Merge pull request #51 from trapexit/rlimits

Try RLIMIT_INFINITY first, then cur = max, then loop and try to increase...

src/resources.cpp

@@ -42,25 +42,29 @@ namespace mergerfs
     int
     maxout_rlimit(int resource)
     {
+      int rv;
       struct rlimit rlim;
 
-      if(geteuid() == 0)
-        {
       rlim.rlim_cur = RLIM_INFINITY;
       rlim.rlim_max = RLIM_INFINITY;
-        }
-      else
-        {
-          int rv;
+      rv = ::setrlimit(resource,&rlim);
+      if(rv == 0)
+        return 0;
 
       rv = ::getrlimit(resource,&rlim);
       if(rv == -1)
         return -1;
 
+      rv = 0;
+      rlim.rlim_cur = rlim.rlim_max;
+      while(rv == 0)
+        {
+          rv = ::setrlimit(resource,&rlim);
+          rlim.rlim_max *= 2;
           rlim.rlim_cur  = rlim.rlim_max;
         }
 
-      return ::setrlimit(resource,&rlim);
+      return rv;
     }
 
     int