mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-28 17:12:17 +00:00
7b20da8d52
This fixes up the progs to properly deal with skinny metadata. This adds the -x option to mkfs and btrfstune for enabling the skinny metadata option. This also makes changes to fsck so it can properly deal with the skinny metadata entries. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com>
911 lines
27 KiB
C
911 lines
27 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <uuid/uuid.h>
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#include "kerncompat.h"
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#include "radix-tree.h"
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#include "ctree.h"
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#include "disk-io.h"
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#include "print-tree.h"
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static int print_dir_item(struct extent_buffer *eb, struct btrfs_item *item,
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struct btrfs_dir_item *di)
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{
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u32 total;
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u32 cur = 0;
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u32 len;
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u32 name_len;
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u32 data_len;
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char namebuf[BTRFS_NAME_LEN];
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struct btrfs_disk_key location;
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total = btrfs_item_size(eb, item);
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while(cur < total) {
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btrfs_dir_item_key(eb, di, &location);
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printf("\t\tlocation ");
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btrfs_print_key(&location);
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printf(" type %u\n", btrfs_dir_type(eb, di));
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name_len = btrfs_dir_name_len(eb, di);
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data_len = btrfs_dir_data_len(eb, di);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len);
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printf("\t\tnamelen %u datalen %u name: %.*s\n",
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name_len, data_len, len, namebuf);
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if (data_len) {
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len = (data_len <= sizeof(namebuf))? data_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf,
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(unsigned long)(di + 1) + name_len, len);
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printf("\t\tdata %.*s\n", len, namebuf);
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}
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len = sizeof(*di) + name_len + data_len;
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di = (struct btrfs_dir_item *)((char *)di + len);
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cur += len;
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}
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return 0;
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}
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static int print_inode_extref_item(struct extent_buffer *eb,
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struct btrfs_item *item,
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struct btrfs_inode_extref *extref)
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{
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u32 total;
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u32 cur = 0;
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u32 len;
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u32 name_len = 0;
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u64 index = 0;
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u64 parent_objid;
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char namebuf[BTRFS_NAME_LEN];
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total = btrfs_item_size(eb, item);
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while (cur < total) {
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index = btrfs_inode_extref_index(eb, extref);
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name_len = btrfs_inode_extref_name_len(eb, extref);
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parent_objid = btrfs_inode_extref_parent(eb, extref);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(extref->name), len);
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printf("\t\tinode extref index %llu parent %llu namelen %u "
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"name: %.*s\n",
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(unsigned long long)index,
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(unsigned long long)parent_objid,
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name_len, len, namebuf);
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len = sizeof(*extref) + name_len;
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extref = (struct btrfs_inode_extref *)((char *)extref + len);
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cur += len;
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}
