xfs: fix the zoned RT growfs check for zone alignment

The grofs code for zoned RT subvolums already tries to check for zone
alignment, but gets it wrong by using the old instead of the new mount
structure.

Fixes: 01b71e64bb ("xfs: support growfs on zoned file systems")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Cc: stable@vger.kernel.org # v6.15
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-12-16 18:30:09 +01:00 • committed by Carlos Maiolino
commit dc68c0f601