dirent: support DT_UNKNOWN where necessary for compat with reiserfs

TODO

@@ -24,6 +24,12 @@ F15:
 
 Features:
 
+* failure error string in "systemctl status"
+
+* send SIGCONT before SIGTERM
+
+* make sure timeouts are applied to Type=oneshot services.
+
 * maybe implement "systemctl mask" and "systemctl unmask", but not
   document it? When doing that add switch to make this temporary by
   placing mask links in /dev.

src/modules-load.c

@@ -43,7 +43,8 @@ static int scandir_filter(const struct dirent *d) {
                 return 0;
 
         if (d->d_type != DT_REG &&
-            d->d_type != DT_LNK)
+            d->d_type != DT_LNK &&
+            d->d_type != DT_UNKNOWN)
                 return 0;
 
         return endswith(d->d_name, ".conf");

src/tmpfiles.c

@@ -775,7 +775,8 @@ static int scandir_filter(const struct dirent *d) {
                 return 0;
 
         if (d->d_type != DT_REG &&
-            d->d_type != DT_LNK)
+            d->d_type != DT_LNK &&
+            d->d_type != DT_UNKNOWN)
                 return 0;
 
         return endswith(d->d_name, ".conf");

src/tty-ask-password-agent.c

@@ -507,6 +507,9 @@ static int show_passwords(void) {
                 int q;
                 char *wall;
 
+                /* We only support /dev on tmpfs, hence we can rely on
+                 * d_type to be reliable */
+
                 if (de->d_type != DT_REG)
                         continue;