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xfs: remove experimental tag for reverse mapping

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Reverse mapping has had a while to soak, so remove the experimental tag.
Now that we've landed space metadata cross-referencing in scrub, the
feature actually has a purpose.

Reject rmap filesystems with an rt device until the code to support it
is actually implemented.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-01-31 09:47:25 -08:00
parent c14632ddac
commit 76883f7988
1 changed files with 4 additions and 8 deletions
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12
fs/xfs/xfs_super.c
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@ -1691,15 +1691,11 @@ xfs_fs_fill_super(
goto out_filestream_unmount;
}
if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
if (mp->m_sb.sb_rblocks) {
xfs_alert(mp,
"EXPERIMENTAL reverse mapping btree not compatible with realtime device!");
error = -EINVAL;
goto out_filestream_unmount;
}
if (xfs_sb_version_hasrmapbt(&mp->m_sb) && mp->m_sb.sb_rblocks) {
xfs_alert(mp,
"EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!");
"reverse mapping btree not compatible with realtime device!");
error = -EINVAL;
goto out_filestream_unmount;
}
error = xfs_mountfs(mp);