2 * Copyright (C) 2014 SUSE. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
18 * Authors: Mark Fasheh <mfasheh@suse.de>
23 #include <uuid/uuid.h>
24 #include "kerncompat.h"
25 #include "radix-tree.h"
28 #include "print-tree.h"
32 #include "qgroup-verify.h"
34 /*#define QGROUP_VERIFY_DEBUG*/
35 static unsigned long tot_extents_scanned = 0;
37 static void add_bytes(u64 root_objectid, u64 num_bytes, int exclusive);
43 struct btrfs_disk_key key;
44 struct btrfs_qgroup_info_item diskinfo;
46 struct btrfs_qgroup_info_item info;
48 struct rb_node rb_node;
53 unsigned int num_groups;
54 } counts = { .root = RB_ROOT };
56 struct rb_root by_bytenr = RB_ROOT;
59 * List of interior tree blocks. We walk this list after loading the
60 * extent tree to resolve implied refs. For each interior node we'll
61 * place a shared ref in the ref tree against each child object. This
62 * allows the shared ref resolving code to do the actual work later of
63 * finding roots to account against.
65 * An implied ref is when a tree block has refs on it that may not
66 * exist in any of its child nodes. Even though the refs might not
67 * exist further down the tree, the fact that our interior node has a
68 * ref means we need to account anything below it to all its roots.
70 struct ulist *tree_blocks = NULL; /* unode->val = bytenr, ->aux
71 * = tree_block pointer */
83 struct rb_node bytenr_node;
86 #ifdef QGROUP_VERIFY_DEBUG
87 static void print_ref(struct ref *ref)
89 printf("bytenr: %llu\t\tnum_bytes: %llu\t\t parent: %llu\t\t"
90 "root: %llu\n", ref->bytenr, ref->num_bytes,
91 ref->parent, ref->root);
94 static void print_all_refs(void)
96 unsigned long count = 0;
100 node = rb_first(&by_bytenr);
102 ref = rb_entry(node, struct ref, bytenr_node);
107 node = rb_next(node);
110 printf("%lu extents scanned with %lu refs in total.\n",
111 tot_extents_scanned, count);
116 * Store by bytenr in rbtree
118 * The tree is sorted in ascending order by bytenr, then parent, then
119 * root. Since full refs have a parent == 0, those will come before
122 static int compare_ref(struct ref *orig, u64 bytenr, u64 root, u64 parent)
124 if (bytenr < orig->bytenr)
126 if (bytenr > orig->bytenr)
129 if (parent < orig->parent)
131 if (parent > orig->parent)
134 if (root < orig->root)
136 if (root > orig->root)
143 * insert a new ref into the tree. returns the existing ref entry
144 * if one is already there.
146 static struct ref *insert_ref(struct ref *ref)
149 struct rb_node **p = &by_bytenr.rb_node;
150 struct rb_node *parent = NULL;
155 curr = rb_entry(parent, struct ref, bytenr_node);
157 ret = compare_ref(curr, ref->bytenr, ref->root, ref->parent);
166 rb_link_node(&ref->bytenr_node, parent, p);
167 rb_insert_color(&ref->bytenr_node, &by_bytenr);
172 * Partial search, returns the first ref with matching bytenr. Caller
173 * can walk forward from there.
175 * Leftmost refs will be full refs - this is used to our advantage
176 * when resolving roots.
