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btrfs: handle __add_reloc_root failures in btrfs_recover_relocation 

We can already handle errors appropriately from this function, deal with
an error coming from __add_reloc_root appropriately.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add comment ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2021-03-12 15:25:29 -05:00 committed by David Sterba
parent 790c1b8cd4
commit 3c9258632c
1 changed files with 11 additions and 2 deletions
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13
fs/btrfs/relocation.c
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@ -4059,7 +4059,12 @@ int btrfs_recover_relocation(struct btrfs_root *root)
}
err = __add_reloc_root(reloc_root);
BUG_ON(err < 0); /* -ENOMEM or logic error */
if (err) {
list_add_tail(&reloc_root->root_list, &reloc_roots);
btrfs_put_root(fs_root);
btrfs_end_transaction(trans);
goto out_unset;
}
fs_root->reloc_root = btrfs_grab_root(reloc_root);
btrfs_put_root(fs_root);
}
@ -4274,7 +4279,11 @@ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
return PTR_ERR(reloc_root);
ret = __add_reloc_root(reloc_root);
BUG_ON(ret < 0);
if (ret) {
/* Pairs with create_reloc_root */
btrfs_put_root(reloc_root);
return ret;
}
new_root->reloc_root = btrfs_grab_root(reloc_root);
if (rc->create_reloc_tree)