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[174.109.172.136]) by smtp.gmail.com with ESMTPSA id c22sm860666qtc.89.2021.08.23.13.15.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Aug 2021 13:15:09 -0700 (PDT) From: Josef Bacik To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: [PATCH v2 08/10] btrfs-progs: add add_block_group_free_space helper Date: Mon, 23 Aug 2021 16:14:53 -0400 Message-Id: <2baa0ddabfc39080848872a7ad4841482ef985e5.1629749291.git.josef@toxicpanda.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This exists in the kernel free-space-tree.c but not in progs. We need it to generate the free space items for new block groups, which is needed when we start creating the free space tree in make_btrfs(). Signed-off-by: Josef Bacik --- kernel-shared/extent-tree.c | 2 ++ kernel-shared/free-space-tree.c | 26 ++++++++++++++++++++++++++ kernel-shared/free-space-tree.h | 2 ++ 3 files changed, 30 insertions(+) diff --git a/kernel-shared/extent-tree.c b/kernel-shared/extent-tree.c index 056a9256..b5b43c10 100644 --- a/kernel-shared/extent-tree.c +++ b/kernel-shared/extent-tree.c @@ -2816,6 +2816,8 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, ret = btrfs_insert_item(trans, extent_root, &key, &bgi, sizeof(bgi)); BUG_ON(ret); + add_block_group_free_space(trans, cache); + return 0; } diff --git a/kernel-shared/free-space-tree.c b/kernel-shared/free-space-tree.c index 7f589dfe..1e127e31 100644 --- a/kernel-shared/free-space-tree.c +++ b/kernel-shared/free-space-tree.c @@ -986,6 +986,32 @@ out: return ret; } +int add_block_group_free_space(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group) +{ + struct btrfs_path *path; + int ret; + + if (!btrfs_fs_compat_ro(trans->fs_info, FREE_SPACE_TREE)) + return 0; + + path = btrfs_alloc_path(); + if (!path) + return -ENOMEM; + + ret = add_new_free_space_info(trans, block_group, path); + if (ret) + goto out; + ret = __add_to_free_space_tree(trans, block_group, path, + block_group->start, + block_group->length); +out: + btrfs_free_path(path); + if (ret) + btrfs_abort_transaction(trans, ret); + return ret; +} + int populate_free_space_tree(struct btrfs_trans_handle *trans, struct btrfs_block_group *block_group) { diff --git a/kernel-shared/free-space-tree.h b/kernel-shared/free-space-tree.h index 3d32e167..4f6aa5fc 100644 --- a/kernel-shared/free-space-tree.h +++ b/kernel-shared/free-space-tree.h @@ -34,5 +34,7 @@ int add_to_free_space_tree(struct btrfs_trans_handle *trans, u64 start, int remove_from_free_space_tree(struct btrfs_trans_handle *trans, u64 start, u64 size); int btrfs_create_free_space_tree(struct btrfs_fs_info *info); +int add_block_group_free_space(struct btrfs_trans_handle *trans, + struct btrfs_block_group *block_group); #endif -- 2.26.3