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return 0;
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}
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static int print_inode_ref_item(struct extent_buffer *eb, struct btrfs_item *item,
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struct btrfs_inode_ref *ref)
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{
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u32 total;
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u32 cur = 0;
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u32 len;
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u32 name_len;
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u64 index;
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char namebuf[BTRFS_NAME_LEN];
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total = btrfs_item_size(eb, item);
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while(cur < total) {
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name_len = btrfs_inode_ref_name_len(eb, ref);
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index = btrfs_inode_ref_index(eb, ref);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
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printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
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(unsigned long long)index, name_len, len, namebuf);
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len = sizeof(*ref) + name_len;
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ref = (struct btrfs_inode_ref *)((char *)ref + len);
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cur += len;
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}
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return 0;
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}
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static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
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{
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int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
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int i;
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printf("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
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(unsigned long long)btrfs_chunk_length(eb, chunk),
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(unsigned long long)btrfs_chunk_owner(eb, chunk),
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(unsigned long long)btrfs_chunk_type(eb, chunk),
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num_stripes);
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for (i = 0 ; i < num_stripes ; i++) {
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printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
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(unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
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(unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
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}
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}
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static void print_dev_item(struct extent_buffer *eb,
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struct btrfs_dev_item *dev_item)
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{
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printf("\t\tdev item devid %llu "
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"total_bytes %llu bytes used %Lu\n",
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(unsigned long long)btrfs_device_id(eb, dev_item),
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(unsigned long long)btrfs_device_total_bytes(eb, dev_item),
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(unsigned long long)btrfs_device_bytes_used(eb, dev_item));
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}
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static void print_uuids(struct extent_buffer *eb)
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{
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char fs_uuid[37];
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char chunk_uuid[37];
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u8 disk_uuid[BTRFS_UUID_SIZE];
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read_extent_buffer(eb, disk_uuid, (unsigned long)btrfs_header_fsid(eb),
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BTRFS_FSID_SIZE);
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fs_uuid[36] = '\0';
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uuid_unparse(disk_uuid, fs_uuid);
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read_extent_buffer(eb, disk_uuid,
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(unsigned long)btrfs_header_chunk_tree_uuid(eb),
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BTRFS_UUID_SIZE);
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chunk_uuid[36] = '\0';
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uuid_unparse(disk_uuid, chunk_uuid);
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printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
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}
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static void print_file_extent_item(struct extent_buffer *eb,
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struct btrfs_item *item,
