tree 3af3b788f01bab94485394c461eb6e44f11364ee
parent 429ab1d81119010a6a09bba7573253ed5b1d13cc
author Darrick J. Wong <djwong@kernel.org> 1704821956 -0800
committer Darrick J. Wong <djwong@kernel.org> 1716321938 -0700

xfs_repair: check free space requirements before allowing upgrades

Currently, the V5 feature upgrades permitted by xfs_repair do not affect
filesystem space usage, so we haven't needed to verify the geometry.

However, this will change once we start to allow the sysadmin to add new
metadata indexes to existing filesystems.  Add all the infrastructure we
need to ensure that there's enough space for metadata space reservations
and per-AG reservations the next time the filesystem will be mounted.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
[david: Recompute transaction reservation values; Exit with error if upgrade fails]
Signed-off-by: Dave Chinner <david@fromorbit.com>
[djwong: Refuse to upgrade if any part of the fs has < 10% free]