Changeset ada559c in mainline for kernel/genarch/src/mm/as_pt.c

Timestamp:

2010-05-30T21:11:39Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

a820bf7

Parents:

c8e99bb

Message:

Add page_table_locked() interface.

File:

• kernel/genarch/src/mm/as_pt.c (modified) (3 diffs)

kernel/genarch/src/mm/as_pt.c

@@ -52 +52 @@
 static void pt_lock(as_t *, bool);
 static void pt_unlock(as_t *, bool);
+static bool pt_locked(as_t *);
 
 as_operations_t as_pt_operations = {
@@ -57 +58 @@
         .page_table_destroy = ptl0_destroy,
         .page_table_lock = pt_lock,
-        .page_table_unlock = pt_unlock
+        .page_table_unlock = pt_unlock,
+        .page_table_locked = pt_locked,
 };
 
@@ -146 +148 @@
 }
 
+/** Test whether page tables are locked.
+ *
+ * @param as            Address space where the page tables belong.
+ *
+ * @return              True if the page tables belonging to the address soace
+ *                      are locked, otherwise false.
+ */
+bool pt_locked(as_t *as)
+{
+        return mutex_locked(&as->lock);
+}
+
 /** @}
  */