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struct btrfs_file_extent_item *fi)
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{
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int extent_type = btrfs_file_extent_type(eb, fi);
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if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
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printf("\t\tinline extent data size %u "
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"ram %u compress %d\n",
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btrfs_file_extent_inline_item_len(eb, item),
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btrfs_file_extent_inline_len(eb, fi),
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btrfs_file_extent_compression(eb, fi));
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return;
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}
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if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
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printf("\t\tprealloc data disk byte %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
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(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
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printf("\t\tprealloc data offset %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_offset(eb, fi),
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(unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
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return;
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}
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printf("\t\textent data disk byte %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
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(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
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printf("\t\textent data offset %llu nr %llu ram %llu\n",
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(unsigned long long)btrfs_file_extent_offset(eb, fi),
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(unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
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(unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
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printf("\t\textent compression %d\n",
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btrfs_file_extent_compression(eb, fi));
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}
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static void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
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{
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struct btrfs_extent_item *ei;
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struct btrfs_extent_inline_ref *iref;
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struct btrfs_extent_data_ref *dref;
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struct btrfs_shared_data_ref *sref;
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struct btrfs_disk_key key;
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unsigned long end;
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unsigned long ptr;
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int type;
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u32 item_size = btrfs_item_size_nr(eb, slot);
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u64 flags;
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u64 offset;
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if (item_size < sizeof(*ei)) {
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#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
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struct btrfs_extent_item_v0 *ei0;
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BUG_ON(item_size != sizeof(*ei0));
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ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
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printf("\t\textent refs %u\n",
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btrfs_extent_refs_v0(eb, ei0));
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return;
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#else
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BUG();
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#endif
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}
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ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
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flags = btrfs_extent_flags(eb, ei);
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printf("\t\textent refs %llu gen %llu flags %llu\n",
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(unsigned long long)btrfs_extent_refs(eb, ei),
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(unsigned long long)btrfs_extent_generation(eb, ei),
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(unsigned long long)flags);
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if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
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struct btrfs_tree_block_info *info;
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info = (struct btrfs_tree_block_info *)(ei + 1);
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btrfs_tree_block_key(eb, info, &key);
