Re: [PATCH 10/11] xfs: improve ondisk dquot flags checking

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On Wed, Jul 15, 2020 at 11:46:23PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> 
> Create an XFS_DQTYPE_ANY mask for ondisk dquots flags, and use that to
> ensure that we never accept any garbage flags when we're loading dquots.
> While we're at it, restructure the quota type flag checking to use the
> proper masking.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> ---
>  fs/xfs/libxfs/xfs_dquot_buf.c |   11 ++++++++---
>  fs/xfs/libxfs/xfs_format.h    |    2 ++
>  2 files changed, 10 insertions(+), 3 deletions(-)

Ok, I looked at this and questioned why it existed and why the
code didn't just use XFS_DQTYPE_REC_MASK directly. I think this
change exists because you plan on adding a new on-disk flag for
bigtime support and hence XFS_DQTYPE_ANY will grow to include the
new flag, right?

If so, can you add that to the commit message?

Code looks fine assuming I've understood this correctly...

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx



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