Re: [PATCH RFC 14/29] xfs: add attribute type for fs-verity

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On 2025-08-11 13:50:23, Christoph Hellwig wrote:
> On Mon, Jul 28, 2025 at 10:30:18PM +0200, Andrey Albershteyn wrote:
> > From: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
> > 
> > The fsverity descriptor is stored in the extended attributes of the
> > inode. Add new attribute type for fs-verity metadata. Add
> > XFS_ATTR_INTERNAL_MASK to skip parent pointer and fs-verity attributes
> > as those are only for internal use. While we're at it add a few comments
> > in relevant places that internally visible attributes are not suppose to
> > be handled via interface defined in xfs_xattr.c.
> 
> So ext4 and other seems to place the descriptor just before the verity
> data.  What is the benefit of an attr?
> 

Mostly because it was already implemented. But looking for benefits,
attr can be inode LOCAL so a bit of saved space? Also, seems like a
better interface than to look at a magic offset

-- 
- Andrey





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