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printf("\t\ttree block ");
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btrfs_print_key(&key);
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printf(" level %d\n", btrfs_tree_block_level(eb, info));
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iref = (struct btrfs_extent_inline_ref *)(info + 1);
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} else if (metadata) {
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struct btrfs_key tmp;
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btrfs_item_key_to_cpu(eb, &tmp, slot);
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printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
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iref = (struct btrfs_extent_inline_ref *)(ei + 1);
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} else{
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iref = (struct btrfs_extent_inline_ref *)(ei + 1);
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}
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ptr = (unsigned long)iref;
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end = (unsigned long)ei + item_size;
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while (ptr < end) {
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iref = (struct btrfs_extent_inline_ref *)ptr;
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type = btrfs_extent_inline_ref_type(eb, iref);
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offset = btrfs_extent_inline_ref_offset(eb, iref);
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switch (type) {
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case BTRFS_TREE_BLOCK_REF_KEY:
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printf("\t\ttree block backref root %llu\n",
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(unsigned long long)offset);
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break;
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case BTRFS_SHARED_BLOCK_REF_KEY:
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printf("\t\tshared block backref parent %llu\n",
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(unsigned long long)offset);
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break;
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case BTRFS_EXTENT_DATA_REF_KEY:
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dref = (struct btrfs_extent_data_ref *)(&iref->offset);
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printf("\t\textent data backref root %llu "
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"objectid %llu offset %llu count %u\n",
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(unsigned long long)btrfs_extent_data_ref_root(eb, dref),
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(unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
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(unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
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btrfs_extent_data_ref_count(eb, dref));
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break;
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case BTRFS_SHARED_DATA_REF_KEY:
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sref = (struct btrfs_shared_data_ref *)(iref + 1);
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printf("\t\tshared data backref parent %llu count %u\n",
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(unsigned long long)offset,
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btrfs_shared_data_ref_count(eb, sref));
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break;
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default:
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return;
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}
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ptr += btrfs_extent_inline_ref_size(type);
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}
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WARN_ON(ptr > end);
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}
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#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
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static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
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{
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struct btrfs_extent_ref_v0 *ref0;
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ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
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printf("\t\textent back ref root %llu gen %llu "
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"owner %llu num_refs %lu\n",
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(unsigned long long)btrfs_ref_root_v0(eb, ref0),
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(unsigned long long)btrfs_ref_generation_v0(eb, ref0),
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(unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
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(unsigned long)btrfs_ref_count_v0(eb, ref0));
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}
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#endif
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static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag)
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{
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struct btrfs_root_ref *ref;
