On Thu, Jan 28, 2021 at 06:17:03PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
>
> In commit 3b0fe47805802, we reduced the free space requirement to
> perform a pre-write unwritten extent conversion on an S_DAX file. Since
> we're not actually allocating any space, the logic goes, we only need
> enough reservation to handle shape changes in the bmbt.
>
> The same logic should have been applied to quota -- we're not allocating
> any space, so we only need to reserve enough quota to handle the bmbt
> shape changes.
>
> Fixes: 3b0fe4780580 ("xfs: Don't use reserved blocks for data blocks with DAX")
> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Looks good,
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
