diff options
Diffstat (limited to 'cmds-check.c')
| -rw-r--r-- | cmds-check.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/cmds-check.c b/cmds-check.c index 4b2a8f01..ae611d1d 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -5906,6 +5906,7 @@ static int btrfs_fsck_reinit_root(struct btrfs_trans_handle *trans, struct extent_buffer *c; struct extent_buffer *old = root->node; int level; + int ret; struct btrfs_disk_key disk_key = {0,0,0}; level = 0; @@ -5922,6 +5923,7 @@ static int btrfs_fsck_reinit_root(struct btrfs_trans_handle *trans, if (IS_ERR(c)) { c = old; extent_buffer_get(c); + overwrite = 1; } init: memset_extent_buffer(c, 0, 0, sizeof(struct btrfs_header)); @@ -5939,7 +5941,26 @@ init: BTRFS_UUID_SIZE); btrfs_mark_buffer_dirty(c); - + /* + * this case can happen in the following case: + * + * 1.overwrite previous root. + * + * 2.reinit reloc data root, this is because we skip pin + * down reloc data tree before which means we can allocate + * same block bytenr here. + */ + if (old->start == c->start) { + btrfs_set_root_generation(&root->root_item, + trans->transid); + root->root_item.level = btrfs_header_level(root->node); + ret = btrfs_update_root(trans, root->fs_info->tree_root, + &root->root_key, &root->root_item); + if (ret) { + free_extent_buffer(c); + return ret; + } + } free_extent_buffer(old); root->node = c; add_root_to_dirty_list(root); |