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char namebuf[BTRFS_NAME_LEN];
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int namelen;
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ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
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namelen = btrfs_root_ref_name_len(leaf, ref);
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read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
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printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
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(unsigned long long)btrfs_root_ref_dirid(leaf, ref),
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(unsigned long long)btrfs_root_ref_sequence(leaf, ref),
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namelen, namebuf);
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}
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static int count_bytes(void *buf, int len, char b)
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{
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int cnt = 0;
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int i;
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for (i = 0; i < len; i++) {
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if (((char*)buf)[i] == b)
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cnt++;
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}
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return cnt;
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}
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static void print_root(struct extent_buffer *leaf, int slot)
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{
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struct btrfs_root_item *ri;
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struct btrfs_root_item root_item;
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int len;
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char uuid_str[128];
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ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
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len = btrfs_item_size_nr(leaf, slot);
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memset(&root_item, 0, sizeof(root_item));
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read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
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printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu\n",
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(unsigned long long)btrfs_root_bytenr(&root_item),
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btrfs_root_level(&root_item),
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(unsigned long long)btrfs_root_dirid(&root_item),
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btrfs_root_refs(&root_item),
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(unsigned long long)btrfs_root_generation(&root_item));
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if (root_item.generation == root_item.generation_v2) {
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uuid_unparse(root_item.uuid, uuid_str);
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printf("\t\tuuid %s\n", uuid_str);
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if (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
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uuid_unparse(root_item.parent_uuid, uuid_str);
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printf("\t\tparent_uuid %s\n", uuid_str);
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}
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if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
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uuid_unparse(root_item.received_uuid, uuid_str);
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printf("\t\treceived_uuid %s\n", uuid_str);
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}
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if (root_item.ctransid) {
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printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
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btrfs_root_ctransid(&root_item),
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btrfs_root_otransid(&root_item),
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btrfs_root_stransid(&root_item),
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btrfs_root_rtransid(&root_item));
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}
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}
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if (btrfs_root_refs(&root_item) == 0) {
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struct btrfs_key drop_key;
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btrfs_disk_key_to_cpu(&drop_key,
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&root_item.drop_progress);
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printf("\t\tdrop ");
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btrfs_print_key(&root_item.drop_progress);
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printf(" level %d\n", root_item.drop_level);
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}
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}
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static void print_free_space_header(struct extent_buffer *leaf, int slot)
