Re: [PATCH] erofs: deprecate superblock checksum feature

[Gao Xiang]

On 2023/7/14 12:50, Jingbo Xu wrote:
> On 7/14/23 12:29 PM, Gao Xiang wrote:
> > On 2023/7/14 11:38, Jingbo Xu wrote:
> > > Later we're going to introduce fs-verity based verification for the
> > > whole image.  Make the superblock checksum feature deprecated.
> >
> > I'd suggest that
> >
> >
> > "Later we're going to try the self-contained image verification.
> >   The current superblock checksum feature has quite limited
> >   functionality, instead, merkle trees can provide better protection
> >   for image integrity.
> >
> >   Since the superblock checksum is a compatible feature, just
> >   deprecate now. "
> >   
>
> Yeah, another concern is that xxhash is used in the following xattr name
> filter feature [1] which is on the way.  It may be redundant to use two
> hashing algorithms for one filesystem.

Please help add this to the commit message when the next version
is sent.

Thanks,
Gao Xiang