@@ -449,7 +449,8 @@ xfs_sb_has_compat_feature(
#define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */
#define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */
#define XFS_SB_FEAT_RO_COMPAT_ALL \
- (XFS_SB_FEAT_RO_COMPAT_FINOBT)
+ (XFS_SB_FEAT_RO_COMPAT_FINOBT | \
+ XFS_SB_FEAT_RO_COMPAT_RMAPBT)
#define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL
static inline bool
xfs_sb_has_ro_compat_feature(
@@ -213,6 +213,11 @@ xfs_mount_validate_sb(
return -EINVAL;
}
+ if (xfs_sb_version_hasrmapbt(sbp)) {
+ xfs_alert(mp,
+"EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!");
+ }
+
/*
* More sanity checking. Most of these were stolen directly from
* xfs_repair.