdqKZbjqF 7SISxFpIhze/ep09aCaBnReMkD335Hp/ThMWL6hFQmPouQeiEzLVe7IlhBiLZaslxsM/iPhn8Q Pu0= Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 08 Feb 2023 02:15:13 -0800 IronPort-SDR: Nm/QL7lvzU3Yg+YbQCRySYApoGsVH7oc8fT4nwbwzM6S4XGQ9sWZWWQWPHvl1wIWqc0Hc7T2i8 AjK6ZAi2fDB//M3JMPFxp+7VOR1zKL//Xilg+Bct9XWadyQZwLpMbQVl/uiXtRr2cfuD9uiY0x 4pjRvb7O0hrKVKpuh4oiOx5utFbaVHSa1HhVG0U3fmJqxhvVOyVdHHDskJSyS/tlvHBnrfy0mG fQ9UtLkzzqPJ4/isC347Gr2Zv6wxXND3F1B4iTydaunjit41t2TUGy08c4sJl6ANax9eAH8MdA HrU= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.72]) by uls-op-cesaip02.wdc.com with ESMTP; 08 Feb 2023 02:57:58 -0800 From: Johannes Thumshirn To: linux-btrfs@vger.kernel.org Cc: Johannes Thumshirn Subject: [PATCH v5 03/13] btrfs: read raid-stripe-tree from disk Date: Wed, 8 Feb 2023 02:57:40 -0800 Message-Id: <5898b85677c784bf6af4e3a18d61bf261af3141a.1675853489.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org If we find a raid-stripe-tree on mount, read it from disk. Signed-off-by: Johannes Thumshirn Reviewed-by: Josef Bacik Reviewed-by: Anand Jain --- fs/btrfs/block-rsv.c | 1 + fs/btrfs/disk-io.c | 19 +++++++++++++++++++ fs/btrfs/disk-io.h | 5 +++++ fs/btrfs/fs.h | 1 + include/uapi/linux/btrfs.h | 1 + 5 files changed, 27 insertions(+) diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c index 5367a14d44d2..384987343a64 100644 --- a/fs/btrfs/block-rsv.c +++ b/fs/btrfs/block-rsv.c @@ -402,6 +402,7 @@ void btrfs_init_root_block_rsv(struct btrfs_root *root) case BTRFS_EXTENT_TREE_OBJECTID: case BTRFS_FREE_SPACE_TREE_OBJECTID: case BTRFS_BLOCK_GROUP_TREE_OBJECTID: + case BTRFS_RAID_STRIPE_TREE_OBJECTID: root->block_rsv = &fs_info->delayed_refs_rsv; break; case BTRFS_ROOT_TREE_OBJECTID: diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 0da0bde347e5..ad64a79d052a 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1454,6 +1454,9 @@ static struct btrfs_root *btrfs_get_global_root(struct btrfs_fs_info *fs_info, return btrfs_grab_root(root) ? root : ERR_PTR(-ENOENT); } + if (objectid == BTRFS_RAID_STRIPE_TREE_OBJECTID) + return btrfs_grab_root(fs_info->stripe_root) ? + fs_info->stripe_root : ERR_PTR(-ENOENT); return NULL; } @@ -1532,6 +1535,7 @@ void btrfs_free_fs_info(struct btrfs_fs_info *fs_info) btrfs_put_root(fs_info->fs_root); btrfs_put_root(fs_info->data_reloc_root); btrfs_put_root(fs_info->block_group_root); + btrfs_put_root(fs_info->stripe_root); btrfs_check_leaked_roots(fs_info); btrfs_extent_buffer_leak_debug_check(fs_info); kfree(fs_info->super_copy); @@ -2067,6 +2071,7 @@ static void free_root_pointers(struct btrfs_fs_info *info, bool free_chunk_root) free_root_extent_buffers(info->fs_root); free_root_extent_buffers(info->data_reloc_root); free_root_extent_buffers(info->block_group_root); + free_root_extent_buffers(info->stripe_root); if (free_chunk_root) free_root_extent_buffers(info->chunk_root); } @@ -2519,6 +2524,20 @@ static int btrfs_read_roots(struct btrfs_fs_info *fs_info) fs_info->uuid_root = root; } + if (btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE)) { + location.objectid = BTRFS_RAID_STRIPE_TREE_OBJECTID; + root = btrfs_read_tree_root(tree_root, &location); + if (IS_ERR(root)) { + if (!btrfs_test_opt(fs_info, IGNOREBADROOTS)) { + ret = PTR_ERR(root); + goto out; + } + } else { + set_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state); + fs_info->stripe_root = root; + } + } + return 0; out: btrfs_warn(fs_info, "failed to read root (objectid=%llu): %d", diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index 3b53fc29a858..a85a8922c3fd 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -106,6 +106,11 @@ static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *root) return NULL; } +static inline struct btrfs_root *btrfs_stripe_tree_root(struct btrfs_fs_info *fs_info) +{ + return fs_info->stripe_root; +} + void btrfs_put_root(struct btrfs_root *root); void btrfs_mark_buffer_dirty(struct extent_buffer *buf); int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, diff --git a/fs/btrfs/fs.h b/fs/btrfs/fs.h index 4c477eae6891..93f2499a9c5b 100644 --- a/fs/btrfs/fs.h +++ b/fs/btrfs/fs.h @@ -367,6 +367,7 @@ struct btrfs_fs_info { struct btrfs_root *uuid_root; struct btrfs_root *data_reloc_root; struct btrfs_root *block_group_root; + struct btrfs_root *stripe_root; /* The log root tree is a directory of all the other log roots */ struct btrfs_root *log_root_tree; diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index b4f0f9531119..593fb7930a37 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -322,6 +322,7 @@ struct btrfs_ioctl_fs_info_args { #define BTRFS_FEATURE_INCOMPAT_RAID1C34 (1ULL << 11) #define BTRFS_FEATURE_INCOMPAT_ZONED (1ULL << 12) #define BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2 (1ULL << 13) +#define BTRFS_FEATURE_INCOMPAT_RAID_STRIPE_TREE (1ULL << 14) struct btrfs_ioctl_feature_flags { __u64 compat_flags;