| /* |
| * Copyright (C) 2007 Oracle. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License v2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #include "ctree.h" |
| #include "disk-io.h" |
| #include "print-tree.h" |
| |
| static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) |
| { |
| int num_stripes = btrfs_chunk_num_stripes(eb, chunk); |
| int i; |
| printk("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n", |
| (unsigned long long)btrfs_chunk_length(eb, chunk), |
| (unsigned long long)btrfs_chunk_owner(eb, chunk), |
| (unsigned long long)btrfs_chunk_type(eb, chunk), |
| num_stripes); |
| for (i = 0 ; i < num_stripes ; i++) { |
| printk("\t\t\tstripe %d devid %llu offset %llu\n", i, |
| (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i), |
| (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i)); |
| } |
| } |
| static void print_dev_item(struct extent_buffer *eb, |
| struct btrfs_dev_item *dev_item) |
| { |
| printk("\t\tdev item devid %llu " |
| "total_bytes %llu bytes used %Lu\n", |
| (unsigned long long)btrfs_device_id(eb, dev_item), |
| (unsigned long long)btrfs_device_total_bytes(eb, dev_item), |
| (unsigned long long)btrfs_device_bytes_used(eb, dev_item)); |
| } |
| void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) |
| { |
| int i; |
| u32 nr = btrfs_header_nritems(l); |
| struct btrfs_item *item; |
| struct btrfs_extent_item *ei; |
| struct btrfs_root_item *ri; |
| struct btrfs_dir_item *di; |
| struct btrfs_inode_item *ii; |
| struct btrfs_block_group_item *bi; |
| struct btrfs_file_extent_item *fi; |
| struct btrfs_key key; |
| struct btrfs_key found_key; |
| struct btrfs_extent_ref *ref; |
| struct btrfs_dev_extent *dev_extent; |
| u32 type; |
| |
| printk("leaf %llu total ptrs %d free space %d\n", |
| (unsigned long long)btrfs_header_bytenr(l), nr, |
| btrfs_leaf_free_space(root, l)); |
| for (i = 0 ; i < nr ; i++) { |
| item = btrfs_item_nr(l, i); |
| btrfs_item_key_to_cpu(l, &key, i); |
| type = btrfs_key_type(&key); |
| printk("\titem %d key (%llu %x %llu) itemoff %d itemsize %d\n", |
| i, |
| (unsigned long long)key.objectid, type, |
| (unsigned long long)key.offset, |
| btrfs_item_offset(l, item), btrfs_item_size(l, item)); |
| switch (type) { |
| case BTRFS_INODE_ITEM_KEY: |
| ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); |
| printk("\t\tinode generation %llu size %llu mode %o\n", |
| (unsigned long long)btrfs_inode_generation(l, ii), |
| (unsigned long long)btrfs_inode_size(l, ii), |
| btrfs_inode_mode(l, ii)); |
| break; |
| case BTRFS_DIR_ITEM_KEY: |
| di = btrfs_item_ptr(l, i, struct btrfs_dir_item); |
| btrfs_dir_item_key_to_cpu(l, di, &found_key); |
| printk("\t\tdir oid %llu type %u\n", |
| (unsigned long long)found_key.objectid, |
| btrfs_dir_type(l, di)); |
| break; |
| case BTRFS_ROOT_ITEM_KEY: |
| ri = btrfs_item_ptr(l, i, struct btrfs_root_item); |
| printk("\t\troot data bytenr %llu refs %u\n", |
| (unsigned long long)btrfs_disk_root_bytenr(l, ri), |
| btrfs_disk_root_refs(l, ri)); |
| break; |
| case BTRFS_EXTENT_ITEM_KEY: |
| ei = btrfs_item_ptr(l, i, struct btrfs_extent_item); |
| printk("\t\textent data refs %u\n", |
| btrfs_extent_refs(l, ei)); |
| break; |
| case BTRFS_EXTENT_REF_KEY: |
