Introduce a helper function _have_null_blk_feature which checks
/sys/kernel/config/features. It allows test cases to adapt to null_blk
feature support status.
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
---
common/null_blk | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/common/null_blk b/common/null_blk
index 91b78d4..d2f9e88 100644
--- a/common/null_blk
+++ b/common/null_blk
@@ -10,6 +10,10 @@ _have_null_blk() {
_have_driver null_blk
}
+_have_null_blk_feature() {
+ grep -qe "$1" /sys/kernel/config/nullb/features
+}
+
_remove_null_blk_devices() {
if [[ -d /sys/kernel/config/nullb ]]; then
find /sys/kernel/config/nullb -mindepth 1 -maxdepth 1 \
--
2.43.0
