diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_sb.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index da11992273e4..019dc324a146 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -174,6 +174,27 @@ xfs_mount_validate_sb( return -EFSCORRUPTED; } + /* + * Full inode chunks must be aligned to inode chunk size when + * sparse inodes are enabled to support the sparse chunk + * allocation algorithm and prevent overlapping inode records. + */ + if (xfs_sb_version_hassparseinodes(sbp)) { + uint32_t align; + + xfs_alert(mp, + "EXPERIMENTAL sparse inode feature enabled. Use at your own risk!"); + + align = XFS_INODES_PER_CHUNK * sbp->sb_inodesize + >> sbp->sb_blocklog; + if (sbp->sb_inoalignmt != align) { + xfs_warn(mp, +"Inode block alignment (%u) must match chunk size (%u) for sparse inodes.", + sbp->sb_inoalignmt, align); + return -EINVAL; + } + } + if (unlikely( sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) { xfs_warn(mp, |