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{
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struct btrfs_free_space_header *header;
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struct btrfs_disk_key location;
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header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
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btrfs_free_space_key(leaf, header, &location);
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printf("\t\tlocation ");
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btrfs_print_key(&location);
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printf("\n");
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printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
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(unsigned long long)btrfs_free_space_generation(leaf, header),
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(unsigned long long)btrfs_free_space_entries(leaf, header),
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(unsigned long long)btrfs_free_space_bitmaps(leaf, header));
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}
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static void print_key_type(u64 objectid, u8 type)
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{
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if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
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printf("UNTYPED");
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return;
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}
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switch (type) {
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case BTRFS_INODE_ITEM_KEY:
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printf("INODE_ITEM");
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break;
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case BTRFS_INODE_REF_KEY:
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printf("INODE_REF");
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break;
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case BTRFS_INODE_EXTREF_KEY:
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printf("INODE_EXTREF");
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break;
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case BTRFS_DIR_ITEM_KEY:
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printf("DIR_ITEM");
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break;
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case BTRFS_DIR_INDEX_KEY:
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printf("DIR_INDEX");
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break;
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case BTRFS_DIR_LOG_ITEM_KEY:
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printf("DIR_LOG_ITEM");
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break;
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case BTRFS_DIR_LOG_INDEX_KEY:
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printf("DIR_LOG_INDEX");
|
|
break;
|
|
case BTRFS_XATTR_ITEM_KEY:
|
|
printf("XATTR_ITEM");
|
|
break;
|
|
case BTRFS_ORPHAN_ITEM_KEY:
|
|
printf("ORPHAN_ITEM");
|
|
break;
|
|
case BTRFS_ROOT_ITEM_KEY:
|
|
printf("ROOT_ITEM");
|
|
break;
|
|
case BTRFS_ROOT_REF_KEY:
|
|
printf("ROOT_REF");
|
|
break;
|
|
case BTRFS_ROOT_BACKREF_KEY:
|
|
printf("ROOT_BACKREF");
|
|
break;
|
|
case BTRFS_EXTENT_ITEM_KEY:
|
|
printf("EXTENT_ITEM");
|
|
break;
|
|
case BTRFS_METADATA_ITEM_KEY:
|
|
printf("METADATA_ITEM");
|
|
break;
|
|
case BTRFS_TREE_BLOCK_REF_KEY:
|
|
printf("TREE_BLOCK_REF");
|
|
break;
|
|
case BTRFS_SHARED_BLOCK_REF_KEY:
|
|
printf("SHARED_BLOCK_REF");
|
|
break;
|
|
case BTRFS_EXTENT_DATA_REF_KEY:
|
|
printf("EXTENT_DATA_REF");
|
|
break;
|
|
case BTRFS_SHARED_DATA_REF_KEY:
|
|
printf("SHARED_DATA_REF");
|
|
break;
|
|
case BTRFS_EXTENT_REF_V0_KEY:
|
|
printf("EXTENT_REF_V0");
|
|
break;
|
|
case BTRFS_CSUM_ITEM_KEY:
|
|
printf("CSUM_ITEM");
|
|
break;
|
|
case BTRFS_EXTENT_CSUM_KEY:
|
|
printf("EXTENT_CSUM");
|
|
break;
|
|
case BTRFS_EXTENT_DATA_KEY:
|
|
printf("EXTENT_DATA");
|
|
break;
|
|
case BTRFS_BLOCK_GROUP_ITEM_KEY:
|
|
printf("BLOCK_GROUP_ITEM");
|
|
break;
|
|
case BTRFS_CHUNK_ITEM_KEY:
|
|
printf("CHUNK_ITEM");
|
|
break;
|
|
case BTRFS_DEV_ITEM_KEY:
|
|
printf("DEV_ITEM");
|
|
break;
|
|
case BTRFS_DEV_EXTENT_KEY:
|
|
printf("DEV_EXTENT");
|
|
break;
|
|
case BTRFS_BALANCE_ITEM_KEY:
|
|
printf("BALANCE_ITEM");
|
|
break;
|
|
case BTRFS_DEV_REPLACE_KEY:
|
|
printf("DEV_REPLACE_ITEM");
|
|
break;
|
|
case BTRFS_STRING_ITEM_KEY:
|
|
printf("STRING_ITEM");
|
|
break;
|
|
case BTRFS_QGROUP_STATUS_KEY:
|
|
printf("BTRFS_STATUS_KEY");
|
|
break;
|
|
case BTRFS_QGROUP_RELATION_KEY:
|
|
printf("BTRFS_QGROUP_RELATION_KEY");
|
|
break;
|
|
case BTRFS_QGROUP_INFO_KEY:
|
|
printf("BTRFS_QGROUP_INFO_KEY");
|
|
break;
|
|
case BTRFS_QGROUP_LIMIT_KEY:
|
|
printf("BTRFS_QGROUP_LIMIT_KEY");
|
|
break;
|
|
case BTRFS_DEV_STATS_KEY:
|
|
printf("DEV_STATS_ITEM");
|
|
break;
|
|
default:
|
|
printf("UNKNOWN.%d", type);
|
|
};
|
|
}
|
|
|
|
static void print_objectid(u64 objectid, u8 type)
|
|
{
|
|
if (type == BTRFS_DEV_EXTENT_KEY) {
|
|
printf("%llu", (unsigned long long)objectid); /* device id */
|
|
return;
|
|
}
|
|
switch (type) {
|
|
case BTRFS_QGROUP_RELATION_KEY:
|
|
printf("%llu/%llu", objectid >> 48,
|
|
objectid & ((1ll << 48) - 1));
|
|
return;
|
|
}