178 static struct ref *find_ref_bytenr(u64 bytenr)
180 struct rb_node *n = by_bytenr.rb_node;
184 ref = rb_entry(n, struct ref, bytenr_node);
186 if (bytenr < ref->bytenr)
188 else if (bytenr > ref->bytenr)
191 /* Walk to the left to find the first item */
192 struct rb_node *node_left = rb_prev(&ref->bytenr_node);
193 struct ref *ref_left;
196 ref_left = rb_entry(node_left, struct ref,
198 if (ref_left->bytenr != ref->bytenr)
201 node_left = rb_prev(node_left);
209 static struct ref *find_ref(u64 bytenr, u64 root, u64 parent)
211 struct rb_node *n = by_bytenr.rb_node;
216 ref = rb_entry(n, struct ref, bytenr_node);
218 ret = compare_ref(ref, bytenr, root, parent);
229 static struct ref *alloc_ref(u64 bytenr, u64 root, u64 parent, u64 num_bytes)
231 struct ref *ref = find_ref(bytenr, root, parent);
233 BUG_ON(parent && root);
236 ref = calloc(1, sizeof(*ref));
238 ref->bytenr = bytenr;
240 ref->parent = parent;
241 ref->num_bytes = num_bytes;
249 static void free_ref_node(struct rb_node *node)
251 struct ref *ref = rb_entry(node, struct ref, bytenr_node);
255 FREE_RB_BASED_TREE(ref, free_ref_node);
258 * Resolves all the possible roots for the ref at parent.
260 static void find_parent_roots(struct ulist *roots, u64 parent)
263 struct rb_node *node;
266 * Search the rbtree for the first ref with bytenr == parent.
267 * Walk forward so long as bytenr == parent, adding resolved root ids.
268 * For each unresolved root, we recurse
270 ref = find_ref_bytenr(parent);
271 node = &ref->bytenr_node;
273 BUG_ON(ref->bytenr != parent);
277 * Random sanity check, are we actually getting the
280 struct rb_node *prev_node = rb_prev(&ref->bytenr_node);
283 prev = rb_entry(prev_node, struct ref, bytenr_node);
284 BUG_ON(prev->bytenr == parent);
290 ulist_add(roots, ref->root, 0, 0);
292 find_parent_roots(roots, ref->parent);
294 node = rb_next(node);
296 ref = rb_entry(node, struct ref, bytenr_node);
297 } while (node && ref->bytenr == parent);
300 static void print_subvol_info(u64 subvolid, u64 bytenr, u64 num_bytes,
301 struct ulist *roots);
303 * Account each ref. Walk the refs, for each set of refs in a
306 * - add the roots for direct refs to the ref roots ulist
308 * - resolve all possible roots for shared refs, insert each
309 * of those into ref_roots ulist (this is a recursive process)
311 * - Walk ref_roots ulist, adding extent bytes to each qgroup count that
312 * cooresponds to a found root.
314 static void account_all_refs(int do_qgroups, u64 search_subvol)
318 struct rb_node *node;
319 u64 bytenr, num_bytes;
320 struct ulist *roots = ulist_alloc(0);
321 struct ulist_iterator uiter;
322 struct ulist_node *unode;
324 node = rb_first(&by_bytenr);
328 ref = rb_entry(node, struct ref, bytenr_node);
330 * Walk forward through the list of refs for this
331 * bytenr, adding roots to our ulist. If it's a full
332 * ref, then we have the easy case. Otherwise we need
333 * to search for roots.
335 bytenr = ref->bytenr;
336 num_bytes = ref->num_bytes;
338 BUG_ON(ref->bytenr != bytenr);
339 BUG_ON(ref->num_bytes != num_bytes);
341 ulist_add(roots, ref->root, 0, 0);
343 find_parent_roots(roots, ref->parent);
346 * When we leave this inner loop, node is set
347 * to next in our tree and will be turned into
348 * a ref object up top
350 node = rb_next(node);
352 ref = rb_entry(node, struct ref, bytenr_node);
353 } while (node && ref->bytenr == bytenr);
356 * Now that we have all roots, we can properly account
357 * this extent against the corresponding qgroups.
