Changeset 01029fc in mainline for kernel/generic/src/mm/backend_phys.c

Timestamp:

2012-11-07T21:30:44Z (11 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

3b8a990

Parents:

c387838

Message:

Define two new as area backend callbacks.

• Add is_resizable(as_area_t *)
• Add is_shareable(as_area_t *)
• Remove special knowledge of the phys backend from as_area_resize()

File:

• kernel/generic/src/mm/backend_phys.c (modified) (3 diffs)

kernel/generic/src/mm/backend_phys.c

@@ -52 +52 @@
 static void phys_destroy(as_area_t *);
 
+static bool phys_is_resizable(as_area_t *);
+static bool phys_is_shareable(as_area_t *);
+
+
 static int phys_page_fault(as_area_t *, uintptr_t, pf_access_t);
 
@@ -59 +63 @@
         .share = phys_share,
         .destroy = phys_destroy,
+
+        .is_resizable = phys_is_resizable,
+        .is_shareable = phys_is_shareable,
 
         .page_fault = phys_page_fault,
@@ -87 +94 @@
         /* Nothing to do. */
 }
+
+bool phys_is_resizable(as_area_t *area)
+{
+        return false;
+}
+
+bool phys_is_shareable(as_area_t *area)
+{
+        return true;
+}
+
 
 /** Service a page fault in the address space area backed by physical memory.