[PATCH 9/8] common/populate: remember multi-device configurations

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Record the external log and realtime device configurations when we
create a sample filesystem.

Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 common/populate |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/common/populate b/common/populate
index e99ce68..b59ed02 100644
--- a/common/populate
+++ b/common/populate
@@ -713,7 +713,15 @@ _scratch_populate_cached() {
 	rm -rf "$(find "${POPULATE_METADUMP}" -mtime +2 2>/dev/null)"
 
 	# Throw away cached image if it doesn't match our spec.
-	meta_descr="FSTYP ${FSTYP} MKFS_OPTIONS ${MKFS_OPTIONS} SIZE $(blockdev --getsz "${SCRATCH_DEV}") ARGS $@"
+	case "${FSTYP}" in
+	"ext4")
+		extra_descr="LOGDEV ${SCRATCH_LOGDEV} USE_EXTERNAL ${USE_EXTERNAL}";;
+	"xfs")
+		extra_descr="LOGDEV ${SCRATCH_LOGDEV} USE_EXTERNAL ${USE_EXTERNAL} RTDEV ${SCRATCH_RTDEV}";;
+	*)
+		extra_descr="";;
+	esac
+	meta_descr="FSTYP ${FSTYP} MKFS_OPTIONS ${MKFS_OPTIONS} SIZE $(blockdev --getsz "${SCRATCH_DEV}") ${extra_descr} ARGS $@"
 	cmp -s "${POPULATE_METADUMP_DESCR}" <(echo "${meta_descr}") || rm -rf "${POPULATE_METADUMP}"
 
 	# Do we have a cached image?
--
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