From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
If the fuzz verb is 'random', keep generating new random values until
we get one that is distinct from the previous value.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
common/fuzzy | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/common/fuzzy b/common/fuzzy
index b9c7399..390f91f 100644
--- a/common/fuzzy
+++ b/common/fuzzy
@@ -179,9 +179,14 @@ _scratch_xfs_fuzz_metadata_field() {
for arg in "$@"; do
cmds+=("-c" "${arg}")
done
- _scratch_xfs_db -x "${cmds[@]}" -c "fuzz ${fuzz_arg} ${key} ${value}"
- echo
- newval="$(_scratch_xfs_get_metadata_field "${key}" "$@" 2> /dev/null)"
+ while true; do
+ _scratch_xfs_db -x "${cmds[@]}" -c "fuzz ${fuzz_arg} ${key} ${value}"
+ echo
+ newval="$(_scratch_xfs_get_metadata_field "${key}" "$@" 2> /dev/null)"
+ if [ "${key}" != "random" ] || [ "${oldval}" != "${newval}" ]; then
+ break;
+ fi
+ done
if [ "${oldval}" = "${newval}" ]; then
echo "Field ${key} already set to ${newval}, skipping test."
return 1
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