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| author | Chris Mason <chris.mason@oracle.com> | 2011-11-05 14:58:41 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2011-11-05 14:58:41 -0400 |
| commit | 13eced9a0c2b6bd6bc38e6f0f46a1977b1167e67 (patch) | |
| tree | c97a2a335337f4e0e4dabe591c6809f65d58dbc1 /debug-tree.c | |
| parent | 882895d4119992af2c9b654dbb3ac88cd17fa810 (diff) | |
Btrfs: add the tree history log to btrfs-progs
This also adds btrfs-debug-tree -R to print the history
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'debug-tree.c')
| -rw-r--r-- | debug-tree.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/debug-tree.c b/debug-tree.c index 91e0064f..2aeabfd7 100644 --- a/debug-tree.c +++ b/debug-tree.c @@ -62,6 +62,45 @@ static void print_extents(struct btrfs_root *root, struct extent_buffer *eb) } } +static void print_old_roots(struct btrfs_super_block *super) +{ + struct btrfs_root_backup *backup; + int i; + + for (i = 0; i < BTRFS_NUM_BACKUP_ROOTS; i++) { + backup = super->super_roots + i; + printf("btrfs root backup slot %d\n", i); + printf("\ttree root gen %llu block %llu\n", + (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", + (unsigned long long)btrfs_backup_extent_root_gen(backup), + (unsigned long long)btrfs_backup_extent_root(backup)); + + printf("\t\tchunk root gen %llu block %llu\n", + (unsigned long long)btrfs_backup_chunk_root_gen(backup), + (unsigned long long)btrfs_backup_chunk_root(backup)); + + printf("\t\tdevice root gen %llu block %llu\n", + (unsigned long long)btrfs_backup_dev_root_gen(backup), + (unsigned long long)btrfs_backup_dev_root(backup)); + + printf("\t\tcsum root gen %llu block %llu\n", + (unsigned long long)btrfs_backup_csum_root_gen(backup), + (unsigned long long)btrfs_backup_csum_root(backup)); + + printf("\t\tfs root gen %llu block %llu\n", + (unsigned long long)btrfs_backup_fs_root_gen(backup), + (unsigned long long)btrfs_backup_fs_root(backup)); + + printf("\t\t%llu used %llu total %llu devices\n", + (unsigned long long)btrfs_backup_bytes_used(backup), + (unsigned long long)btrfs_backup_total_bytes(backup), + (unsigned long long)btrfs_backup_num_devices(backup)); + } +} + int main(int ac, char **av) { struct btrfs_root *root; @@ -77,6 +116,7 @@ int main(int ac, char **av) int extent_only = 0; int device_only = 0; int roots_only = 0; + int root_backups = 0; u64 block_only = 0; struct btrfs_root *tree_root_scan; @@ -84,7 +124,7 @@ int main(int ac, char **av) while(1) { int c; - c = getopt(ac, av, "deb:r"); + c = getopt(ac, av, "deb:rR"); if (c < 0) break; switch(c) { @@ -97,6 +137,10 @@ int main(int ac, char **av) case 'r': roots_only = 1; break; + case 'R': + roots_only = 1; + root_backups = 1; + break; case 'b': block_only = atoll(optarg); break; @@ -289,6 +333,9 @@ again: if (extent_only || device_only) return 0; + if (root_backups) + print_old_roots(&root->fs_info->super_copy); + printf("total bytes %llu\n", (unsigned long long)btrfs_super_total_bytes(&root->fs_info->super_copy)); printf("bytes used %llu\n", |