Re: [PATCH v2 0/4] btrfs: Add write time super block validation

[David Sterba <dsterba@suse.cz>]

On Tue, Apr 24, 2018 at 12:48:05PM +0800, Qu Wenruo wrote:
> This patchset can be fetched from github:
> https://github.com/adam900710/linux/tree/write_time_sb_check
> 
> We have 2 reports about corrupted btrfs super block, which has some garbage
> in its super block, but otherwise it's completely fine and its csum even
> matches.
> 
> This means we develop memory corruption during btrfs mount time.
> It's not clear whether it's caused by btrfs or some other kernel module,
> but at least let's do write time verification to catch such corruption
> early.
> 
> Changelog:
> v2:
>   Rename btrfs_check_super_valid() to btrfs_validate_super() suggested
>   by Nikolay and David.
> 
> Qu Wenruo (4):
>   btrfs: Rename btrfs_check_super_valid() to btrfs_validate_super()
>   btrfs: Add incompat flags check for btrfs_check_super_valid()
>   btrfs: Add csum type check for btrfs_check_super_valid()
>   btrfs: Do super block verification before writing it to disk

IIRC there were some comments about the overal structure of the checks,
but I can't find V3 of the patchset. Can you please resend it or point
me to it in case I missed it? Thanks.