|
|
|
|
switch (objectid) {
|
|
case BTRFS_ROOT_TREE_OBJECTID:
|
|
if (type == BTRFS_DEV_ITEM_KEY)
|
|
printf("DEV_ITEMS");
|
|
else
|
|
printf("ROOT_TREE");
|
|
break;
|
|
case BTRFS_EXTENT_TREE_OBJECTID:
|
|
printf("EXTENT_TREE");
|
|
break;
|
|
case BTRFS_CHUNK_TREE_OBJECTID:
|
|
printf("CHUNK_TREE");
|
|
break;
|
|
case BTRFS_DEV_TREE_OBJECTID:
|
|
printf("DEV_TREE");
|
|
break;
|
|
case BTRFS_FS_TREE_OBJECTID:
|
|
printf("FS_TREE");
|
|
break;
|
|
case BTRFS_ROOT_TREE_DIR_OBJECTID:
|
|
printf("ROOT_TREE_DIR");
|
|
break;
|
|
case BTRFS_CSUM_TREE_OBJECTID:
|
|
printf("CSUM_TREE");
|
|
break;
|
|
case BTRFS_BALANCE_OBJECTID:
|
|
printf("BALANCE");
|
|
break;
|
|
case BTRFS_ORPHAN_OBJECTID:
|
|
printf("ORPHAN");
|
|
break;
|
|
case BTRFS_TREE_LOG_OBJECTID:
|
|
printf("TREE_LOG");
|
|
break;
|
|
case BTRFS_TREE_LOG_FIXUP_OBJECTID:
|
|
printf("LOG_FIXUP");
|
|
break;
|
|
case BTRFS_TREE_RELOC_OBJECTID:
|
|
printf("TREE_RELOC");
|
|
break;
|
|
case BTRFS_DATA_RELOC_TREE_OBJECTID:
|
|
printf("DATA_RELOC_TREE");
|
|
break;
|
|
case BTRFS_EXTENT_CSUM_OBJECTID:
|
|
printf("EXTENT_CSUM");
|
|
break;
|
|
case BTRFS_FREE_SPACE_OBJECTID:
|
|
printf("FREE_SPACE");
|
|
break;
|
|
case BTRFS_FREE_INO_OBJECTID:
|
|
printf("FREE_INO");
|
|
break;
|
|
case BTRFS_QUOTA_TREE_OBJECTID:
|
|
printf("QUOTA_TREE");
|
|
break;
|
|
case BTRFS_MULTIPLE_OBJECTIDS:
|
|
printf("MULTIPLE");
|
|
break;
|
|
case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
|
|
if (type == BTRFS_CHUNK_ITEM_KEY) {
|
|
printf("FIRST_CHUNK_TREE");
|
|
break;
|
|
}
|
|
/* fall-thru */
|
|
default:
|
|
printf("%llu", (unsigned long long)objectid);
|
|
}
|
|
}
|
|
|
|
void btrfs_print_key(struct btrfs_disk_key *disk_key)
|
|
{
|
|
u64 objectid = btrfs_disk_key_objectid(disk_key);
|
|
u8 type = btrfs_disk_key_type(disk_key);
|
|
u64 offset = btrfs_disk_key_offset(disk_key);
|
|
|
|
printf("key (");
|
|
print_objectid(objectid, type);
|
|
printf(" ");
|
|
print_key_type(objectid, type);
|
|
switch (type) {
|
|
case BTRFS_QGROUP_RELATION_KEY:
|
|
case BTRFS_QGROUP_INFO_KEY:
|
|
case BTRFS_QGROUP_LIMIT_KEY:
|
|
printf(" %llu/%llu)", (unsigned long long)(offset >> 48),
|
|
(unsigned long long)(offset & ((1ll << 48) - 1)));
|
|
break;
|
|
default:
|
|
printf(" %llu)", (unsigned long long)offset);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
|
|
{
|
|
int i;
|
|
char *str;
|
|
struct btrfs_item *item;
|
|
struct btrfs_dir_item *di;
|
|
struct btrfs_inode_item *ii;
|
|
struct btrfs_file_extent_item *fi;
|
|
struct btrfs_block_group_item *bi;
|
|
struct btrfs_extent_data_ref *dref;
|
|
struct btrfs_shared_data_ref *sref;
|
|
struct btrfs_inode_ref *iref;
|
|
struct btrfs_inode_extref *iref2;
|
|
struct btrfs_dev_extent *dev_extent;
|
|
struct btrfs_disk_key disk_key;
|
|
struct btrfs_block_group_item bg_item;
|
|
struct btrfs_dir_log_item *dlog;
|
|
struct btrfs_qgroup_info_item *qg_info;
|
|
struct btrfs_qgroup_limit_item *qg_limit;
|
|
struct btrfs_qgroup_status_item *qg_status;
|
|
u32 nr = btrfs_header_nritems(l);
|
|
u64 objectid;
|
|
u32 type;
|
|
|
|
printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
|
|
(unsigned long long)btrfs_header_bytenr(l), nr,
|
|
btrfs_leaf_free_space(root, l),
|
|
(unsigned long long)btrfs_header_generation(l),
|
|
(unsigned long long)btrfs_header_owner(l));
|
|
print_uuids(l);
|
|
fflush(stdout);
|
|
for (i = 0 ; i < nr ; i++) {
|
|
item = btrfs_item_nr(l, i);
|
|
btrfs_item_key(l, &disk_key, i);
|
|
objectid = btrfs_disk_key_objectid(&disk_key);
|
|
type = btrfs_disk_key_type(&disk_key);
|
|
printf("\titem %d ", i);
|
|
btrfs_print_key(&disk_key);
|
|
printf(" itemoff %d itemsize %d\n",
|
|
btrfs_item_offset(l, item),
|
|
btrfs_item_size(l, item));
|
|
|
|
if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
|
|
print_free_space_header(l, i);
|
|
|
|
switch (type) {
|
|
case BTRFS_INODE_ITEM_KEY:
|
|
ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
|
|
printf("\t\tinode generation %llu transid %llu size %llu block group %llu mode %o links %u\n",
|
|
(unsigned long long)btrfs_inode_generation(l, ii),
|
|
(unsigned long long)btrfs_inode_transid(l, ii),
|
|
(unsigned long long)btrfs_inode_size(l, ii),
|
|
(unsigned long long)btrfs_inode_block_group(l,ii),
|
|
btrfs_inode_mode(l, ii),
|
|
btrfs_inode_nlink(l, ii));
|
|
break;
|
|
case BTRFS_INODE_REF_KEY:
|
|
iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref);
|
|
print_inode_ref_item(l, item, iref);
|
|
break;
|
|
case BTRFS_INODE_EXTREF_KEY:
|
|
iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref);
|
|
print_inode_extref_item(l, item, iref2);
|
|
break;
|
|
case BTRFS_DIR_ITEM_KEY:
|
|
case BTRFS_DIR_INDEX_KEY:
|
|
case BTRFS_XATTR_ITEM_KEY:
|
|
di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
|
|
print_dir_item(l, item, di);
|
|
break;
|
|
case BTRFS_DIR_LOG_INDEX_KEY:
|
|
case BTRFS_DIR_LOG_ITEM_KEY:
|
|
dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item);
|
|
printf("\t\tdir log end %Lu\n",
|
|
(unsigned long long)btrfs_dir_log_end(l, dlog));
|
|
break;
|
|
case BTRFS_ORPHAN_ITEM_KEY:
|
|
printf("\t\torphan item\n");
|
|
break;
|
|
case BTRFS_ROOT_ITEM_KEY:
|
|
print_root(l, i);
|
|
break;
|
|
case BTRFS_ROOT_REF_KEY:
|
|
print_root_ref(l, i, "ref");
|
|
break;
|
|
case BTRFS_ROOT_BACKREF_KEY:
|
|
print_root_ref(l, i, "backref");
|
|
break;
|
|
case BTRFS_EXTENT_ITEM_KEY:
|
|
print_extent_item(l, i, 0);
|
|
break;
|
|
case BTRFS_METADATA_ITEM_KEY:
|
|
print_extent_item(l, i, 1);
|
|
break;
|
|
case BTRFS_TREE_BLOCK_REF_KEY:
|
|
printf("\t\ttree block backref\n");
|
|
break;
|
|