| ref = btrfs_item_ptr(l, i, struct btrfs_extent_ref); |
| printk("\t\textent back ref root %llu gen %llu " |
| "owner %llu offset %llu num_refs %lu\n", |
| (unsigned long long)btrfs_ref_root(l, ref), |
| (unsigned long long)btrfs_ref_generation(l, ref), |
| (unsigned long long)btrfs_ref_objectid(l, ref), |
| (unsigned long long)btrfs_ref_offset(l, ref), |
| (unsigned long)btrfs_ref_num_refs(l, ref)); |
| break; |
| |
| case BTRFS_EXTENT_DATA_KEY: |
| fi = btrfs_item_ptr(l, i, |
| struct btrfs_file_extent_item); |
| if (btrfs_file_extent_type(l, fi) == |
| BTRFS_FILE_EXTENT_INLINE) { |
| printk("\t\tinline extent data size %u\n", |
| btrfs_file_extent_inline_len(l, item)); |
| break; |
| } |
| printk("\t\textent data disk bytenr %llu nr %llu\n", |
| (unsigned long long)btrfs_file_extent_disk_bytenr(l, fi), |
| (unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi)); |
| printk("\t\textent data offset %llu nr %llu\n", |
| (unsigned long long)btrfs_file_extent_offset(l, fi), |
| (unsigned long long)btrfs_file_extent_num_bytes(l, fi)); |
| break; |
| case BTRFS_BLOCK_GROUP_ITEM_KEY: |
| bi = btrfs_item_ptr(l, i, |
| struct btrfs_block_group_item); |
| printk("\t\tblock group used %llu\n", |
| (unsigned long long)btrfs_disk_block_group_used(l, bi)); |
| break; |
| case BTRFS_CHUNK_ITEM_KEY: |
| print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); |
| break; |
| case BTRFS_DEV_ITEM_KEY: |
| print_dev_item(l, btrfs_item_ptr(l, i, |
| struct btrfs_dev_item)); |
| break; |
| case BTRFS_DEV_EXTENT_KEY: |
| dev_extent = btrfs_item_ptr(l, i, |
| struct btrfs_dev_extent); |
| printk("\t\tdev extent chunk_tree %llu\n" |
| "\t\tchunk objectid %llu chunk offset %llu " |
| "length %llu\n", |
| (unsigned long long) |
| btrfs_dev_extent_chunk_tree(l, dev_extent), |
| (unsigned long long) |
| btrfs_dev_extent_chunk_objectid(l, dev_extent), |
| (unsigned long long) |
| btrfs_dev_extent_chunk_offset(l, dev_extent), |
| (unsigned long long) |
| btrfs_dev_extent_length(l, dev_extent)); |
| }; |
| } |
| } |
| |
| void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) |
| { |
| int i; u32 nr; |
| struct btrfs_key key; |
| int level; |
| |
| if (!c) |
| return; |
| nr = btrfs_header_nritems(c); |
| level = btrfs_header_level(c); |
| if (level == 0) { |
| btrfs_print_leaf(root, c); |
| return; |
| } |
| printk("node %llu level %d total ptrs %d free spc %u\n", |
| (unsigned long long)btrfs_header_bytenr(c), |
| btrfs_header_level(c), nr, |
| (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr); |
| for (i = 0; i < nr; i++) { |
| btrfs_node_key_to_cpu(c, &key, i); |
| printk("\tkey %d (%llu %u %llu) block %llu\n", |
| i, |
| (unsigned long long)key.objectid, |
| key.type, |
| (unsigned long long)key.offset, |
| (unsigned long long)btrfs_node_blockptr(c, i)); |
| } |
| for (i = 0; i < nr; i++) { |
| struct extent_buffer *next = read_tree_block(root, |
| btrfs_node_blockptr(c, i), |
| btrfs_level_size(root, level - 1), |
| btrfs_node_ptr_generation(c, i)); |
| if (btrfs_is_leaf(next) && |
| btrfs_header_level(c) != 1) |
| BUG(); |
| if (btrfs_header_level(next) != |
| btrfs_header_level(c) - 1) |
| BUG(); |
| btrfs_print_tree(root, next); |
| free_extent_buffer(next); |
| } |
| } |