tree 925045fe3c1429ea9cf441d61a82f1802409230a
parent 6e0ed3d19c54603f0f7d628ea04b550151d8a262
author Darrick J. Wong <djwong@kernel.org> 1659666503 -0500
committer Eric Sandeen <sandeen@sandeen.net> 1659666503 -0500

mkfs: complain about impossible log size constraints

xfs/042 trips over an impossible fs geometry when nrext64 is enabled.
The minimum log size calculation comes out to 4287 blocks, but the mkfs
parameters specify an AG size of 4096 blocks.  This eventually causes
mkfs to complain that the autoselected log size doesn't meet the minimum
size, but we could be a little more explicit in pointing out that the
two size constraints make for an impossible geometry.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>