359 if (roots->nnodes == 1)
365 print_subvol_info(search_subvol, bytenr, num_bytes,
368 ULIST_ITER_INIT(&uiter);
369 while ((unode = ulist_next(roots, &uiter))) {
370 BUG_ON(unode->val == 0ULL);
371 /* We only want to account fs trees */
372 if (is_fstree(unode->val) && do_qgroups)
373 add_bytes(unode->val, num_bytes, exclusive);
380 static u64 resolve_one_root(u64 bytenr)
382 struct ref *ref = find_ref_bytenr(bytenr);
388 return resolve_one_root(ref->parent);
391 static inline struct tree_block *unode_tree_block(struct ulist_node *unode)
393 return u64_to_ptr(unode->aux);
395 static inline u64 unode_bytenr(struct ulist_node *unode)
400 static int alloc_tree_block(u64 bytenr, u64 num_bytes, int level)
402 struct tree_block *block = calloc(1, sizeof(*block));
405 block->num_bytes = num_bytes;
406 block->level = level;
407 if (ulist_add(tree_blocks, bytenr, ptr_to_u64(block), 0) >= 0)
414 static void free_tree_blocks(void)
416 struct ulist_iterator uiter;
417 struct ulist_node *unode;
422 ULIST_ITER_INIT(&uiter);
423 while ((unode = ulist_next(tree_blocks, &uiter)))
424 free(unode_tree_block(unode));
425 ulist_free(tree_blocks);
429 #ifdef QGROUP_VERIFY_DEBUG
430 static void print_tree_block(u64 bytenr, struct tree_block *block)
433 struct rb_node *node;
435 printf("tree block: %llu\t\tlevel: %d\n", (unsigned long long)bytenr,
438 ref = find_ref_bytenr(bytenr);
439 node = &ref->bytenr_node;
442 node = rb_next(node);
444 ref = rb_entry(node, struct ref, bytenr_node);
445 } while (node && ref->bytenr == bytenr);
450 static void print_all_tree_blocks(void)
452 struct ulist_iterator uiter;
453 struct ulist_node *unode;
458 printf("Listing all found interior tree nodes:\n");
460 ULIST_ITER_INIT(&uiter);
461 while ((unode = ulist_next(tree_blocks, &uiter)))
462 print_tree_block(unode_bytenr(unode), unode_tree_block(unode));
466 static int add_refs_for_leaf_items(struct extent_buffer *eb, u64 ref_parent)
470 u64 bytenr, num_bytes;
471 struct btrfs_key key;
472 struct btrfs_disk_key disk_key;
473 struct btrfs_file_extent_item *fi;
475 nr = btrfs_header_nritems(eb);
476 for (i = 0; i < nr; i++) {
477 btrfs_item_key(eb, &disk_key, i);
478 btrfs_disk_key_to_cpu(&key, &disk_key);
480 if (key.type != BTRFS_EXTENT_DATA_KEY)
483 fi = btrfs_item_ptr(eb, i, struct btrfs_file_extent_item);
484 /* filter out: inline, disk_bytenr == 0, compressed?
485 * not if we can avoid it */
486 extent_type = btrfs_file_extent_type(eb, fi);
488 if (extent_type == BTRFS_FILE_EXTENT_INLINE)
491 bytenr = btrfs_file_extent_disk_bytenr(eb, fi);
495 num_bytes = btrfs_file_extent_disk_num_bytes(eb, fi);
496 if (alloc_ref(bytenr, 0, ref_parent, num_bytes) == NULL)
503 static int travel_tree(struct btrfs_fs_info *info, struct btrfs_root *root,
504 u64 bytenr, u64 num_bytes, u64 ref_parent)
507 struct extent_buffer *eb;
511 // printf("travel_tree: bytenr: %llu\tnum_bytes: %llu\tref_parent: %llu\n",
512 // bytenr, num_bytes, ref_parent);
514 eb = read_tree_block(root, bytenr, num_bytes, 0);
519 /* Don't add a ref for our starting tree block to itself */
520 if (bytenr != ref_parent) {
521 if (alloc_ref(bytenr, 0, ref_parent, num_bytes) == NULL)
525 if (btrfs_is_leaf(eb)) {
526 ret = add_refs_for_leaf_items(eb, ref_parent);
531 * Interior nodes are tuples of (key, bytenr) where key is the
532 * leftmost key in the tree block pointed to by bytenr. We
533 * don't have to care about key here, just follow the bytenr
536 nr = btrfs_header_nritems(eb);
537 for (i = 0; i < nr; i++) {
538 new_bytenr = btrfs_node_blockptr(eb, i);
539 new_num_bytes = btrfs_level_size(root,
540 btrfs_header_level(eb) - 1);
542 ret = travel_tree(info, root, new_bytenr, new_num_bytes,
547 free_extent_buffer(eb);
551 static int add_refs_for_implied(struct btrfs_fs_info *info, u64 bytenr,
552 struct tree_block *block)
555 u64 root_bytenr = resolve_one_root(bytenr);
556 struct btrfs_root *root;
557 struct btrfs_key key;
559 key.objectid = root_bytenr;
560 key.type = BTRFS_ROOT_ITEM_KEY;
561 key.offset = (u64)-1;
564 * XXX: Don't free the root object as we don't know whether it
565 * came off our fs_info struct or not.
