Re: [PATCH v5 22/24] xfs: make scrub aware of verity dinode flag

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On Tue, Mar 12, 2024 at 09:38:09AM -0700, Darrick J. Wong wrote:
> On Tue, Mar 12, 2024 at 01:10:06PM +0100, Andrey Albershteyn wrote:
> > On 2024-03-07 14:18:09, Darrick J. Wong wrote:
> > > On Mon, Mar 04, 2024 at 08:10:45PM +0100, Andrey Albershteyn wrote:
> > > > fs-verity adds new inode flag which causes scrub to fail as it is
> > > > not yet known.
> > > > 
> > > > Signed-off-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
> > > > Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> > > > ---
> > > >  fs/xfs/scrub/attr.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > > 
> > > > diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
> > > > index 9a1f59f7b5a4..ae4227cb55ec 100644
> > > > --- a/fs/xfs/scrub/attr.c
> > > > +++ b/fs/xfs/scrub/attr.c
> > > > @@ -494,7 +494,7 @@ xchk_xattr_rec(
> > > >  	/* Retrieve the entry and check it. */
> > > >  	hash = be32_to_cpu(ent->hashval);
> > > >  	badflags = ~(XFS_ATTR_LOCAL | XFS_ATTR_ROOT | XFS_ATTR_SECURE |
> > > > -			XFS_ATTR_INCOMPLETE | XFS_ATTR_PARENT);
> > > > +			XFS_ATTR_INCOMPLETE | XFS_ATTR_PARENT | XFS_ATTR_VERITY);
> > > 
> > > Now that online repair can modify/discard/salvage broken xattr trees and
> > > is pretty close to merging, how can I make it invalidate all the incore
> > > merkle tree data after a repair?
> > > 
> > > --D
> > > 
> > 
> > I suppose dropping all the xattr XFS_ATTR_VERITY buffers associated
> > with an inode should do the job.
> 
> Oh!  Yes, xfs_verity_cache_drop would handle that nicely.

Here's today's branch, in which I implemented Eric's suggestions for the
"support block-based Merkle tree caching" patch, except for the ones
that conflict with the different direction I went in for
->read_merkle_tree_block; and implemented Dave's suggestions for
shrinker improvements:

https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/log/?h=fsverity-cleanups-6.9_2024-03-12

--D

> --D
> 
> > -- 
> > - Andrey
> > 
> > 
> 




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