generator: also suppress fsck early if we are adding a bind mount

There's no point in "fscking a bind mount". Let's not do it hence.

src/shared/generator.c

@@ -270,7 +270,8 @@ int generator_write_fsck_deps(
                 const char *dir,
                 const char *what,
                 const char *where,
-                const char *fstype) {
+                const char *fstype,
+                const char *options) {
 
         int r;
 
@@ -298,6 +299,11 @@ int generator_write_fsck_deps(
                 }
         }
 
+        if (fstab_test_option(options, "bind\0rbind\0")) {
+                log_debug("Skipping file system check for bind mount of '%s'.", what);
+                return 0;
+        }
+
         if (!is_device_path(what)) {
                 log_warning("Checking was requested for \"%s\", but it is not a device.", what);
                 return 0;

src/shared/generator.h

@@ -22,7 +22,8 @@ int generator_write_fsck_deps(
         const char *dir,
         const char *what,
         const char *where,
-        const char *type);
+        const char *type,
+        const char *options);
 
 int generator_write_device_timeout(
         const char *dir,