diff --git a/dracut-functions.sh b/dracut-functions.sh
index 5af4e458..1991c62e 100755
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -234,8 +234,13 @@ get_fs_env() {
 # 8:2
 get_maj_min() {
     local _majmin
-    _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)"
-    printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
+    out="$(grep -m1 -oP "^$1 \K\S+$" "${get_maj_min_cache_file:?}")"
+    if [ -z "$out" ]; then
+        _majmin="$(stat -L -c '%t:%T' "$1" 2> /dev/null)"
+        out="$(printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))")"
+        echo "$1 $out" >> "${get_maj_min_cache_file:?}"
+    fi
+    echo -n "$out"
 }
 
 # get_devpath_block <device>
diff --git a/dracut.sh b/dracut.sh
index ec00097e..c19606ae 100755
--- a/dracut.sh
+++ b/dracut.sh
@@ -1131,6 +1131,10 @@ readonly DRACUT_TMPDIR="$(mktemp -p "$TMPDIR/" -d -t dracut.XXXXXX)"
     exit 1
 }
 
+# Cache file used to optimize get_maj_min()
+declare -x -r get_maj_min_cache_file="${DRACUT_TMPDIR}/majmin_cache"
+: > "$get_maj_min_cache_file"
+
 # clean up after ourselves no matter how we die.
 trap '
     ret=$?;