refactor: vmm_set_map has option to ignore existed mapping.

[lunaix-os.git] / lunaix-os / kernel / mm / dmm.c

diff --git a/lunaix-os/kernel/mm/dmm.c b/lunaix-os/kernel/mm/dmm.c
index cb87202e82c33c18a373dcffb5f7def06bbca515..44f0f9e897d2d176a65c260f38744fb3aa3a4c6a 100644 (file)
--- a/lunaix-os/kernel/mm/dmm.c
+++ b/lunaix-os/kernel/mm/dmm.c
@@ -57,8 +57,8 @@ dmm_init(heap_context_t* heap)
         perm = 0;
     }
 
         perm = 0;
     }
 

-    return vmm_set_mapping(PD_REFERENCED, heap->brk, 0, PG_WRITE | perm) !=
-           NULL;
+    return vmm_set_mapping(
+             PD_REFERENCED, heap->brk, 0, PG_WRITE | perm, VMAP_NULL) != NULL;

 }
 
 int
 }
 
 int


@@ -93,7 +93,8 @@ lxsbrk(heap_context_t* heap, size_t size, int user)
             vmm_set_mapping(PD_REFERENCED,
                             PG_ALIGN(current_brk) + PG_SIZE + i,
                             0,
             vmm_set_mapping(PD_REFERENCED,
                             PG_ALIGN(current_brk) + PG_SIZE + i,
                             0,

-                            PG_WRITE | user);
+                            PG_WRITE | user,
+                            VMAP_NULL);

         }
     }
 
         }
     }