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btrfs-progs: add print support for the block group tree

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Add the appropriate support to the print tree and dump tree code to spit
out the block group tree.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2022-03-07 17:10:47 -05:00 committed by David Sterba
parent 9ee6cc78a8
commit cab7570ccc
2 changed files with 48 additions and 5 deletions
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30
cmds/inspect-dump-tree.c
View File

@ -83,8 +83,14 @@ out:
static void print_old_roots(struct btrfs_super_block *super)
{
const char *extent_tree_str = "extent root";
struct btrfs_root_backup *backup;
int i;
bool extent_tree_v2 = (btrfs_super_incompat_flags(super) &
BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2);
if (extent_tree_v2)
extent_tree_str = "block group root";
for (i = 0; i < BTRFS_NUM_BACKUP_ROOTS; i++) {
backup = super->super_roots + i;
@ -93,7 +99,7 @@ static void print_old_roots(struct btrfs_super_block *super)
(unsigned long long)btrfs_backup_tree_root_gen(backup),
(unsigned long long)btrfs_backup_tree_root(backup));
printf("\t\textent root gen %llu block %llu\n",
printf("\t\t%s gen %llu block %llu\n", extent_tree_str,
(unsigned long long)btrfs_backup_extent_root_gen(backup),
(unsigned long long)btrfs_backup_extent_root(backup));
@ -510,6 +516,11 @@ static int cmd_inspect_dump_tree(const struct cmd_struct *cmd,
info->log_root_tree->node->start,
btrfs_header_level(
info->log_root_tree->node));
if (info->block_group_root)
printf("block group tree: %llu level %d\n",
info->block_group_root->node->start,
btrfs_header_level(
info->block_group_root->node));
} else {
if (info->tree_root->node) {
printf("root tree\n");
@ -528,6 +539,12 @@ static int cmd_inspect_dump_tree(const struct cmd_struct *cmd,
btrfs_print_tree(info->log_root_tree->node,
BTRFS_PRINT_TREE_FOLLOW | print_mode);
}
if (info->block_group_root) {
printf("block group tree\n");
btrfs_print_tree(info->block_group_root->node,
BTRFS_PRINT_TREE_FOLLOW | print_mode);
}
}
}
tree_root_scan = info->tree_root;
@ -573,6 +590,17 @@ again:
goto close_root;
}
if (tree_id && tree_id == BTRFS_BLOCK_GROUP_TREE_OBJECTID) {
if (!info->block_group_root) {
error("cannot print block group tree, invalid pointer");
goto close_root;
}
printf("block group tree\n");
btrfs_print_tree(info->block_group_root->node,
BTRFS_PRINT_TREE_FOLLOW | print_mode);
goto close_root;
}
key.offset = 0;
key.objectid = 0;
key.type = BTRFS_ROOT_ITEM_KEY;

23
kernel-shared/print-tree.c
View File

@ -1872,8 +1872,14 @@ static int empty_backup(struct btrfs_root_backup *backup)
return 0;
}
static void print_root_backup(struct btrfs_root_backup *backup)
static void print_root_backup(struct btrfs_root_backup *backup,
bool extent_tree_v2)
{
const char *extent_tree_str = "backup_extent_root";
if (extent_tree_v2)
extent_tree_str = "backup_block_group_root";
printf("\t\tbackup_tree_root:\t%llu\tgen: %llu\tlevel: %d\n",
btrfs_backup_tree_root(backup),
btrfs_backup_tree_root_gen(backup),
@ -1882,7 +1888,8 @@ static void print_root_backup(struct btrfs_root_backup *backup)
btrfs_backup_chunk_root(backup),
btrfs_backup_chunk_root_gen(backup),
btrfs_backup_chunk_root_level(backup));
printf("\t\tbackup_extent_root:\t%llu\tgen: %llu\tlevel: %d\n",
printf("\t\t%s:\t%llu\tgen: %llu\tlevel: %d\n",
extent_tree_str,
btrfs_backup_extent_root(backup),
btrfs_backup_extent_root_gen(backup),
btrfs_backup_extent_root_level(backup));
@ -1894,7 +1901,7 @@ static void print_root_backup(struct btrfs_root_backup *backup)
btrfs_backup_dev_root(backup),
btrfs_backup_dev_root_gen(backup),
btrfs_backup_dev_root_level(backup));
printf("\t\tbackup_csum_root:\t%llu\tgen: %llu\tlevel: %d\n",
printf("\t\tcsum_root:\t%llu\tgen: %llu\tlevel: %d\n",
btrfs_backup_csum_root(backup),
btrfs_backup_csum_root_gen(backup),
btrfs_backup_csum_root_level(backup));
@ -1912,12 +1919,14 @@ static void print_backup_roots(struct btrfs_super_block *sb)
{
struct btrfs_root_backup *backup;
int i;
bool extent_tree_v2 = (btrfs_super_incompat_flags(sb) &
BTRFS_FEATURE_INCOMPAT_EXTENT_TREE_V2);
for (i = 0; i < BTRFS_NUM_BACKUP_ROOTS; i++) {
backup = sb->super_roots + i;
if (!empty_backup(backup)) {
printf("\tbackup %d:\n", i);
print_root_backup(backup);
print_root_backup(backup, extent_tree_v2);
}
}
}
@ -2034,6 +2043,12 @@ void btrfs_print_superblock(struct btrfs_super_block *sb, int full)
(unsigned long long)btrfs_super_cache_generation(sb));
printf("uuid_tree_generation\t%llu\n",
(unsigned long long)btrfs_super_uuid_tree_generation(sb));
printf("block_group_root\t%llu\n",
(unsigned long long)btrfs_super_block_group_root(sb));
printf("block_group_root_generation\t%llu\n",
(unsigned long long)btrfs_super_block_group_root_generation(sb));
printf("block_group_root_level\t%llu\n",
(unsigned long long)btrfs_super_block_group_root_level(sb));
uuid_unparse(sb->dev_item.uuid, buf);
printf("dev_item.uuid\t\t%s\n", buf);