567 root = btrfs_read_fs_root(info, &key);
568 if (!root || IS_ERR(root))
571 ret = travel_tree(info, root, bytenr, block->num_bytes, bytenr);
579 * Place shared refs in the ref tree for each child of an interior tree node.
581 static int map_implied_refs(struct btrfs_fs_info *info)
584 struct ulist_iterator uiter;
585 struct ulist_node *unode;
587 ULIST_ITER_INIT(&uiter);
588 while ((unode = ulist_next(tree_blocks, &uiter))) {
589 ret = add_refs_for_implied(info, unode_bytenr(unode),
590 unode_tree_block(unode));
599 * insert a new root into the tree. returns the existing root entry
600 * if one is already there. qgroupid is used
603 static int insert_count(struct qgroup_count *qc)
605 struct rb_node **p = &counts.root.rb_node;
606 struct rb_node *parent = NULL;
607 struct qgroup_count *curr;
611 curr = rb_entry(parent, struct qgroup_count, rb_node);
613 if (qc->qgroupid < curr->qgroupid)
615 else if (qc->qgroupid > curr->qgroupid)
621 rb_link_node(&qc->rb_node, parent, p);
622 rb_insert_color(&qc->rb_node, &counts.root);
626 static struct qgroup_count *find_count(u64 qgroupid)
628 struct rb_node *n = counts.root.rb_node;
629 struct qgroup_count *count;
632 count = rb_entry(n, struct qgroup_count, rb_node);
634 if (qgroupid < count->qgroupid)
636 else if (qgroupid > count->qgroupid)
644 static struct qgroup_count *alloc_count(struct btrfs_disk_key *key,
645 struct extent_buffer *leaf,
646 struct btrfs_qgroup_info_item *disk)
648 struct qgroup_count *c = calloc(1, sizeof(*c));
649 struct btrfs_qgroup_info_item *item;
652 c->qgroupid = btrfs_disk_key_offset(key);
656 item->generation = btrfs_qgroup_info_generation(leaf, disk);
657 item->referenced = btrfs_qgroup_info_referenced(leaf, disk);
658 item->referenced_compressed =
659 btrfs_qgroup_info_referenced_compressed(leaf, disk);
660 item->exclusive = btrfs_qgroup_info_exclusive(leaf, disk);
661 item->exclusive_compressed =
662 btrfs_qgroup_info_exclusive_compressed(leaf, disk);
664 if (insert_count(c)) {
672 static void add_bytes(u64 root_objectid, u64 num_bytes, int exclusive)
674 struct qgroup_count *count = find_count(root_objectid);
675 struct btrfs_qgroup_info_item *qg;
677 BUG_ON(num_bytes < 4096); /* Random sanity check. */
684 qg->referenced += num_bytes;
686 * count of compressed bytes is unimplemented, so we do the
689 qg->referenced_compressed += num_bytes;
692 qg->exclusive += num_bytes;
693 qg->exclusive_compressed += num_bytes;
697 static int load_quota_info(struct btrfs_fs_info *info)
700 struct btrfs_root *root = info->quota_root;
701 struct btrfs_root *tmproot;
702 struct btrfs_path path;
703 struct btrfs_key key;
704 struct btrfs_key root_key;
705 struct btrfs_disk_key disk_key;
706 struct extent_buffer *leaf;
