Re: [PATCH 3/9] xfs: convert buffer cache to use high order folios

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On Wed, Mar 20, 2024 at 07:40:05PM -0700, Darrick J. Wong wrote:
> > Well xfs_verity.c could just zlib/zstd/whatever compress the contents
> > and see if that helps.  We only need a ~2% compression to shrink to a
> > single 4k block, a ~1% reduction for 64k blocks, or a 6% reduction for
> > 1k blocks.
> 
> ...or we just turn off the attr remote header for XFS_ATTR_VERITY merkle
> tree block values and XOR i_ino, merkle_pos, and the fs uuid into the
> first 32 bytes.

That does sound much better than wasting the space or crazy compression
schemes.





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