xfs: enable the rmap btree functionality
Originally-From: Dave Chinner <dchinner@redhat.com> Add the feature flag to the supported matrix so that the kernel can mount and use rmap btree enabled filesystems Signed-off-by: Dave Chinner <dchinner@redhat.com> [darrick.wong@oracle.com: move the experimental tag] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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@ -457,7 +457,8 @@ xfs_sb_has_compat_feature(
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#define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */
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#define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */
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#define XFS_SB_FEAT_RO_COMPAT_ALL \
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(XFS_SB_FEAT_RO_COMPAT_FINOBT)
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(XFS_SB_FEAT_RO_COMPAT_FINOBT | \
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XFS_SB_FEAT_RO_COMPAT_RMAPBT)
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#define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL
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static inline bool
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xfs_sb_has_ro_compat_feature(
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@ -1574,6 +1574,10 @@ xfs_fs_fill_super(
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}
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}
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if (xfs_sb_version_hasrmapbt(&mp->m_sb))
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xfs_alert(mp,
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"EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!");
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error = xfs_mountfs(mp);
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if (error)
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goto out_filestream_unmount;
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