707 struct btrfs_qgroup_info_item *item;
708 struct qgroup_count *count;
711 btrfs_init_path(&path);
717 ret = btrfs_search_slot(NULL, root, &key, &path, 0, 0);
719 fprintf(stderr, "ERROR: Couldn't search slot: %d\n", ret);
724 leaf = path.nodes[0];
726 nr = btrfs_header_nritems(leaf);
727 for(i = 0; i < nr; i++) {
728 btrfs_item_key(leaf, &disk_key, i);
729 btrfs_disk_key_to_cpu(&key, &disk_key);
731 if (key.type == BTRFS_QGROUP_RELATION_KEY)
732 printf("Ignoring qgroup relation key %llu\n",
736 * Ignore: BTRFS_QGROUP_STATUS_KEY,
737 * BTRFS_QGROUP_LIMIT_KEY, BTRFS_QGROUP_RELATION_KEY
739 if (key.type != BTRFS_QGROUP_INFO_KEY)
742 item = btrfs_item_ptr(leaf, i,
743 struct btrfs_qgroup_info_item);
745 count = alloc_count(&disk_key, leaf, item);
748 fprintf(stderr, "ERROR: out of memory\n");
752 root_key.objectid = key.offset;
753 root_key.type = BTRFS_ROOT_ITEM_KEY;
754 root_key.offset = (u64)-1;
755 tmproot = btrfs_read_fs_root_no_cache(info, &root_key);
756 if (tmproot && !IS_ERR(tmproot)) {
757 count->subvol_exists = 1;
762 ret = btrfs_next_leaf(root, &path);
768 btrfs_release_path(&path);
773 static int add_inline_refs(struct btrfs_fs_info *info,
774 struct extent_buffer *ei_leaf, int slot,
775 u64 bytenr, u64 num_bytes, int meta_item)
777 struct btrfs_extent_item *ei;
778 struct btrfs_extent_inline_ref *iref;
779 struct btrfs_extent_data_ref *dref;
780 u64 flags, root_obj, offset, parent;
781 u32 item_size = btrfs_item_size_nr(ei_leaf, slot);
786 ei = btrfs_item_ptr(ei_leaf, slot, struct btrfs_extent_item);
787 flags = btrfs_extent_flags(ei_leaf, ei);
789 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !meta_item) {
790 struct btrfs_tree_block_info *tbinfo;
791 tbinfo = (struct btrfs_tree_block_info *)(ei + 1);
792 iref = (struct btrfs_extent_inline_ref *)(tbinfo + 1);
794 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
797 ptr = (unsigned long)iref;
798 end = (unsigned long)ei + item_size;
800 iref = (struct btrfs_extent_inline_ref *)ptr;
802 parent = root_obj = 0;
803 offset = btrfs_extent_inline_ref_offset(ei_leaf, iref);
804 type = btrfs_extent_inline_ref_type(ei_leaf, iref);
806 case BTRFS_TREE_BLOCK_REF_KEY:
809 case BTRFS_EXTENT_DATA_REF_KEY:
810 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
811 root_obj = btrfs_extent_data_ref_root(ei_leaf, dref);
813 case BTRFS_SHARED_DATA_REF_KEY:
814 case BTRFS_SHARED_BLOCK_REF_KEY:
821 if (alloc_ref(bytenr, root_obj, parent, num_bytes) == NULL)
824 ptr += btrfs_extent_inline_ref_size(type);
830 static int add_keyed_ref(struct btrfs_fs_info *info,
831 struct btrfs_key *key,
832 struct extent_buffer *leaf, int slot,
833 u64 bytenr, u64 num_bytes)
835 u64 root_obj = 0, parent = 0;
836 struct btrfs_extent_data_ref *dref;
