From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:22441 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751060AbcDZDtf (ORCPT ); Mon, 25 Apr 2016 23:49:35 -0400 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.cz, Lu Fengqi Subject: [PATCH RFC 13/16] btrfs-progs: fsck: Introduce hub function for later fsck Date: Tue, 26 Apr 2016 11:49:00 +0800 Message-Id: <1461642543-4621-14-git-send-email-quwenruo@cn.fujitsu.com> In-Reply-To: <1461642543-4621-1-git-send-email-quwenruo@cn.fujitsu.com> References: <1461642543-4621-1-git-send-email-quwenruo@cn.fujitsu.com> MIME-Version: 1.0 Sender: linux-btrfs-owner@vger.kernel.org List-ID: From: Lu Fengqi Introduce a hub function, check_items() to check all known/valuable items and update related accounting like total_bytes and csum_bytes. Signed-off-by: Lu Fengqi Signed-off-by: Qu Wenruo --- cmds-check.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/cmds-check.c b/cmds-check.c index a02db07..db6fc8e 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -9472,6 +9472,88 @@ out: return -err; } +/* + * Hub function to check known items and update related accounting info + */ +static int check_leaf_items(struct btrfs_root *root, struct extent_buffer *eb) +{ + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_key key; + int slot = 0; + int type; + int metadata; + struct btrfs_extent_data_ref *dref; + int ret; + int err = 0; + +next: + btrfs_item_key_to_cpu(eb, &key, slot); + type = btrfs_key_type(&key); + + switch (type) { + case BTRFS_EXTENT_DATA_KEY: + ret = check_extent_data_item(root, eb, slot); + err |= -ret; + break; + case BTRFS_BLOCK_GROUP_ITEM_KEY: + ret = check_block_group_item(fs_info, eb, slot); + err |= -ret; + break; + case BTRFS_DEV_ITEM_KEY: + ret = check_dev_item(fs_info, eb, slot); + err |= -ret; + break; + case BTRFS_CHUNK_ITEM_KEY: + ret = check_chunk_item(fs_info, eb, slot); + err |= -ret; + break; + case BTRFS_DEV_EXTENT_KEY: + ret = check_dev_extent_item(fs_info, eb, slot); + err |= -ret; + break; + case BTRFS_EXTENT_ITEM_KEY: + case BTRFS_METADATA_ITEM_KEY: + metadata = type == BTRFS_METADATA_ITEM_KEY; + ret = check_extent_item(fs_info, eb, slot, metadata); + err |= -ret; + break; + case BTRFS_EXTENT_CSUM_KEY: + total_csum_bytes += btrfs_item_size_nr(eb, slot); + break; + case BTRFS_TREE_BLOCK_REF_KEY: + ret = check_tree_block_backref(fs_info, key.offset, + key.objectid, -1); + err |= -ret; + break; + case BTRFS_EXTENT_DATA_REF_KEY: + dref = btrfs_item_ptr(eb, slot, struct btrfs_extent_data_ref); + ret = check_extent_data_backref(fs_info, + btrfs_extent_data_ref_root(eb, dref), + btrfs_extent_data_ref_objectid(eb, dref), + btrfs_extent_data_ref_offset(eb, dref), + key.objectid, 0); + err |= -ret; + break; + case BTRFS_SHARED_BLOCK_REF_KEY: + ret = check_shared_block_backref(fs_info, key.offset, + key.objectid, -1); + err |= -ret; + break; + case BTRFS_SHARED_DATA_REF_KEY: + ret = check_shared_data_backref(fs_info, key.offset, + key.objectid); + err |= -ret; + break; + default: + break; + } + + if (++slot < btrfs_header_nritems(eb)) + goto next; + + return err; +} + static int btrfs_fsck_reinit_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, int overwrite) { -- 2.8.0