Spinlock save cpu flags

kernel/id/id_alloc.c

@@ -27,26 +27,30 @@ void id_alloc_fini (struct id_alloc* ida) {
 }
 
 int id_alloc (struct id_alloc* ida) {
-  spin_lock (&ida->lock);
+  uint64_t fid;
+
+  spin_lock (&ida->lock, &fid);
 
   for (size_t bit = 0; bit < ida->bm.nbits; bit++) {
     if (!bm_test (&ida->bm, bit)) {
       bm_set (&ida->bm, bit);
 
-      spin_unlock (&ida->lock);
+      spin_unlock (&ida->lock, fid);
       return (int)bit;
     }
   }
 
-  spin_unlock (&ida->lock);
+  spin_unlock (&ida->lock, fid);
   return -ST_OOM_ERROR;
 }
 
 void id_free (struct id_alloc* ida, int id) {
+  uint64_t fid;
+
   if (id < 0)
     return;
 
-  spin_lock (&ida->lock);
+  spin_lock (&ida->lock, &fid);
   bm_clear (&ida->bm, (size_t)id);
-  spin_unlock (&ida->lock);
+  spin_unlock (&ida->lock, fid);
 }