839 case BTRFS_TREE_BLOCK_REF_KEY:
840 root_obj = key->offset;
842 case BTRFS_EXTENT_DATA_REF_KEY:
843 dref = btrfs_item_ptr(leaf, slot, struct btrfs_extent_data_ref);
844 root_obj = btrfs_extent_data_ref_root(leaf, dref);
846 case BTRFS_SHARED_DATA_REF_KEY:
847 case BTRFS_SHARED_BLOCK_REF_KEY:
848 parent = key->offset;
854 if (alloc_ref(bytenr, root_obj, parent, num_bytes) == NULL)
861 * return value of 0 indicates leaf or not meta data. The code that
862 * calls this does not need to make a distinction between the two as
863 * it is only concerned with intermediate blocks which will always
866 static int get_tree_block_level(struct btrfs_key *key,
867 struct extent_buffer *ei_leaf,
871 int meta_key = key->type == BTRFS_METADATA_ITEM_KEY;
873 struct btrfs_extent_item *ei;
875 ei = btrfs_item_ptr(ei_leaf, slot, struct btrfs_extent_item);
876 flags = btrfs_extent_flags(ei_leaf, ei);
878 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !meta_key) {
879 struct btrfs_tree_block_info *tbinfo;
880 tbinfo = (struct btrfs_tree_block_info *)(ei + 1);
881 level = btrfs_tree_block_level(ei_leaf, tbinfo);
882 } else if (meta_key) {
883 /* skinny metadata */
884 level = (int)key->offset;
890 * Walk the extent tree, allocating a ref item for every ref and
891 * storing it in the bytenr tree.
893 static int scan_extents(struct btrfs_fs_info *info,
896 int ret, i, nr, level;
897 struct btrfs_root *root = info->extent_root;
898 struct btrfs_key key;
899 struct btrfs_path path;
900 struct btrfs_disk_key disk_key;
901 struct extent_buffer *leaf;
902 u64 bytenr = 0, num_bytes = 0;
904 btrfs_init_path(&path);
906 key.objectid = start;
910 ret = btrfs_search_slot(NULL, root, &key, &path, 0, 0);
912 fprintf(stderr, "ERROR: Couldn't search slot: %d\n", ret);
918 leaf = path.nodes[0];
920 nr = btrfs_header_nritems(leaf);
921 for(i = 0; i < nr; i++) {
922 btrfs_item_key(leaf, &disk_key, i);
923 btrfs_disk_key_to_cpu(&key, &disk_key);
925 if (key.objectid < start)
928 if (key.objectid > end)
931 if (key.type == BTRFS_EXTENT_ITEM_KEY ||
932 key.type == BTRFS_METADATA_ITEM_KEY) {
935 tot_extents_scanned++;
937 bytenr = key.objectid;
938 num_bytes = key.offset;
939 if (key.type == BTRFS_METADATA_ITEM_KEY) {
940 num_bytes = info->extent_root->leafsize;
944 ret = add_inline_refs(info, leaf, i, bytenr,
949 level = get_tree_block_level(&key, leaf, i);
951 if (alloc_tree_block(bytenr, num_bytes,
959 if (key.type > BTRFS_SHARED_DATA_REF_KEY)
961 if (key.type < BTRFS_TREE_BLOCK_REF_KEY)
965 * Keyed refs should come after their extent
966 * item in the tree. As a result, the value of
967 * bytenr and num_bytes should be unchanged
968 * from the above block that catches the
969 * original extent item.
