populate: check that we created a realtime rmap btree of the given height

Make sure that we actually create an rt rmap btree of the desired height
somewhere in the filesystem.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/common/populate b/common/populate
index c7bf29eebd8d02c6bc35df7750c3b66f5562b1ed..71401173f3526637c934a4df36b6df3ebb2f2c35 100644 (file)
--- a/common/populate
+++ b/common/populate
@@ -753,6 +753,37 @@ __populate_check_xfs_agbtree_height() {
        return 1
 }
 
+# Check that there's at least one rt btree with multiple levels
+__populate_check_xfs_rgbtree_height() {
+       local bt_type="$1"
+       local rgcount=$(_scratch_xfs_db -c 'sb 0' -c 'p rgcount' | awk '{print $3}')
+       local path
+       local path_format
+       local bt_prefix
+
+       case "${bt_type}" in
+       "rmap")
+               path_format="/rtgroups/%u.rmap"
+               bt_prefix="u3.rtrmapbt"
+               ;;
+       *)
+               _fail "Don't know about rt btree ${bt_type}"
+               ;;
+       esac
+
+       for ((rgno = 0; rgno < rgcount; rgno++)); do
+               path="$(printf "${path_format}" "${rgno}")"
+               bt_level=$(_scratch_xfs_db -c "path -m ${path}" -c "p ${bt_prefix}.level" | awk '{print $3}')
+               # "level" is the actual level within the btree
+               if [ "${bt_level}" -gt 0 ]; then
+                       return 0
+               fi
+       done
+
+       __populate_fail "Failed to create rt ${bt_type} of sufficient height!"
+       return 1
+}
+
 # Check that populate created all the types of files we wanted
 _scratch_xfs_populate_check() {
        _scratch_mount
@@ -776,6 +807,7 @@ _scratch_xfs_populate_check() {
        is_finobt=$(_xfs_has_feature "$SCRATCH_MNT" finobt -v)
        is_rmapbt=$(_xfs_has_feature "$SCRATCH_MNT" rmapbt -v)
        is_reflink=$(_xfs_has_feature "$SCRATCH_MNT" reflink -v)
+       is_rt="$(_xfs_get_rtextents "$SCRATCH_MNT")"
 
        blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
        dblksz="$(_xfs_get_dir_blocksize "$SCRATCH_MNT")"
@@ -806,6 +838,8 @@ _scratch_xfs_populate_check() {
        test $is_finobt -ne 0 && __populate_check_xfs_agbtree_height "fino"
        test $is_rmapbt -ne 0 && __populate_check_xfs_agbtree_height "rmap"
        test $is_reflink -ne 0 && __populate_check_xfs_agbtree_height "refcnt"
+       test $is_rmapbt -ne 0 && test $is_rt -gt 0 && \
+               __populate_check_xfs_rgbtree_height "rmap"
 }
 
 # Check data fork format of ext4 file