case BTRFS_SHARED_BLOCK_REF_KEY:
|
|
printf("\t\tshared block backref\n");
|
|
break;
|
|
case BTRFS_EXTENT_DATA_REF_KEY:
|
|
dref = btrfs_item_ptr(l, i, struct btrfs_extent_data_ref);
|
|
printf("\t\textent data backref root %llu "
|
|
"objectid %llu offset %llu count %u\n",
|
|
(unsigned long long)btrfs_extent_data_ref_root(l, dref),
|
|
(unsigned long long)btrfs_extent_data_ref_objectid(l, dref),
|
|
(unsigned long long)btrfs_extent_data_ref_offset(l, dref),
|
|
btrfs_extent_data_ref_count(l, dref));
|
|
break;
|
|
case BTRFS_SHARED_DATA_REF_KEY:
|
|
sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref);
|
|
printf("\t\tshared data backref count %u\n",
|
|
btrfs_shared_data_ref_count(l, sref));
|
|
break;
|
|
case BTRFS_EXTENT_REF_V0_KEY:
|
|
#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
|
|
print_extent_ref_v0(l, i);
|
|
#else
|
|
BUG();
|
|
#endif
|
|
break;
|
|
case BTRFS_CSUM_ITEM_KEY:
|
|
printf("\t\tcsum item\n");
|
|
break;
|
|
case BTRFS_EXTENT_CSUM_KEY:
|
|
printf("\t\textent csum item\n");
|
|
break;
|
|
case BTRFS_EXTENT_DATA_KEY:
|
|
fi = btrfs_item_ptr(l, i,
|
|
struct btrfs_file_extent_item);
|
|
print_file_extent_item(l, item, fi);
|
|
break;
|
|
case BTRFS_BLOCK_GROUP_ITEM_KEY:
|
|
bi = btrfs_item_ptr(l, i,
|
|
struct btrfs_block_group_item);
|
|
read_extent_buffer(l, &bg_item, (unsigned long)bi,
|
|
sizeof(bg_item));
|
|
printf("\t\tblock group used %llu chunk_objectid %llu flags %llu\n",
|
|
(unsigned long long)btrfs_block_group_used(&bg_item),
|
|
(unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
|
|
(unsigned long long)btrfs_block_group_flags(&bg_item));
|
|
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);
|
|
printf("\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));
|
|
break;
|
|
case BTRFS_QGROUP_STATUS_KEY:
|
|
qg_status = btrfs_item_ptr(l, i,
|
|
struct btrfs_qgroup_status_item);
|
|
printf("\t\tversion %llu generation %llu flags %#llx "
|
|
"scan %lld\n",
|
|
(unsigned long long)
|
|
btrfs_qgroup_status_version(l, qg_status),
|
|
(unsigned long long)
|
|
btrfs_qgroup_status_generation(l, qg_status),
|
|
(unsigned long long)
|
|
btrfs_qgroup_status_flags(l, qg_status),
|
|
(unsigned long long)
|
|
btrfs_qgroup_status_scan(l, qg_status));
|
|
break;
|
|
case BTRFS_QGROUP_RELATION_KEY:
|
|
break;
|
|
case BTRFS_QGROUP_INFO_KEY:
|
|
qg_info = btrfs_item_ptr(l, i,
|
|
struct btrfs_qgroup_info_item);
|
|
printf("\t\tgeneration %llu\n"
|
|
"\t\treferenced %lld referenced compressed %lld\n"
|
|
"\t\texclusive %lld exclusive compressed %lld\n",
|
|
(unsigned long long)
|
|
btrfs_qgroup_info_generation(l, qg_info),
|
|
(long long)
|
|
btrfs_qgroup_info_referenced(l, qg_info),
|
|
(long long)
|
|
btrfs_qgroup_info_referenced_compressed(l,
|
|
qg_info),
|
|
(long long)
|
|
btrfs_qgroup_info_exclusive(l, qg_info),
|
|
(long long)
|
|
btrfs_qgroup_info_exclusive_compressed(l,
|
|
qg_info));
|
|
break;
|
|
case BTRFS_QGROUP_LIMIT_KEY:
|
|
qg_limit = btrfs_item_ptr(l, i,
|
|
struct btrfs_qgroup_limit_item);
|
|
printf("\t\tflags %llx\n"
|
|
"\t\tmax referenced %lld max exclusive %lld\n"
|
|
"\t\trsv referenced %lld rsv exclusive %lld\n",
|
|
(unsigned long long)
|
|
btrfs_qgroup_limit_flags(l, qg_limit),
|
|
(long long)
|
|
btrfs_qgroup_limit_max_referenced(l, qg_limit),
|
|
(long long)
|
|
btrfs_qgroup_limit_max_exclusive(l, qg_limit),
|
|
(long long)
|
|
btrfs_qgroup_limit_rsv_referenced(l, qg_limit),
|
|
(long long)
|
|
btrfs_qgroup_limit_rsv_exclusive(l, qg_limit));
|
|
break;
|
|
case BTRFS_STRING_ITEM_KEY:
|
|
/* dirty, but it's simple */
|
|
str = l->data + btrfs_item_ptr_offset(l, i);
|
|
printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str);
|
|
break;
|
|
case BTRFS_DEV_STATS_KEY:
|
|
printf("\t\tdevice stats\n");
|
|
break;
|
|
};
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
|
|
void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
|
|
{
|
|
int i;
|
|
u32 nr;
|
|
u32 size;
|
|
struct btrfs_disk_key disk_key;
|
|
struct btrfs_key key;
|
|
|
|
if (!eb)
|
|
return;
|
|
nr = btrfs_header_nritems(eb);
|
|
if (btrfs_is_leaf(eb)) {
|
|
btrfs_print_leaf(root, eb);
|
|
return;
|
|
}
|
|
printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
|
|
(unsigned long long)eb->start,
|
|
btrfs_header_level(eb), nr,
|
|
(u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
|
|
(unsigned long long)btrfs_header_generation(eb),
|
|
(unsigned long long)btrfs_header_owner(eb));
|
|
print_uuids(eb);
|
|
fflush(stdout);
|
|
size = btrfs_level_size(root, btrfs_header_level(eb) - 1);
|
|
for (i = 0; i < nr; i++) {
|
|
u64 blocknr = btrfs_node_blockptr(eb, i);
|
|
btrfs_node_key(eb, &disk_key, i);
|
|
btrfs_disk_key_to_cpu(&key, &disk_key);
|
|
printf("\t");
|
|
btrfs_print_key(&disk_key);
|
|
printf(" block %llu (%llu) gen %llu\n",
|
|
(unsigned long long)blocknr,
|
|
(unsigned long long)blocknr / size,
|
|
(unsigned long long)btrfs_node_ptr_generation(eb, i));
|
|
fflush(stdout);
|
|
}
|
|
if (!follow)
|
|
return;
|
|
|
|
for (i = 0; i < nr; i++) {
|
|
struct extent_buffer *next = read_tree_block(root,
|
|
btrfs_node_blockptr(eb, i),
|
|
size,
|
|
btrfs_node_ptr_generation(eb, i));
|
|
if (!next) {
|
|
fprintf(stderr, "failed to read %llu in tree %llu\n",
|
|
(unsigned long long)btrfs_node_blockptr(eb, i),
|
|
(unsigned long long)btrfs_header_owner(eb));
|
|
continue;
|
|
}
|
|
if (btrfs_is_leaf(next) &&
|
|
btrfs_header_level(eb) != 1)
|
|
BUG();
|
|
if (btrfs_header_level(next) !=
|
|
btrfs_header_level(eb) - 1)
|
|
BUG();
|
|
btrfs_print_tree(root, next, 1);
|
|
free_extent_buffer(next);
|
|
}
|
|
}
|