971 BUG_ON(key.objectid != bytenr);
973 ret = add_keyed_ref(info, &key, leaf, i, bytenr,
979 ret = btrfs_next_leaf(root, &path);
983 "ERROR: Next leaf failed: %d\n", ret);
992 btrfs_release_path(&path);
997 static void print_fields(u64 bytes, u64 bytes_compressed, char *prefix,
1000 printf("%s\t\t%s %llu %s compressed %llu\n",
1001 prefix, type, (unsigned long long)bytes, type,
1002 (unsigned long long)bytes_compressed);
1005 static void print_fields_signed(long long bytes,
1006 long long bytes_compressed,
1007 char *prefix, char *type)
1009 printf("%s\t\t%s %lld %s compressed %lld\n",
1010 prefix, type, bytes, type, bytes_compressed);
1013 static void print_qgroup_difference(struct qgroup_count *count, int verbose)
1016 struct btrfs_qgroup_info_item *info = &count->info;
1017 struct btrfs_qgroup_info_item *disk = &count->diskinfo;
1018 long long excl_diff = info->exclusive - disk->exclusive;
1019 long long ref_diff = info->referenced - disk->referenced;
1021 is_different = excl_diff || ref_diff;
1023 if (verbose || (is_different && count->subvol_exists)) {
1024 printf("Counts for qgroup id: %llu %s\n",
1025 (unsigned long long)count->qgroupid,
1026 is_different ? "are different" : "");
1028 print_fields(info->referenced, info->referenced_compressed,
1029 "our:", "referenced");
1030 print_fields(disk->referenced, disk->referenced_compressed,
1031 "disk:", "referenced");
1033 print_fields_signed(ref_diff, ref_diff,
1034 "diff:", "referenced");
1035 print_fields(info->exclusive, info->exclusive_compressed,
1036 "our:", "exclusive");
1037 print_fields(disk->exclusive, disk->exclusive_compressed,
1038 "disk:", "exclusive");
1040 print_fields_signed(excl_diff, excl_diff,
1041 "diff:", "exclusive");
1045 void print_qgroup_report(int all)
1047 struct rb_node *node;
1048 struct qgroup_count *c;
1050 node = rb_first(&counts.root);
1052 c = rb_entry(node, struct qgroup_count, rb_node);
1053 print_qgroup_difference(c, all);
1054 node = rb_next(node);
1058 int qgroup_verify_all(struct btrfs_fs_info *info)
1062 if (!info->quota_enabled)
1065 tree_blocks = ulist_alloc(0);
1068 "ERROR: Out of memory while allocating ulist.\n");
1072 ret = load_quota_info(info);
1074 fprintf(stderr, "ERROR: Loading qgroups from disk: %d\n", ret);
1079 * Put all extent refs into our rbtree
1081 ret = scan_extents(info, 0, ~0ULL);
1083 fprintf(stderr, "ERROR: while scanning extent tree: %d\n", ret);
1087 ret = map_implied_refs(info);
1089 fprintf(stderr, "ERROR: while mapping refs: %d\n", ret);
1093 account_all_refs(1, 0);
1097 * Don't free the qgroup count records as they will be walked
1098 * later via the print function.
1101 free_ref_tree(&by_bytenr);
1105 static void __print_subvol_info(u64 bytenr, u64 num_bytes, struct ulist *roots)
1107 int n = roots->nnodes;
1108 struct ulist_iterator uiter;
1109 struct ulist_node *unode;
1111 printf("%llu\t%llu\t%d\t", bytenr, num_bytes, n);
1113 ULIST_ITER_INIT(&uiter);
1114 while ((unode = ulist_next(roots, &uiter))) {
1115 printf("%llu ", unode->val);
1120 static void print_subvol_info(u64 subvolid, u64 bytenr, u64 num_bytes,
1121 struct ulist *roots)
1123 struct ulist_iterator uiter;
1124 struct ulist_node *unode;
1126 ULIST_ITER_INIT(&uiter);
1127 while ((unode = ulist_next(roots, &uiter))) {
1128 BUG_ON(unode->val == 0ULL);
1129 if (unode->val == subvolid) {
1130 __print_subvol_info(bytenr, num_bytes, roots);
1138 int print_extent_state(struct btrfs_fs_info *info, u64 subvol)
1142 tree_blocks = ulist_alloc(0);
1145 "ERROR: Out of memory while allocating ulist.\n");
1150 * Put all extent refs into our rbtree
1152 ret = scan_extents(info, 0, ~0ULL);
1154 fprintf(stderr, "ERROR: while scanning extent tree: %d\n", ret);
1158 ret = map_implied_refs(info);
1160 fprintf(stderr, "ERROR: while mapping refs: %d\n", ret);
1164 printf("Offset\t\tLen\tRoot Refs\tRoots\n");
1165 account_all_refs(0, subvol);
1169 free_ref_tree(&by_bytenr);