print-tree.c (c1362fd0f2fdebf5c56d505100ba37600b5c20a5) print-tree.c (6c75a589cb35b8ea5cf9a22f389981acf687ab85)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2007 Oracle. All rights reserved.
4 */
5
6#include "messages.h"
7#include "ctree.h"
8#include "disk-io.h"

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44 if (root_map[i].id == key->objectid)
45 return root_map[i].name;
46 }
47
48 snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", key->objectid);
49 return buf;
50}
51
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2007 Oracle. All rights reserved.
4 */
5
6#include "messages.h"
7#include "ctree.h"
8#include "disk-io.h"

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44 if (root_map[i].id == key->objectid)
45 return root_map[i].name;
46 }
47
48 snprintf(buf, BTRFS_ROOT_NAME_BUF_LEN, "%llu", key->objectid);
49 return buf;
50}
51
52static void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
52static void print_chunk(const struct extent_buffer *eb, struct btrfs_chunk *chunk)
53{
54 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
55 int i;
56 pr_info("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
57 btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
58 btrfs_chunk_type(eb, chunk), num_stripes);
59 for (i = 0 ; i < num_stripes ; i++) {
60 pr_info("\t\t\tstripe %d devid %llu offset %llu\n", i,
61 btrfs_stripe_devid_nr(eb, chunk, i),
62 btrfs_stripe_offset_nr(eb, chunk, i));
63 }
64}
53{
54 int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
55 int i;
56 pr_info("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n",
57 btrfs_chunk_length(eb, chunk), btrfs_chunk_owner(eb, chunk),
58 btrfs_chunk_type(eb, chunk), num_stripes);
59 for (i = 0 ; i < num_stripes ; i++) {
60 pr_info("\t\t\tstripe %d devid %llu offset %llu\n", i,
61 btrfs_stripe_devid_nr(eb, chunk, i),
62 btrfs_stripe_offset_nr(eb, chunk, i));
63 }
64}
65static void print_dev_item(struct extent_buffer *eb,
65static void print_dev_item(const struct extent_buffer *eb,
66 struct btrfs_dev_item *dev_item)
67{
68 pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
69 btrfs_device_id(eb, dev_item),
70 btrfs_device_total_bytes(eb, dev_item),
71 btrfs_device_bytes_used(eb, dev_item));
72}
66 struct btrfs_dev_item *dev_item)
67{
68 pr_info("\t\tdev item devid %llu total_bytes %llu bytes used %llu\n",
69 btrfs_device_id(eb, dev_item),
70 btrfs_device_total_bytes(eb, dev_item),
71 btrfs_device_bytes_used(eb, dev_item));
72}
73static void print_extent_data_ref(struct extent_buffer *eb,
73static void print_extent_data_ref(const struct extent_buffer *eb,
74 struct btrfs_extent_data_ref *ref)
75{
76 pr_cont("extent data backref root %llu objectid %llu offset %llu count %u\n",
77 btrfs_extent_data_ref_root(eb, ref),
78 btrfs_extent_data_ref_objectid(eb, ref),
79 btrfs_extent_data_ref_offset(eb, ref),
80 btrfs_extent_data_ref_count(eb, ref));
81}
82
74 struct btrfs_extent_data_ref *ref)
75{
76 pr_cont("extent data backref root %llu objectid %llu offset %llu count %u\n",
77 btrfs_extent_data_ref_root(eb, ref),
78 btrfs_extent_data_ref_objectid(eb, ref),
79 btrfs_extent_data_ref_offset(eb, ref),
80 btrfs_extent_data_ref_count(eb, ref));
81}
82
83static void print_extent_item(struct extent_buffer *eb, int slot, int type)
83static void print_extent_item(const struct extent_buffer *eb, int slot, int type)
84{
85 struct btrfs_extent_item *ei;
86 struct btrfs_extent_inline_ref *iref;
87 struct btrfs_extent_data_ref *dref;
88 struct btrfs_shared_data_ref *sref;
89 struct btrfs_disk_key key;
90 unsigned long end;
91 unsigned long ptr;

