Re: [PATCH 0/3] btrfs: add parent-child ownership check

[David Sterba <dsterba@suse.cz>]

On Tue, Feb 22, 2022 at 03:41:18PM +0800, Qu Wenruo wrote:
> Tree-checker doesn't really check owner except for empty leaf.
> 
> This allows parent-child ownership mismatch to sneak in.
> 
> Enhance the checks again tree block owner by:
> 
> - Add owner check when reading child tree blocks
> 
> - Make sure the tree root owner matches the root key
> 
> Unfortunately the check still has some cases missing, mostly for
> 
> - Log/reloc trees
>   Need full root key to check, which is not really possible for
>   some backref call sites.
> 
> 
> The first 2 patches are just cleanup to unify the error handling
> patterns, there are some "creative" way checking the errors, which is
> not really reader friendly.
> 
> The last patch is doing the real work.
> 
> Qu Wenruo (3):
>   btrfs: unify the error handling pattern for read_tree_block()
>   btrfs: unify the error handling of btrfs_read_buffer()
>   btrfs: check extent buffer owner against the owner rootid

Added to misc-next, thanks.