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164 eb->start, type);
165 return;
166 }
167 ptr += btrfs_extent_inline_ref_size(type);
168 }
169 WARN_ON(ptr > end);
170}
171
84{
85 struct btrfs_extent_item *ei;
86 struct btrfs_extent_inline_ref *iref;
87 struct btrfs_extent_data_ref *dref;
88 struct btrfs_shared_data_ref *sref;
89 struct btrfs_disk_key key;
90 unsigned long end;
91 unsigned long ptr;

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164 eb->start, type);
165 return;
166 }
167 ptr += btrfs_extent_inline_ref_size(type);
168 }
169 WARN_ON(ptr > end);
170}
171
172static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
172static void print_uuid_item(const struct extent_buffer *l, unsigned long offset,
173 u32 item_size)
174{
175 if (!IS_ALIGNED(item_size, sizeof(u64))) {
176 pr_warn("BTRFS: uuid item with illegal size %lu!\n",
177 (unsigned long)item_size);
178 return;
179 }
180 while (item_size) {

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186 offset += sizeof(u64);
187 }
188}
189
190/*
191 * Helper to output refs and locking status of extent buffer. Useful to debug
192 * race condition related problems.
193 */
173 u32 item_size)
174{
175 if (!IS_ALIGNED(item_size, sizeof(u64))) {
176 pr_warn("BTRFS: uuid item with illegal size %lu!\n",
177 (unsigned long)item_size);
178 return;
179 }
180 while (item_size) {

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186 offset += sizeof(u64);
187 }
188}
189
190/*
191 * Helper to output refs and locking status of extent buffer. Useful to debug
192 * race condition related problems.
193 */
194static void print_eb_refs_lock(struct extent_buffer *eb)
194static void print_eb_refs_lock(const struct extent_buffer *eb)
195{
196#ifdef CONFIG_BTRFS_DEBUG
197 btrfs_info(eb->fs_info, "refs %u lock_owner %u current %u",
198 atomic_read(&eb->refs), eb->lock_owner, current->pid);
199#endif
200}
201
195{
196#ifdef CONFIG_BTRFS_DEBUG
197 btrfs_info(eb->fs_info, "refs %u lock_owner %u current %u",
198 atomic_read(&eb->refs), eb->lock_owner, current->pid);
199#endif
200}
201
202void btrfs_print_leaf(struct extent_buffer *l)
202void btrfs_print_leaf(const struct extent_buffer *l)
203{
204 struct btrfs_fs_info *fs_info;
205 int i;
206 u32 type, nr;
207 struct btrfs_root_item *ri;
208 struct btrfs_dir_item *di;
209 struct btrfs_inode_item *ii;
210 struct btrfs_block_group_item *bi;

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350 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
351 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
352 btrfs_item_size(l, i));
353 break;
354 }
355 }
356}
357
203{
204 struct btrfs_fs_info *fs_info;
205 int i;
206 u32 type, nr;
207 struct btrfs_root_item *ri;
208 struct btrfs_dir_item *di;
209 struct btrfs_inode_item *ii;
210 struct btrfs_block_group_item *bi;

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350 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
351 print_uuid_item(l, btrfs_item_ptr_offset(l, i),
352 btrfs_item_size(l, i));
353 break;
354 }
355 }
356}
357
358void btrfs_print_tree(struct extent_buffer *c, bool follow)
358void btrfs_print_tree(const struct extent_buffer *c, bool follow)
359{
360 struct btrfs_fs_info *fs_info;
361 int i; u32 nr;
362 struct btrfs_key key;
363 int level;
364
365 if (!c)
366 return;

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360 struct btrfs_fs_info *fs_info;
361 int i; u32 nr;
362 struct btrfs_key key;
363 int level;
364
365 if (!c)
366 return;

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